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Service Manual Fuller Heavy Duty Transmissions TRSM0880 October 2007

Fuller Heavy Duty Transmissions TRSM0880...Service Manual Fuller Heavy Duty Transmissions TRSM0880 October 2007 For parts or service call us Pro Gear & Transmission, Inc. 1 (877) 776-4600

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Page 1: Fuller Heavy Duty Transmissions TRSM0880...Service Manual Fuller Heavy Duty Transmissions TRSM0880 October 2007 For parts or service call us Pro Gear & Transmission, Inc. 1 (877) 776-4600

Service Manual

Fuller Heavy Duty TransmissionsTRSM0880October 2007

Page 2: Fuller Heavy Duty Transmissions TRSM0880...Service Manual Fuller Heavy Duty Transmissions TRSM0880 October 2007 For parts or service call us Pro Gear & Transmission, Inc. 1 (877) 776-4600

For parts or service call us Pro Gear & Transmission, Inc.

1 (877) 776-4600

(407) 872-1901

[email protected]

906 W. Gore St.

Orlando, FL 32805

Page 3: Fuller Heavy Duty Transmissions TRSM0880...Service Manual Fuller Heavy Duty Transmissions TRSM0880 October 2007 For parts or service call us Pro Gear & Transmission, Inc. 1 (877) 776-4600
Page 4: Fuller Heavy Duty Transmissions TRSM0880...Service Manual Fuller Heavy Duty Transmissions TRSM0880 October 2007 For parts or service call us Pro Gear & Transmission, Inc. 1 (877) 776-4600

TABLE OF CONTENTS

FOREWORD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .MODEL DESIGNATION AND SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . ...=... . . .LUBRICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .POWER FLOW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TIMING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TORQUE RECOMMENDATIONS .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TOOL REFERENCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PREVENTIVE MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PRECAUTIONS

DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .REASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

CHANGING INPUT SHAFT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .AIR SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

RANGE SHIFT AIR SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SPLITTER SHIFT AIR SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

AIR SYSTEM SCHEMATICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .DISASSEMBLY SHIFTING CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .DISASSEMBLY GEAR SHIFT LEVER ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .REASSEMBLY GEAR SHIFT LEVER ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .DISASSEMBLY AND REASSEMBLY SHIFT BAR HOUSING . . . . . . . . . . . . . . . . . . . . . . . . . .REMOVAL - OUTPUT YOKE, AUXILIARY SECTION, AND

CLUTCH HOUSING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .DISASSEMBLY - AUXILIARY SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .REASSEMBLY - AUXILIARY SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .DISASSEMBLY - FRONT SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .REASSEMBLY - FRONT SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .INSTALLATION - CLUTCH HOUSING, AUXILIARY SECTION

AND OUTPUT YOKE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...117INSTALLATION - SHIFTING CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...120

. . . . . . . . . . . . . . . . . . . . . . . . . ■

1

Page 5: Fuller Heavy Duty Transmissions TRSM0880...Service Manual Fuller Heavy Duty Transmissions TRSM0880 October 2007 For parts or service call us Pro Gear & Transmission, Inc. 1 (877) 776-4600

FOREWORDThis manual is designed to provide detailed information

necessary to service and repair the Fuller’ Transmissionslisted on the cover.

As outlined in the Table of Contents, the manual isdivided into 3 main sections:

a. Technical information and referenceb. Removal, disassembly, reassembly and

installationc. Options

The format of the manual is designed to be followed in itsentirety if complete disassembly and reassembly of thetransmission is necessary. But if only one component of thetransmission needs to be repaired, refer to the Table ofContents for the page numbers showing that component.For example, if you need to work on the Shifting Controls,you will find instructions for removal, disassembly andreassembly on page 32. Instructions for installation are on

page 116. Service Manuals, Illustrated Parts Lists, DriversInstructions, and other forms of product service informationfor these and other Fuller Transmissions are available uponrequest. A Technical Literature Order Form maybe found inthe back of this manual. You may also obtain ServiceBulletins, detailing information on product improvements,repair procedures and other service-related subjects bywriting to the following address:

EATON CORPORATIONTRANSMISSION DIVISIONTechnical Service DepartmentP.O. Box 4013Kalamazoo, Michigan 49003(61 6) 342-3344

Every effort has been made to ensure the accuracy of all information in this brochure. However, Eaton Transmission Divisionmakes no expressed or implied warranty or representation based on the enclosed information. Any errors or omissions maybe reported to Training and Publications, Eaton Transmission Division, PO. Box 4013, Kalamazoo, Ml 49003.

2

Page 6: Fuller Heavy Duty Transmissions TRSM0880...Service Manual Fuller Heavy Duty Transmissions TRSM0880 October 2007 For parts or service call us Pro Gear & Transmission, Inc. 1 (877) 776-4600

MODEL DESIGNATIONSAND SPECIFICATIONSNomenclature:

IMPORTANT: All Eaton Fuller Transmissions areidentified by model and serial number. This infor-mation is stamped on the transmission identifica-tion tag and affixed to the case.DO NOT REMOVE OR DESTROY THE TRANS-MISSION IDENTIFICATION TAG.

18-Speed Transmissions (On/Off-Highway):

CHART NOTES:1 Lengths measured from face of clutch housing to front bottoming surface of companion flange or yoke.2 Weight — Listed weights are with clutch housing* and include standard controls, which consist of gear shift

lever housing and gear shift lever. Weight of standard controls is approximately 10 lbs. (4.5 kg.). All weightsare approximate.

3 Oil Capacities are approximate, depending on inclination of engine and transmission. Always fill transmis-sion with proper grade and type of lubricant to level of filler opening. See LUBRICATION.

*For information on available clutch housings refer to Publication FUL-140 - ’’Clutch Housing Chart”.

3

Page 7: Fuller Heavy Duty Transmissions TRSM0880...Service Manual Fuller Heavy Duty Transmissions TRSM0880 October 2007 For parts or service call us Pro Gear & Transmission, Inc. 1 (877) 776-4600

LUBRICATIONProperLubrication . . .

Fahrenheit(Celsius)Ambient

Temperature

the Key to longtransmission lifeProper lubrication procedures are the key to agood all-around maintenance program. If theoil is not doing its job, or if the oil level isignored, all the maintenance procedures in theworld are not going to keep the transmissionrunning or assure long transmission life.

Eaton® Fuller® Transmissions are designedso that the internal parts operate in a bath ofoil circulated by the motion of gears and shafts.

Thus, ail parts will be amply lubricated ifthese procedures are closely followed:

1. Maintain oil level. Inspect regularly.2. Change oil regularly.3. Use the correct grade and type of oil.4. Buy from a reputable dealer.

Lubrication Change and Inspection

Eaton® Roadranger ® CD50 Transmission Fluid

HIGHWAY USE—Heavy Duty and Mid-Range

First 3,000 to 5,000 miles Factory fill(4827 to 8045 Km) Inltlal drain

Every 10,000 miles Check fluid level(16090 Km) Check for leaks

Heavy Duty Highway Change Interval

Every 250,000 miles Change transmission(402336 Km) fluid,

Mid-Range Highway Change Interval

Every 100,000 miles (160,000 Km) Change transmissionor every 3 years whichever occurs first fluid.

I OFF-HIGHWAY USE

First 30 hours Factory fill Initial drain,

Every 40 hours Inspect fluid level Check for leaks

I Every 500 hours Change transmission fluid wheresevere dirt conditions exist.

I Every 1,000 hours Change transmission fluid(Normal off-highway use),

Heavy Duty Engine Lubricant orMineral Gear Lubricant

I HIGHWAY USE

I First 3,000 to 5,000 miles Factory fill(4827 to 8045 Km) Initial drain.

I Every 10,000 miles Inspect Iubricant level,(16090 Km) Check for leaks,

I Every 50,000 miles Change transmission(80450 Km) lubricant,

I OFF-HIGHWAY USE

First 30 hours Change transmission lubricant on new units

Every 40 hours Inspect Iubricant level Check for leaks

Every 500 hours Change transmission Iubricant wheresevere dirt conditions exist.

Every 1,000 hours Change transmission Iubricant(Normal off-highway use),

Change the oil filter when fluid or lubricant is changed.

Recommended Lubricants

GradeType (SAE)

Eaton® Roadranger®

CD50 TransmissionFluid 50 All

Heavy Duty Engine 011MI L-L-2104B C or D or 50 Above 10oF(-12oC.)API-SF or API-CD 40 Above 10oF(-12oC.)

(Previous API designations 30 Below 10oF(-12oC.)acceptable)

Mineral Gear 011 with rust 90 Above 10oF(-12oC.)and oxidation Inhibitor 80W Below 10oF(-12oC.)API-GL-1

The use of mild EP gear oil or multi-pur-pose gear oil is not recommended, but ifthese gear oils are used, be sure to adhere tothe following limitations:

Do not use mild EP gear oil or multi-pur-pose gear oil when operating temperatures areabove 230°F (110oC). Many of these gear oils,particularly 85W140, break down above 230°Fand coat seals, bearings and gears with de-posits that may cause premature failures. Ifthese deposits are observed (especially a coat-ing on seal areas causing oil leakage), changeto Eaton Roadranger CD50 transmission fluid,heavy duty engine oil or mineral gear oil toassure maximum component life and to main-tain your warranty with Eaton. (Also see“Operating Temperatures”.)

Additives and friction modifiers are not recom-mended for use in Eaton Fuller transmissions.

Proper Oil LevelMake sure oil is level with filler opening. Be-cause you can reach oil with your finger doesnot mean oil is at proper level. One inch of oillevel is about one gallon of oil.

Draining OilDrain transmission while oil is warm. To drainoil remove the drain plug at bottom of case.Clean the drain plug before re-installing.

RefillingClean case around filler plug and remove plugfrom side of case. Fill transmission to thelevel of the filler opening. If transmission hastwo filler openings, fill to level of both open-ings.

The exact amount of oil will depend on thetransmission inclination and model. Do notover fill—this will cause oil to be forced outof the transmission.

When adding oil, types and brands of oilshould not be mixed because of possible in-

4 compatibility.

, ... . . .

Page 8: Fuller Heavy Duty Transmissions TRSM0880...Service Manual Fuller Heavy Duty Transmissions TRSM0880 October 2007 For parts or service call us Pro Gear & Transmission, Inc. 1 (877) 776-4600

LUBRICATIONOperating Temperatures—With Eaton® Roadranger ®

CD50 Transmission FluidHeavy Duty Engine Oiland Mineral Oil

The transmission should not be operated con-sistently at temperatures above 250oF (120oC).However, intermittent operating temperaturesto 300oF (149oC) will not harm the transmis-sion. Operating temperatures above 250oFincrease the lubricant’s rate of oxidation andshorten its effective life. When the averageoperating temperature is above 250oF, thetransmission may require more frequent oilchanges or external cooling.

The following conditions in any combina-tion can cause operating temperatures of over250oF: (1) operating consistently at slowspeeds, (2) high ambient temperatures, (3) re-stricted air flow around transmission, (4) ex-haust system too close to transmission, (5)high horsepower, overdrive operation.

External oil coolers are available to reduceoperating temperatures when the above condi-tions are encountered.

Transmission Oil Coolers are:

Recommended— With engines of 350 H.P. and above

with overdrive transmissions

Required

— With engines 399 H.P. and above withoverdrive transmissions and GCW’Sover 90,000 lbs.

— With engines 399 H.P. and above and1400 Lbs.-Ft. or greater torque

— With engines 450 H.P. and above

— With EP or Multipurpose Gear OilMild EP gear oil and multipurpose gear oil arenot recommended when lubricant operatingtemperatures are above 230°F (110). In addi-tion, transmission oil coolers are not recom-mended with these gear oils since the oilcooler materials may be attacked by thesegear oils. The lower temperature limit and oilcooler restriction with these gear oils gener-ally limit their success to milder applications.

Proper Lubrication Levelsas Related to TransmissionInstallation AnglesIf the transmission operating angle is morethan 12 degrees, improper lubrication can oc-cur. The operating angle is the transmissionmounting angle in the chassis plus the per-cent of upgrade (expressed in degrees).

The chart below illustrates the safe percentof upgrade on which the transmission can beused with various chassis mounting angles.For example: if you have a 4 degree transmis-sion mounting angle, then 8 degrees (or 14percent of grade) is equal to the limit of 12degrees. If you have a O degree mountingangle, the transmission can be operated on a12 degree (21 percent) grade.

Anytime the transmission operating angle of12 degrees is exceeded for an extendedperiod of time the transmission should beequipped with an oil pump or cooler kit toinsure proper lubrication.

Note on the chart the effect low oil levelscan have on safe operating angles. Allowingthe oil level to fall 1/2” below the filler plughole reduces the degree of grade by approxi-mately 3 degrees (5.5 percent).

Proper Lubrication Levels are Essential!

Transmission Mounting AngleDotted line showing “2 Quarts Low” is forreference only. Not recommended.

5

Page 9: Fuller Heavy Duty Transmissions TRSM0880...Service Manual Fuller Heavy Duty Transmissions TRSM0880 October 2007 For parts or service call us Pro Gear & Transmission, Inc. 1 (877) 776-4600

OPERATION18- Speed TransmissionShift Lever Patterns and Shifting Controls

SHIFT LO-1 -2.3-4 INLO RANGE.

RANGE SHIFT . . .AND SHIFT 5-6.7.8 IN

HI RANGE.

OVERDRIVE

ROAD RANGER VALVE(A-5013)

SPLITTER CONTROL BUTTON

6

Page 10: Fuller Heavy Duty Transmissions TRSM0880...Service Manual Fuller Heavy Duty Transmissions TRSM0880 October 2007 For parts or service call us Pro Gear & Transmission, Inc. 1 (877) 776-4600

POWER FLOWThe transmission must efficiently transfer the engine’s power, in terms of torque, to the vehicle’s rear wheels.Knowledge of what takes place in the transmission during torque transfer is essential when troubleshootingand making repairs.

Front Section Power Flow(LO Range Direct)

1.

2.

3.

4.

5.

6.

Power (torque) from the vehicle’s engine is trans- 7.ferred to the transmission’s input shaft.Splines of input shaft engage internal splines in 8.hub of main drive gear.Torque is split between the two countershaftdrive gears. 9.Torque is delivered along both countershaft tomating countershaft gears of “engaged” main- 10.shaft gear. The following cross section views il-lustrate a 1st/5th speed gear engagement.Internal clutching teeth in hub of engaged main-shaft gear transfers torque to mainshaft throughsliding clutch.Mainshaft transfers torque directly to rear aux-iliary drive gear.

The rear auxiliary drive gear splits torque be-tween the two auxiliary countershaft drive gears.Torque is delivered along both auxiliary counter-shaft to the “engaged” reduction gear on outputshaft.Torque is transferred to output shaft through slid-ing clutch.Output shaft delivers torque to driveline.

LO RANGE DIRECT

Cut 8006C-11 /87

7

Page 11: Fuller Heavy Duty Transmissions TRSM0880...Service Manual Fuller Heavy Duty Transmissions TRSM0880 October 2007 For parts or service call us Pro Gear & Transmission, Inc. 1 (877) 776-4600

POWER FLOWAuxiliary Section Power Flow:LO

7.

RANGE OVERDRIVEThe front auxiliary drive gear splits torque be-tween the two auxiliary countershaft drive gears.

8. Torque is delivered along both countershafts to"engaged" LO RANGE gear on range mainshaftor output shaft.

9. Torque is transferred to the output shaft throughthe sliding clutch.

10. Torque is delivered to driveline as LO RANGE 1stgear OVERDRIVE.

Auxiliary Section Power Flow:HI

7.

RANGE DIRECTThe rear auxiliary drive gear transfers torque 8. Torque is delivered through theoutput shaft todirectly to the output shaft through ñengagedî driveline as HI RANGE 5th gear.sliding clutch.

8

Page 12: Fuller Heavy Duty Transmissions TRSM0880...Service Manual Fuller Heavy Duty Transmissions TRSM0880 October 2007 For parts or service call us Pro Gear & Transmission, Inc. 1 (877) 776-4600

POWER FLOWAuxiliary Section Power Flow:HI

7.

8.

RANGE OVERDRIVEThe front auxiliary drive gear splits torque be- 9. Torque is transferred to output shaft through thetween the two auxiliary countershaft drive gears. sliding clutch.Torque is delivered along both auxiliary counter- 10. Output shaft delivers torque to driveline as HIs h a f t s t o m a t i n g c o u n t e r s h a f t g e a r s o f Range 5th gear OVERDRIVE.“engaged” rear auxiliary drive gear.

9

Page 13: Fuller Heavy Duty Transmissions TRSM0880...Service Manual Fuller Heavy Duty Transmissions TRSM0880 October 2007 For parts or service call us Pro Gear & Transmission, Inc. 1 (877) 776-4600

TIMINGTiming Procedures: All ModeIs

It is essential that both countershaft assemblies ofthe front and auxiliary sections are “timed. ” This as-sures proper tooth contact is made between main-shaft gears seeking to center on the mainshaftduring torque transfer and mating countershaft gearsthat distribute the load evenly. If not properly timed,serious damage to the transmission is likely to resultfrom unequal tooth contact causing the mainshaftgears to climb out of equilibrium.

Timing is a simple procedure of marking the appro-priate teeth of a gear set prior to installation andplacing them in proper mesh while in the transmis-sion. In the front section, it is necessary to time onlythe drive gear set. And depending on the model, onlythe LO range, deep reduction, or splitter gear set istimed in the auxiliary section.

Front SectionA. Marking countershaft drive gear teeth.

1. Prior to placing each countershaft assemblyinto case, clearly mark the tooth locateddirectly over the keyway of drive gear asshown. This tooth is stamped with an “O” toaid identification.

Tooth on Countershaftdirectly over Keywaymarked for timing

Cut 7300 H-11/86

B. Marking main drive gear teeth.1.

2.

Mark any two adjacent teeth on the main drivegear.Mark the two adjacent teeth located directlyopposite the first-set marked on the main drivegear. As shown below, there should be anequal number of unmarked gear teeth on eachside between the marked sets.

Drive gear teeth correct/ymarked for timing.

C. Meshing marked countershaft drive gear teethwith marked main drive gear teeth.(After placing the mainshaft assembly into case,the countershaft bearings are installed to com-plete installation of the countershaft assemblies.)1.

2.

When installing the bearings on left counter-shaft, mesh the marked tooth of countershaftdrive gear with either set or two marked teethon the main drive gear.Repeat the procedure when installing thebearings on right countershaft, making use ofthe remaining set of two marked teeth on themain drive gear to time assembly.

Countershaft gear teethmeshed with drive gear teethfor correct timing.

Cut 7300 F-1 1/86

Auxiliary SectionA. Timing the auxiliary countershaft and LO range

gear.1.

2.

3.

4.5.

6.

Mark any two adjacent teeth on “the LO rangegear of set to be timed. Then mark the two ad-jacent teeth located directly opposite the firstset marked as shown in Illustration B.Prior to placing each auxiliary countershaft as-sembly into housing, mark the tooth stampedwith an “O” on gear to mate with timed main-shaft gear as shown in Illustration A.Install the LO range gear on the out put shaftand into the auxiliary case.Seat the auxiliary countershaft bearings.Install the rear bearing cover and tighten torecommended torque.Place the auxiliary countershaft assembliesinto position and mesh the marked teeth of themating countershaft gears with the markedteeth of the LO range gear as shown in illustra-tion C.

Cut 7300 G-11/86

Page 14: Fuller Heavy Duty Transmissions TRSM0880...Service Manual Fuller Heavy Duty Transmissions TRSM0880 October 2007 For parts or service call us Pro Gear & Transmission, Inc. 1 (877) 776-4600

TORQUE RECOMMENDATIONSCorrect torque application is extremely important to assure long transmission life and dependable performance.Over-tightening or under-tightening can result in a loose installation and, in many instances, eventually causedamage to transmission gears, shafts, and/or bearings. Use a torque wrench whenever possible to attain recom-mended lbs./ft. ratings. Do not torque capscrews dry.

FRONT SECTION: ALL MODELS

1

Cut 7190 K-11/87

11

Page 15: Fuller Heavy Duty Transmissions TRSM0880...Service Manual Fuller Heavy Duty Transmissions TRSM0880 October 2007 For parts or service call us Pro Gear & Transmission, Inc. 1 (877) 776-4600

TORQUE RECOMMENDATIONS

AUXILIARY SECTIONS

Cut 7191 Q-11/87

12

Page 16: Fuller Heavy Duty Transmissions TRSM0880...Service Manual Fuller Heavy Duty Transmissions TRSM0880 October 2007 For parts or service call us Pro Gear & Transmission, Inc. 1 (877) 776-4600

TOOL REFERENCEsome repair procedures pictured in this manual showthe use of specialized tools. Their actual use is rec-ommended as they make transmission repair easier,faster, and prevent costly damage to critical parts.

But for the most part, ordinary mechanic’s toolssuch as socket wrenches, screwdrivers, etc., andother standard shop items such as a press, mauls andsoft bars are all that is needed to successfully disas-semble and reassemble any Fuller Transmission.

The specialized tools listed below can be obtainedfrom a tool supplier or made from dimensions as re-quired by the individual user. Detailed Fuller Transmit-sion Tool Prints are available upon request by writing.

Eaton CorporationTransmission DivisionTechnical Service Dept.P.O. Box 4013Kalamazoo, Michigan 49003

PAGE T O O L HOW OBTAINED

Made from Fuller TransmissionPrint T-11938Tension Spring Driver3 8

Made from Fuller TransmissionPrint T-22823Auxiliary Section Hanger Bracket46

Made from Stop Nut andFlat Steel Stock4 6 Output Shaft Hanger Bracket

5 0 Snap Ring Pliers Tool Supplier

Made from Fuller TransmissionPrint T-10325Bearing Puller w/Set Screw51

Bearing Pullers (Jaw-Type) Tool Supplier5 2

Made from Fuller TransmissionPrint T-18088-236 3 Oil Seal Driver

Made from Fuller TransmissionPrint Series T-180426 9 Bearing Drivers (Flanged-End)

Impact Puller (1/2-13 Threaded End) Tool Supplier7 7

1 0 2 Made from Fuller TransmissionPrint T-22247Countershaft Support Tool

Torque Wrench, 1000 Lbs./Ft. Capacity Tool Supplier1 1 9

13

Page 17: Fuller Heavy Duty Transmissions TRSM0880...Service Manual Fuller Heavy Duty Transmissions TRSM0880 October 2007 For parts or service call us Pro Gear & Transmission, Inc. 1 (877) 776-4600

PREVENTIVE MAINTENANCE

14

Page 18: Fuller Heavy Duty Transmissions TRSM0880...Service Manual Fuller Heavy Duty Transmissions TRSM0880 October 2007 For parts or service call us Pro Gear & Transmission, Inc. 1 (877) 776-4600

PREVENTIVE MAINTENANCE

PREVENTIVE MAINTENANCE CHECK CHARTCHECKS WITHOUT PARTIALDISASSEMBLY OF CHASSIS OR CAB

1.

2.

3.

4.

5.

6.

7.

8.

Air System and Connectionsa. Check for leaks, worn air lines, loose con-

nections and capscrews. See AIR SYSTEM.

Clutch Housing Mountinga. Check all capscrews of clutch housing for

looseness.

Clutch Release Bearing (Not Shown)a. Remove hand hole cover and check radial

and axial clearance in release bearing.b. Check relative position of thrust surface of

release bearing with thrust sleeve on push-type clutches.

Clutch Pedal Shaft and Boresa. Pry upward on shafts to check wear.b. If excessive movement is found, remove

clutch release mechanism and check bush-ings in bores and wear on shafts.

Lubricanta. Change at specified service intervals.b. Use only the types and grades as recom-

mended. See LUBRICATION.

Filler and Drain Plugsa. Remove filler plugs and check level of lubri-

cant at specified intervals. Tighten filler anddrain plugs securely.

Capscrews and Gasketsa. Check all capscrews, especially those on

PTO covers and rear bearing covers forlooseness which would cause oil leakage.See TORQUE RECOMMENDATIONS.

b. Check PTO opening and rear bearing coversfor oil leakage due to faulty gasket.

Gear Shift Levera. Check for looseness and free play in hous-

ing. If lever is loose in housing, proceedwith Check No. 9.

9. Gear Shift Lever Housing Assemblya. Remove air lines at slave valve and remove

the gear shift lever housing assembly fromtransmission.

b. Check tension spring and washer for setand wear.

c. Check the gear shift lever spade pin andslot for wear.

d. Check bottom end of gear shift lever forwear and check slot of yokes and blocks inshift bar housing for wear at contact pointswith shift lever.

CHECKS WITH DRIVE LINE DROPPED

10. Universal Joint Companion Flangeor Yoke Nuta. Check for tightness. Tighten to recom-

mended torque.

11. Output Shaft (Not Shown)a. Pry upward against output shaft to check

radial clearance in mainshaft rear bearing.

CHECKS WITH UNIVERSAL JOINTCOMPANION FLANGE OR YOKEREMOVED

NOTE: If necessary, use solvent and shop rag toclean sealing surface of companion flange oryoke. DO NOT USE CROCUS CLOTH, EMERYPAPER OR OTHER ABRASIVE MATERIALSTHAT WILL MAR SURFACE FINISH.

12. Splines on Output Shaft(Not Shown)a. Check for wear from movement and chuck-

ing action of the universal joint companionflange or yoke.

13. Mainshaft Rear Bearing Covera. Check oil seal for wear.

15

Page 19: Fuller Heavy Duty Transmissions TRSM0880...Service Manual Fuller Heavy Duty Transmissions TRSM0880 October 2007 For parts or service call us Pro Gear & Transmission, Inc. 1 (877) 776-4600

PRECAUTIONSDisassembly

It is assumed in the detailed disassembly instructions that the lubricant has been drained from transmission,the necessary linkage and air lines disconnected and the transmission has been removed from vehicle chassis.Removal of the gear shift lever housing assembly (or remote control assembly) is included in the detailed in-structions (Disassembly and Reassembly—Shifting Controls); however, this assembly MUST be detached fromshift bar housing before transmission can be removed.

FOLLOW CLOSELY EACH PROCEDURE IN THE DETAILED INSTRUCTIONS. MAKING USE OF THE TEXT. ILLUS-TRATIONS AND PHOTOGRAPHS PROVIDED.

1 BEARINGS — Carefully wash and relubricate allreusable bearings as removed and protectivelywrap until ready for use. Remove bearings plannedto be reused with pullers designed for this pur-pose.

2. ASSEMBLIES — When disassembling the variousassemblies, such as the mainshaft, countershaft,and shift bar housing, lay all parts on a cleanbench in the same sequence as removed. This pro-cedure will simplify reassembly and reduce thepossibility of losing parts.

3. SNAP RINGS — Remove snap rings with Pliers de-

4

signed for this purpose. Snap rings removed in thismanner can be reused, if they are not sprung orloose.

INPUT SHAFT — The input shaft can be removed

5.

tershafts, mainshaft, or main drive gear. Specialprocedures are required and provided in this man-ual.

CLEANLINESS — Provide a clean place to work. Itis important that no dirt or foreign material entersthe unit during repairs, Dirt is an abrasive and candamage bearings. It is always good practice toclean the outside of the unit before starting theplanned disassembly.

6. WHEN USING TOOLS TO MOVE PARTS — Alwaysapply force to shafts, housings, etc, with restraint.Movement of some parts is restricted. Never applyforce to the part being driven after it stops solidly.The use of soft hammers, bars and mauls for alldisassembly work is recommended.

from transmission without removing the coun-

InspectionBefore reassembling the transmission, check each part carefully for abnormal or excessive wear and damage todetermine reuse or replacement. When replacement is necessary, use only genuine Fuller Transmission parts toassure continued performance and extended life from your unit.

Since the cost of a new part is generally a small fraction of the total cost of downtime and labor, avoid reus-ing a questionable part which could lead to additional repairs and expense soon after initial reassembly. To aidin determining the reuse or replacement of any transmission part, consideration should also be given to theunit’s history, mileage, application, etc.

Recommended inspection procedures are provided in the following checklist.

A. BEARINGS B. GEARS1.

2 .

3 .4 .

Wash all bearings in clean solvent. Checkballs, rollers and raceways for pitting, discol-oration, and spalled areas. Replace bearingsthat are pitted, discolored, or spalled.

Lubricate bearings that are not pitted, discol-ored, or spalled and check for axial and radialclearances.Replace bearings with excessive clearances.

Check bearing f i ts. Bearing inner racesshould be tight to shaft; outer races slightlytight to slightly loose in case bore. If bearingspins freely in bore, however, case should bereplaced.

1. Check gear teeth for frosting and pitting.Frosting of gear tooth faces present no threatof transmission failure. Often in continuedoperation of the unit, frosted gears will “heal”and not progress to the pitting stage. And inmost cases, gears with light to moderate pit-ted teeth have considerable gear life remain-ing and can be reused. But gears withadvanced stage pitting should be replaced.

2. Check for gears with clutching teeth abnor-mally worn, tapered, or reduced in lengthfrom clashing in shifting. Replace gearsfound in any of these conditions.

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PRECAUTIONSInspection (cont’d.)

3. Check axial clearance of gears. Where exces-sive clearance is found, check gear snap ring,washer, spacer, and gear hub for excessivewear. Maintain .005” to .012” axial clearancebetween mainshaft gears.

C. SPLINES1. Check splines on all shafts for abnormal wear.

If sliding clutch gears, companion flange, orclutch hub have worn into the sides of thesplines, replace the specific shaft affected.

D. TOLERANCE WASHERS1. Check surfaces of all tolerance washers.

Washers scored or reduced in thicknessshould be replaced.

E. REVERSE IDLER GEAR ASSEMBLIES1. Check for excessive wear from action of roller

bearings.

F. GRAY IRON PARTS1. Check all gray iron parts for cracks and breaks.

Replace parts found to be damaged.

G. CLUTCH RELEASE PARTS1. Check clutch release parts. Replace yokes

worn at cam surfaces and bearing carrierworn at contact pads.

2. Check pedal shafts. Replace those worn atbushing surfaces.

H. SHIFT BAR HOUSING ASSEMBLY1.

2.

3.

4.

Check for wear on shift yokes and blocks atpads and lever slot. Replace excessively wornparts.

Check yokes for correct alignment. Replacesprung yokes.Check Iockscrews in yokes and blocks.Tighten and rewire those found loose.

If housing has been disassembled, checkneutral notches of shift bars for wear from in-terlock balls.

1. GEAR SHIFT LEVER HOUSINGASSEMBLY1. Check spring tension on shift lever. Replace

tension spring and washer if lever moves toof reel y.

2. If housing is disassembled, check spade pinand corresponding slot in lever for wear. Re-place both parts if excessively worn.

J. BEARING COVERS1. Check covers for wear from thrust of adjacent

bearing. Replace covers damaged from thrustof bearing outer race.

2. Check bores of covers for wear. Replacethose worn oversize.

K. OIL RETURN THREADSAND SEALS1. Check oil return threads in front bearing

cover. If sealing action of threads has beendestroyed by contact with input shaft, replacebearing cover.

2. Check oil seal in rear bearing cover If sealingaction of lip has been destroyed, replace seal.

L. SLIDING CLUTCHES1. Check all shift yokes and yoke slots in sliding

clutches for extreme wear or discolorationfrom heat.

2. Check engaging teeth of sliding clutches forpartial engagement pattern.

M. SYNCHRONIZER ASSEMBLY1. Check synchronizer for burrs, uneven and ex-

cessive wear at contact surface, and metalparticles.

2. Check blocker pins for excessive wear orlooseness.

3. Check synchronizer contact surfaces on theauxiliary drive and low range gears for exces-sive wear.

N. O-RINGS1. Check all O-rings for cracks or distortion. Re-

place if worn.

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PRECAUTIONS—

Reassembly

Make sure that interiors of case and housings are clean. It is important that dirt and other foreign materials bekept out of the transmission during reassembly. Dirt is an abrasive and can damage polished surfaces ofbearings and washers. Use certain precautions, as listed below, during reassembly.

1.

2.

3.

4.

5.

GASKETS — Use new gaskets throughout thetransmission as it is being rebuilt. Make sure allgaskets are installed. An omission of any gasketcan result in oil leakage or misalignment ofbearing covers.

CAPSCREWS — To prevent oil leakage, use Loctite242 thread sealant on all capscrews. For torqueratings, see TORQUE RECOMMENDATIONS.

O-RINGS — Lubricate all O-rings with silicone lu-bricant.ASSEMBLY — Refer to the illustrations provided inthe detailed disassembly instructions as a guideto reassembly.

INITIAL LUBRICATION — Coat all limit washersand splines of shafts with Lubriplate during reas-sembly to prevent scoring and galling of suchparts.

6.

7.

8.

AXIAL CLEARANCES — Maintain original axialclearances of .005” to .012” for mainshaft gears.

BEARINGS — Use of flanged-end bearing drivers isrecommended for the installation of bearings.These special drivers apply equal force to bothbearing races, preventing damage to balls/rollersand races while maintaining correct bearing align-ment with bore and shaft. Avoid using a tubular orsleeve-type driver, whenever possible, as force isapplied to only one of the bearing races. SeeTOOL REFERENCE.

UNIVERSAL JOINT COMPANION FLANGE ORYOKE — Pull the companion flange or yoke tightlyinto place with the output shaft nut, using 450-500foot-pounds of torque. Make sure the speedome-ter drive gear or a replacement spacer of the samewidth has been installed. Failure to pull the com-panion flange or yoke tightly into place will permitthe output shaft to move axially with resultantdamage to the rear bearing.

IMPORTANT: REFER TO THE APPROPRIATE ILLUSTRATED PARTS LIST (SPECl-FIE D BY MODEL SERIES) TO ENSURE THAT PROPER PARTS AREUSED DURING REASSEMBLY OF THE TRANSMISSION.

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CHANGING INPUT SHAFTSpecial ProcedureIn some cases, it may become necessary to replace the input shaft due to excessive clutch wear on the splines.Except for removal of the shift bar housing assembly, the input shaft can be removed without further disas-sembly of the transmission. Removal of the clutch housing is optional.

NOTE: The following illustration and instructions pertain to changing the input shaft ONLY. To change the maindrive gear, complete disassembly of the front section is required.

Disassembly Reassembly

1.

2.

3.

4.

5.

6.

7.

Remove the gear shift lever housing assembly (orremote control assembly) from shift bar housing,and the shift bar housing assembly from transmis-sion case.

Remove the front bearing cover and gasket. If nec-essary, remove the O-ring from cover of models soequipped.

Remove the bearing retaining snap ring fromgroove in shaft.

Push down on input shaft to cock bearing in bore.Drive input shaft toward rear of transmission,through bearing as far as possible. Pull input shaftforward to expose snap ring of bearing.

Use pry bars to complete removal of bearing.

Remove drive gear spacer and snap ring.

Pull input shaft forward and out of drive gear andcase.

1.

2.

3.

4.

5.

6.

7.

8.

9.

If necessary, install bushing in pocket of inputshaft.

Install new input shaft into splines of main drivegear, just far enough to expose snap ring groovein I.D. of drive gear.

Install snap ring in snap ring groove inside drivegear.

Install drive gear spacer on input shaft.

Install drive gear bearing on input shaft and intocase bore.

Install bearing retainer snap ring.

Install front bearing cover and gasket. Make sureto align oil return hole in the case with hole incover.

To facilitate proper reinstallation of the shift barhousing assembly on case, make sure mainshaftsliding clutches are placed in the neutral posi-tion.

Reinstall the shift bar housing assembly, thefront bearing cover and all other parts and as-semblies previously removed, making sure to re-place the gaskets used.

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AIR SYSTEM

21

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AIR SYSTEMRANGE SHIFT AIR SYSTEMOperationThe Range Shift Air System consists of the air filter/regulator, slave valve, a Range Control Valve or Mas-ter Control Valve, range cylinder, f i t t ings andconnecting air lines. See Air System Schematics.

CONSTANT AIR from the air filter/regulator is sup-plied to the “S” or Supply Port of slave valve andpassed through to the INLET or “S” Port of controlvalve.

WHILE IN LO RANGE, the control valve is OPENand AIR is returned to slave valve at the “P” or EndPort. This signals the valve to supply AIR in line be-tween the LO Range or “L” Port of slave valve andthe LO Range Port of range cylinder housing. AIR re-ceived at this port moves the range piston to the rearand causes the auxiliary LO RANGE gear to becomeengaged.

WHILE IN HI RANGE, the control valve is CLOSEDand NO AIR is returned to the slave valve. Thissignals the slave valve to supply AIR in line betweenthe HI Range or “H” Port of valve and the HI RangePort of range cylinder cover. AIR received at this portmoves the range piston forward to engage the aux-iliary drive gear with sliding clutch and bypass theLO RANGE gear set.

Range shifts can be made ONLY when the gearshift lever is in, or passing through, neutral. Thus, therange desired can be PRESELECTED while the shiftlever is in a gear position. As the lever is movedthrough neutral, the actuating plunger in the shift barhousing releases the slave valve, allowing it to moveto the selected range position.

Trouble ShootingIf the transmission fails to make a range shift orshifts too slowly, the fault may be in the Range ShiftAir System or actuating components of the shift barhousing assembly.

To locate the trouble, the following checks shouldbe made with normal vehicle air pressure applied tothe system, but with the engine off.

NEVER WORK UNDER A VEHICLEWHILE ENGINE IS RUNNING as

personal injury may result from the sudden and unin-tended movement of vehicle under power. Alwaysplace transmission in the neutral position.

1. INCORRECT AIR LINE HOOK-UPS(See Air System Schematics)With the gear shift lever in neutral, move the con-trol that provides range selection UP and DOWN.A. If the air lines are crossed between control

valve and slave valve, there will be CON-STANT AIR flowing from the exhaust port ofcontrol valve WHILE IN HI RANGE.

2.

3.

4.

B. If the air lines are crossed between the slavevalve and range cylinder, the transmissiongearing will not correspond with the range se-lection. A LO RANGE selection will result in aHI RANGE engagement and vice versa.

AIR LEAKSWith the gear shift lever in neutral, coat all airlines and fittings with soapy water and check forleaks, moving the control that provides range se-lection UP and DOWN.

A.

B.

C.

D.

If there is a steady leak from the exhaust portof control valve, O-rings and/or related partsof the control valve are defective.

If there is a steady leak from breather of slavevalve: an O-ring in valve is defective, or thereis a leak past O-rings of range cylinder piston.

If transmission fails to shift into LO RANGEor is slow to make the range shift and thecase is pressurized, see Check No. 7 of thissection.

Tighten all loose connections and replace de-fective O-rings and parts.

AIR FILTER/REGULATOR(See illustration, Page 23.)With the gear shift lever in neutral, check thebreather of air fiiter/regulator assembly. Thereshould be NO AIR leaking from this port. Thecomplete assembly should be replaced if asteady leak is found.

Cut off the vehicle air supply to the air filter/regulator assembly, disconnect the air line at fit-ting in Supply OUTLET and install an air gage inopened port. Bring the vehicle air pressure to nor-mal. Regulated air pressure should be 57.5 to 62.5Psi.

DO NOT ADJUST SCREW AT BOTTOM OF REGU-LATOR TO OBTAIN CORRECT READINGS. Theair regulator has been PREADJUSTED within thecorrect operating limits. Any deviation from theselimits, especially with regulators that have beenin operation for some time, is likely to be causedby dirt or worn parts. If replacement or cleaningof the filter element does nothing to correct theair pressure readings, replace the complete as-sembly, as the air regulator is nonserviceable.

RANGE VALVE (See Page 24.)With the gear shift lever in neutral, select HIRANGE and disconnect the air line at the OUT-LET or “P” Port of control valve.

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AIR SYSTEM

5.

A.

B.

HI

When LO RANGE is selected, a steady blastof air will flow from opened port. Select HIRANGE to shut off air flow. This indicates thecontrol valve is operating properly. Reconnectair line.

If control valve does not operate properly,check for restrictions and air leaks. Leaks in-dicate defective or worn O-rings.

RANGE OPERATIONWith the gear shift lever in neutral, select LORANGE and disconnect the 1/4” I.D. air line at theport of range cylinder cover. Make sure this lineleads from the HI Range or “H” Port of slavevalve.

A.

B.

C.

When HI RANGE is selected, a steady blast ofair should flow from disconnected line. SelectLO RANGE to shut off air flow.

Move the shift lever to a gear position and se-lect HI RANGE. There should be NO AIR flow-ing from disconnected line. Return the gearshift lever to the neutral position. Thereshould now be a steady flow of air from dis-connected line. Select LO RANGE to shut offair flow and reconnect air line.

If the air system does not operate accord-ingly, the slave valve or actuating componentsof the shift bar housing assembly are defec-tive.

IMPORTANT: RANGE PRESELECTIONThe plunger pin, located in case bore betweenthe slave valve and actuating plunger of shift barhousing, prevents the slave valve from operatingwhile the shift lever is in a gear position. Whenthe lever is moved to or through the neutral po-sition, the pin is released and the slave valve be-comes operational.

6. LO RANGE OPERATIONWith the gear shift lever in neutral, select HIRANGE and disconnect the 1/4” I.D. air line at thefitting on range cylinder housing. Make sure thisline leads from the LO Range or “L” Port of slavevalve.

A.

B.

C.

When LO RANGE is selected, a steady blastof air should flow from disconnected line. Se-lect HI RANGE to shut off air flow.

Move the shift lever to a gear position and se-lect LO RANGE. There should be NO AIR flo-wing from disconnected line. Return the gearshift lever to the neutral position. Thereshould now be a steady flow of air from dis-connected line. Select HI RANGE to shut offair flow and reconnect air line.

If the air system does not operate accord-ingly, the slave valve or actuating componentsof the shift bar housing assembly are defec-tive.

7. RANGE CYLINDER (Refer to the followingillustration.)If any of the seals in the range cylinder assemblyare defective, the range shift will be affected.

A.

B.

C.

Leak at either O-ring A results in completefailure to make a range shift; steady flow ofair from breather of slave valve in bothranges.

Leak at gasket B results in a steady flow of airto atmosphere while in HI RANGE.

Leak at O-ring C results in a slow shift to LORANGE; pressurizing of transmission case.

Cut 7420-5/87

Range Cylinder Assembly—All Models

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AIR SYSTEMAIR FILTER/REGULATOR ASSEMBLY

—.The air filter contains a replaceable filter element which can be removed by turning out the end cap. This ele-ment should be cleaned at each oil change, or more often under high humidity conditions. Replace if necessary.

SLAVE VALVESPOPPET-TYPE

Refer to the drawing for disassembly and reassembly of the piston-type slave valve assemblies. Should the pop-pet-type slave valve assembly prove to be defective, replace the complete assembly, as it is non-serviceable.The actuating components used with these valve assemblies are non-interchangeable. Failure to use the correctplunger pin, spring, and alignment sleeve during installation on the transmission will cause hard shifting in LORange gears.

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AIR SYSTEM

ROADRANGER VALVE A-5013

Removal and Disassembly1.

2.

3.

4.

5.

6.

Remove two screws holding bottom cover to valveand slide cover down gearshift lever to expose airline fittings. Disconnect air lines.

Loosen jam nut and turn control valve from gearshift lever.

Pry medallion from recess in top cover.

Turn out the two screws to remove the top coverfrom valve housing.

Turn out the two screws in side of valve housing toseparate the housing.

Remove the Range Preelection Lever from lefthousing and the position balls and guide fromlever.

7. If necessary, remove the spring and O-ring frombores in left housing.

8. If necessary, remove the springs, O-ring andsleeve from bores in right housing.

Reassembly and Installation1.

2.

3.

Refer to the drawing for proper reassembly. Use aVERY SMALL amount of silicone lubricant on theO-rings to avoid clogging ports. A small amount ofgrease on the position springs and balls will helpto hold them in place during reassembly

Install control valve on gear shift lever and tightenjam nut.

Attach air lines and install bottom cover.

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AIR SYSTEMSPLITTER SHIFT AIR SYSTEM:Operation

In addition to the various components of the Range Shift AirSystem, the Splitter Shift Air System utilizes a splitter cylin-der and the Roadranger Valve A-4900. See Air SystemSchematics.

CONSTANT AIR from the air filter/regulator assembly issupplied to the splitter cylinder at the port on right side ofcylinder cover. The Insert valve installed in cover (seepage 27) provides the proper air flow needed to move thesplitter piston in the cylinder (rearward to engage rear auxil-iary drive gear for operation in direct; forward to engage thefront auxiliary drive gear for operation in overdrive).

WHILE IN HI OR LO RANGE, AIR needed to make thesplitter selection and complete the shift is supplied to theRoadranger valve from the tee fitting at the HI RANGE or“H” port of the slave valve. When the overdrive selection ismade, the AIR passes through the Roadranger valve and issupplied to the Left Port of cylinder cover.

With Splitter Control Button in the “DIRECT’’/REAR-WARD position, the “SP” Port of the Roadranger valve isCLOSED and NO AIR is supplied to the Left Port of theSplitter cylinder cover.

Button REARWARD(“SP” Port Closed)

While in HI RANGE the button can be moved FOR-WARD to operate in OVERDRIVE. The "SP” Port of valve isOPENED when overdrive is selected, supplying AIR to theLeft Port of the Splitter cylinder cover.

Button FORWARD(“SP” Port Opened)

Trouble Shooting

If the transmission fails to shift or shifts too slowly to or fromthe ‘(split” position, the fault may be in the Splitter Shift AirSystem or related components of the Range Shift Air Sys-tem.

To locate the trouble, the following checks should bemade with normal vehicle air pressure supplied to the sys-tem, but with the engine off.

NEVER WORK UNDER A VEHICLEWHILE ENGINE IS RUNNING as

personal injury may result from the sudden and unin-tended movement of vehicle under power. Alwaysplace transmission in the neutral position.

NOTE: It is assumed that correct PSI readings were

1.

2.

3.

obtained from the air filter/regulator and all airlines have been checked for leaks.

Air Supply (See Air System Schematics.)With the gear shift lever in neutral, select HI or LORANGE and loosen the connection at the "S“ Port ofthe Roadranger Valve until it can be determined thatAIR is supplied to valve. Reconnect air line.

If there is NO AIR, check for a restriction in the air linebetween the Roadranger valve and slave valve. Makesure this line is connected to fitting at the supply Port ofslave valve.

Roadranger Valve (See Page 24 and Air SystemSchematics.)With the gear shift lever in neutral, disconnect the airline at the Left Port of splitter cylinder cover, makingsure this line leads from the "SP” Port of theRoadranger Valve.A. WHILE IN HI OR LO RANGE, move the Splitter

Control Button FORWARD. There should be AIRflowing from disconnected line. Move the buttonREARWARD to shut off air flow and reconnect airline.

B. If the preceding conditions do not exist, theRoadranger valve is defective, or there is a restric-tion in the air lines.

Splitter Cylinder. (Refer to the following illustra-tion.)If any of the seals in the splitter cylinder assembly aredefective, the splitter shift will be affected. The degreeof air lost will govern the degree of failure, from slowshifting to complete shift failure.A. Leak at O-ring A results in a slow shift to engage

rear auxiliary drive gear; pressurizing of transmis-sion case; auxiliary gearing can be disengaged.

25

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AIR SYSTEMB. Leak at O-ring B results in slow shifting or

complete failure to engage and disengagefront or rear auxiliary drive gearing; steadyflow of air from exhaust port of Roadrangervalve and/or cylinder cover when Splitter Con-trol Button is in the REARWARD position.

C. Leak at gasket C results in a slow shift to dis-engage rear auxiliary drive gear; steady flowof air to atmosphere.

4. Insert Valve (See Page 27).Any constant flow of air from exhaust port of cyl-inder cover usually indicates a faulty insert valve.Exhaust should occur ONLY BRIEFLY when Split-ter Control Button is moved REARWARD WHILEIN LO and HI RANGE.A faulty insert valve, leaking at the O-rings ofvalve O.D. or from inner seals results in constantair leak and shift failure. Two indications of defec-tive O-rings or seals are:A. CONSTANT AIR flowing from exhaust port of

cylinder cover.B. CONSTANT AIR flowing from Exhaust Port

“E” of control valve WHILE SPLITTER CON-TROL BUTTON IS REARWARD OR FORWARD(providing the control valve is operating pro-perly).

The three O-rings in position on valve O.D. can bereplaced. However, if an inner seal is damaged,the complete assembly MUST be replaced.

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AIR SYSTEMINSERT VALVE:(EQUIPPED WITH ROADRANGER VALVE A-5013)The insert valve is a self-contained 1-3/16" valve as-sembly located in the splitter cylinder cover. It CAN-

PORTSIGNAL LINE FROM

CONTROL VALVE“SP” PORT

RETAINING NUT

-INSERT VALVE

Cut 7441A-11/87 SUPPLY PORT

LOW RANGE AND HIGH RANGE DIRECT

NO AIR ON SIGNAL LINE

CONSTANT AIR

NOT be disassembled except for the three O-rings onouter diameter. The O-rings provide a stationary sealand do not move in cylinder.

When installing the insert valve in bottom edge ofcover, apply Fuller #71206 silicone lubricant or itsequivalent to O-rings and cylinder walls. Install valvein bore with flat surface to the outside. When install-ing the special valve retaining nut, apply Fuller#71204 adhesive/sealant or its equivalent to threadsand tighten. See TORQUE RECOMMENDATIONS.

Travel of the small insert valve piston is only 3/16”.

As shown in the illustrations below, when NO AIR isapplied to the top side of valve piston, CONSTANTAIR supplied from the regulator passes to theFRONTSIDE of cylinder piston, moving the yoke barbackward to engage the REAR AUXILIARY DRIVEGEAR (LO RANGE DIRECT AND HI RANGE DIRECT).The piston moves up to cut off air to the back side ofthe cylinder piston. This air is exhausted out the cyl-inder cover as the piston moves rearward.

When AIR is applied to top side of valve piston,through signal line, the piston moves down passingair through the bottom of insert valve to the front andbackside of the cylinder piston, moving the yoke barFORWARD engaging the FRONT AUXILIARY DRIVEGEAR (LO RANGE OVERDRIVE AND HI RANGEOVERDRIVE).

OVERDRIVE

33

Page 31: Fuller Heavy Duty Transmissions TRSM0880...Service Manual Fuller Heavy Duty Transmissions TRSM0880 October 2007 For parts or service call us Pro Gear & Transmission, Inc. 1 (877) 776-4600

3A-28 — Operation Guide—System Operation and Schematics

For all questionsconcerningremoval andreplacement,refer to EatonService and PartsLiterature.

Schematic

19470 or A-5000 Slave Valve

A-5000 Valve

19470 Valve

Slave ValveIdentification

LO

HI

PS

Air Filter/RegulatorAssembly

Range Cylinder Assembly

LO

HI

Constant Air

Air fromVehicleSource

Splitter CylinderAssembly

A-5013 RoadrangerValve

LO Range L

RTO-15618 and RTLO-XX618 Models

TransmissionsFulerl ®

Rearward

S SPP

Down

No Air

Air toHousingPort

No AirSP

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System Operation and Schematics—Operation Guide — 3A-29

For all questionsconcerningremoval andreplacement,refer to EatonService and PartsLiterature.

Schematic

19470 or A-5000 Slave Valve

A-5000 Valve

19470 Valve

Slave ValveIdentification

LO

HI

PS

Air Filter/RegulatorAssembly

Range Cylinder Assembly

LO

HI

Constant Air

Air fromVehicleSource

Splitter CylinderAssembly SP

A-5013 RoadrangerValve

LO Range H

RTO-15618 and RTLO-XX618 Models

TransmissionsFulerl ®

Forward

S SPP

Down

No Air

Air toHousingPort

Page 33: Fuller Heavy Duty Transmissions TRSM0880...Service Manual Fuller Heavy Duty Transmissions TRSM0880 October 2007 For parts or service call us Pro Gear & Transmission, Inc. 1 (877) 776-4600

3A-30 — Operation Guide—System Operation and Schematics

For all questionsconcerningremoval andreplacement,refer to EatonService and PartsLiterature.

Schematic

19470 or A-5000 Slave Valve

LO

HI

PS

Air Filter/RegulatorAssembly

Range Cylinder Assembly

LO

HI

Constant Air

Air fromVehicleSource

Splitter CylinderAssembly SP

No Air

Air to CoverPort

A-5013 RoadrangerValve

HI Range L

RTO-15618 and RTLO-XX618 Models

TransmissionsFulerl ®

Rearward

S SPP

A-5000 Valve

19470 Valve

Slave ValveIdentification

Up

No Air

Page 34: Fuller Heavy Duty Transmissions TRSM0880...Service Manual Fuller Heavy Duty Transmissions TRSM0880 October 2007 For parts or service call us Pro Gear & Transmission, Inc. 1 (877) 776-4600

System Operation and Schematics—Operation Guide — 3A-31

For all questionsconcerningremoval andreplacement,refer to EatonService and PartsLiterature.

Schematic

19470 or A-5000 Slave Valve

A-5000 Valve

19470 Valve

Slave ValveIdentification

LO

HI

PS

Air Filter/RegulatorAssembly

Range Cylinder Assembly

LO

HI

Constant Air

Air fromVehicleSource

Splitter CylinderAssembly SP

No Air

Air to CoverPort

HI Range H

RTO-15618 and RTLO-XX618 Models

A-5013 RoadrangerValve

TransmissionsFulerl ®

Forward

S SPP

Up

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DISASSEMBLY SHIFTING CONTROLSAir System

A. Removal of Air Control

1. Disconnect the two air lines at the "S" or Supply Portand "P" or End Port of the slave valve on the transmis-sion case.

2. Remove the air line at the splitter cylinder cover.

NOTE: If desired, the gear shift lever housing assem-bly can now be removed from shift bar housing byremoving the four capscrews from the tower.

32

A-5013 (3) PortCONNECTORS

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DISASSEMBLY SHIFTING CONTROLS

3. Turn out the two mounting screws in the Roadrangervalve cover.

4. Slide the cover down to expose the valve ports anddisconnect the three air lines.

33

5. Loosen the jam nut and turn the valve and nut fromgear shift lever. Remove the valve cover, air linessheathing and O-rings from lever.

6. Disconnect and remove the 1/4" I.D. air line betweenSplitter Cylinder (inset) and air filter/regulator.

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DISASSEMBLY SHIFTING CONTROLS

7.

B.

Disconnect and remove the 1/4" I.D. air hoses be-tween the slave valve (inset) and air filter/regulatorassembly and range cylinder assembly.

Removal of Air

2. Turn out the four retaining capscrews and remove slavevalve from transmission case.

Filter/Regulator Assembly

3. Remove the hat-type alignment sleeve from bore inslave valve.

1. Turn out the two capscrews and remove the air filter/regulator assembly.

NOTE: For disassembly and reassembly of Air Filter/Regulator Assembly, see Page 23.

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DISASSEMBLY SHIFTING CONTROLS

4. Remove the spring and plunger pin from bore in trans-mission case. Remove slave valve gasket.

5. If necessary, remove the air line fittings from slavevalve.

NOTE: For disassembly and reassembly of piston-typeSlave Valve Assembly, see Page 23.

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DISASSEMBLY GEAR SHIFT LEVERASSEMBLY

Cut 7288D2/86

A. Removal and Disassembly

1. Turn out the four retaining capscrews, jar lightly tobreak gasket seal and remove the gear shift leverhousing and gasket from shift bar housing.

NOTE: Remote control housings are removed fromshift bar housing in the same manner. For disas-sembly and reassembly of LRC Assemblies, see 11-Iustrated Parts List No. P-541. For disassemblyand reassembly of SRC Assemblies, see illus-trated Parts List No. P-515.

2. Remove the boot from gear shift lever and secureassembly in vise with bottom of housing up. Use a largescrewdriver to twist between the spring and housing,forcing the spring from under the lugs in housing.Do one coil at a time.

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REASSEMBLY GEAR SHIFT LEVERASSEMBLY

spade pin in leaver ball slot and install the tensionspr ing washer over ba l l , d ished-s ide up .

3. Remove the tension spring, washer and gear shiftlever from housing.

1. With the gear shift lever housing secured in viseas suring disassembly, install the spade pin inbore of housing tower. If previously removed, in-stall the O-ring in tower groove.

4. Remove the spade pin from bore in housingtower. If necessary, remove the O-ring from

2. Position the gear shift lever in housing with

groove inside tower.

B. Reassembly of Gear Shift LeverHousing Assembly

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REASSEMBLY GEAR SHIFT LEVERASSEMBLY

3. Install the tension spring under lugs in housing, seatingone coil at a time. Use of a spring driving tool isrecommended.

4. Remove the assembly from vise and install therubber boot over gear shift lever and againsthousing.

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DISASSEMBLY AND REASSEMBLYSHIFT BAR HOUSINGSHIFT BAR HOUSING ASSEMBLY

A. Removal and Disassembly of the ShiftBar Housing Assembly

For models equipped with an Oil Pumpand/or Cooler Assembl ies, make sure todisconnect the lube line at the fitting on the shiftba r hous ing be fo re do ing the fo l l ow inginstructions

.

1.Turn out the retaining capscrews. Jar the top to 2. Tilt the assembly and remove the three sets of ten-

break the gasket seal and lift the shift bar housingfrom the transmission case. Remove the gasket.

sion springs and balls from the housing bores.

NOTE: During disassembly, lay all parts on aclean bench in order of removal from the housingto make reassembly easier. Shift bars not being re-moved must be kept in the neutral position or theinterlocking parts will lock the bars.

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DISASSEMBLY AND REASSEMBLYSHIFT BAR HOUSING

3. Secure the assembly in a vise with the plunger-side up. (The front of the housing will be to theleft.) For models so equipped, cut the lockwireand turn out the retaining capscrews to removethe oil trough from the housing.

NOTE: Start with the upper shift bar, move all barsto the right and out the rear boss bore. Cut thelockwire and remove the Iockscrews from each barjust before their removal.

4. Move the 3rd-4th speed shift bar to the housingrear, removing the yoke and block from the bar.

5. Move the 1st-2nd speed shift bar to the housingrear, removing the yoke and block from the bar. Asthe neutral notch in the bar clears the rear boss,remove the small interlock pin from the bore.

6. Remove the actuating plunger from the centerboss bore.

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DISASSEMBLY AND REASSEMBLYSHIFT BAR HOUSING

B. Reassembly of the Shift Bar HousingA s s e m b l y .

7. Move the short LO-Reverse speed shift bar to thehousing rear, remove the yoke from the bar. As theshift bar is removed from the housing, two 3/4 in-terlock balls will drop from the rear boss bottombore.

1. If previously removed, install the reverse-stopplunger in the LO-Reverse shift yoke, making surethe plunger is fully seated in the yoke slot bore.

8. If necessary, remove the plug, spring, and reverse-stop plunger from the LO-Reverse speed shiftyoke bore.

2. Install the spring in the yoke bore and on theplunger shank.

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DISASSEMBLY AND REASSEMBLYSHIFT BAR HOUSING

3. Install the plug and tighten to compress thespring (left). Back the plug out 1 - 1 1/2 turns andstake the plug through the small hole in the yoke(right.)

4. Secure the shift bar housing in a vise. Hold thenotched-end of the short LO-Reverse speed shiftbar, install the bar in the lower bore of the shift barhousing bosses. Install the yoke Iockscrew,tighten and wire securely.

NOTE: Start with the lower shift bore of the rearboss and move to the left (front of the housing).Keep bars in the neutral position during installa-tion. DO NOT EXCEED the recommended torqueratings for the yoke Iockscrews as over-tighteningmay distort the shift bars.

5. While holding the plunger shank, install the ac-tuating plunger in the center boss bore.

6. Install one 3/4" interlock ball in the rear boss topbore. This ball rides between LO-Reverse and 1st-2nd speed shift bars.

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DISASSEMBLY AND REASSEMBLYSHIFT BAR HOUSING

7. While holding the notched-end of the bar, installthe 1st-2nd speed shift bar in the housing bossmiddle bore. Position the shift block on the bar be-tween the center and rear bosses, and the yoke onthe bar between the front and center bosses, longhub to the housing front. Just before inserting thenotched-end of the rear boss bar, install the smallinterlock pin VERTICALLY in the neutral notchbore. Install the block and yoke Iockscrews,tighten, and lockwire securely.

NOTE: It is necessary that the interlock pin re-main in a vertical position during reassembly asrotation of the bar causes the pin to jam in the ten-sion spring bores.

9.

10.

While holding notched-end of the bar, install the3rd-4th speed shift bar in the housing boss upperbore, position the shift block on the bar betweenthe front and center bosses, long hub to thehousing rear. Install the block and yoke lock-screws, tighten, and lockwire securely.

For models so equipped, install the oil trough onthe housing. Tighten the capscrews and lockwiresecurely.

8. Install the other 3/4" interlock ball in the rear bosstop bore. This ball rides between the 1st-2nd andthe 3rd-4th speed shift bars.

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DISASSEMBLY AND REASSEMBLYSHIFT BAR HOUSING

11. Remove the assembly from the vise. Install thethree tension balls, one in each bore on the hous-ing top.

12. Install the three tension springs, one over eachball in the housing bores.

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REMOVAL - OUTPUT YOKE, AUXILIARYSECTION, AND CLUTCH HOUSING

A. Removal Output Yoke

1. Lock transmission by engaging two mainshaft gears

2. Pull yoke straight to the rear and off the output shaft.

with the mainshaft sliding clutches (inset.) Use a largebreaker bar to turn the output shaft nut from the outputshaft.

45

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REMOVAL - OUTPUT YOKE, AUXILIARYSECTION, AND CLUTCH HOUSINGB. Removal of Auxiliary Section

3. Remove capscrews and attach a chain hoist to

1. Turn out the nineteen capscrews that attach thetwo sections.

NOTE: There are three lengths of capscrews, notetheir location.

2. Insert three capscrews in the tapped holes ofhousing flange. Tighten evenly to move auxiliarysection to the rear and just far enough from frontsection to break gasket seal.

auxiliary section. Move the assembly to the rearuntil free of front section and remove gasket.

4. The auxiliary section can also be removed with thetransmission set in the vertical position. Block un-der the clutch housing to prevent damage to theinput shaft. Remove the retaining capscrews fromthe housing flange. Lift the assembly from thefront section. Remove the gasket.

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REMOVAL - OUTPUT YOKE, AUXILIARYSECTION, AND CLUTCH HOUSING

1. Remove the six capscrews, six nuts, and six lock-washers form studs that secure the clutch hous-ing to trasmission case.

2. . Jar the clutch housing with a rubber mallet tobreak gasket seal and pull from transmissioncase. Remove gasket.

48

D. Removal Clutch Housing

NOTE: For models so equipped remove theclutch release mechanism and/or clutch brakeassembly.

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DISASSEMBLY - AUXILIARY SECTION

A. Removal and Disassembly RearAuxiliary Drive Gear and Yoke

1. Cut the lockwire on the splitter yoke retaining bolt and 2. Remove the retaining bolt, splitter yoke and slidingloosen the bolt. clutch assembly from the auxiliary section.

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DISASSEMBLY - AUXILIARY SECTION

AUXILIARY MAINSHAFTASSEMBLY

WASHER

SPACER

b

GEAR

c

SLIDING REAR AUXILIARYCLUTCH DRIVE GEAR

Cut 6593 L-4/87

NUT

WASHER

3. Temporarily install an output yoke on the output shaftand secure it by placing a bar through the yoke.

4. Break loose the 15/16" retaining capscrew on the frontof the output shaft.

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DISASSEMBLY - AUXILIARY SECTION

AUXILIARY COUNTERSHAFTASSEMBLY

B. Removal of Auxiliary Countershafts

1. Remove the eight capscrews and countershaftbearing covers.

. .2. Remove snap rings from rear of both auxiliary

countershaft.

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DISASSEMBLY - AUXILIARY SECTION

3. Use a soft bar and maul to drive the countershaftforward far enough to partially unseat the rearbearings.

5. Use a bearing puller to remove bearings fromcountershaft.

Countershafts will fall as bearingsare removed.

6. Remove auxiliary countershaft from auxiliary sec-

4. Drive the countershaft to the rear to expose thebearing snap rings, but use caution so as not todamage the bearing inner race on each counter-shaft front.

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DISASSEMBLY - AUXILIARY SECTION

7. Remove the bearings from the countershaft rearbearing bores.

C. Removal Rear Auxiliary Drive GearAssembly

1. Remove the 15/16" capscrew and retainer thatholds the rear auxiliary drive gear on the outputshaf t .

8. If necessary, secure the assembly in a vise and re-move the bearing inner race from countershaftfront with jaw pullers.

NOTE: The vise used should be equipped withbrass jaws or wood blocks to prevent damage tothe countershaft.

2. Remove the rear auxiliary drive gear from the out-put shaft.

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DISASSEMBLY - AUXILIARY SECTION

RANGE CYLINDERASSEMBLY

*Note: Use lockwire atCut 6427-5/83 this position

D. Removal and Disassembly of RangeCylinder Assembly.

1. Remove the capscrews, range cylinder cover, andgasket.

2. Remove nut from yoke bar.

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DISASSEMBLY - AUXILIARY SECTION

3. Cut the lockwire. Remove the two 3/4" yoke lock-screws (inset).

4. Pull the yoke bar from the cylinder housing bore.

5. Remove the shift yoke and synchronizer assemblyfrom output shaft.

6. Remove the range piston from the cylinder bore. Ifnecessary, remove the O-rings from the positionI.D. and O.D. (inset).

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DISASSEMBLY - AUXILIARY SECTION

7. Remove capscrews and range cylinder housing.

8. If necessary, remove the small O-ring from therange cylinder housing bore.

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DISASSEMBLY - AUXILIARY SECTION

E. Disassembly Synchronizer Assembly

1. Place the larger LO range synchronizer ring on thebench. Cover the assembly with a shop rag to pre-vent losing the three springs released from thehigh range synchronizer at the pin locations. Pullthe HI range synchronizer from the blocker pins.

2. Remove the sliding clutch from the synchronizerring LO range pins.

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DISASSEMBLY-AUXILIARY SECTIONF. Removal and Disassembly Output Shaft

and Rear Bearing Assemblies.

1. Use a soft bar and maul to drive the output shaftforward and through the rear bearing assembly.

2. Remove the bearing inner spacer from the outputshaft.

3. Use the front face of the reduction gear as a base,press the output shaft through the bearing andgear. This frees the bearing, LO range gear, andthe splined washer.

4. Remove the stepped washer, LO range gear, andsplined washer from the shaft.

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DISASSEMBLY - AUXILIARY SECTIONG. Removal Splitter Cover

5. Remove the rear bearing retaining capscrews, rearbearing cover, and gasket from the auxiliary housing.The rear bearing cone drops from the housing borewhen the cover is removed. If necessary, remove theoil seal from the cover (inset).

1. Remove the capscrews from the splitter cylinder coverand remove the splitter cylinder cover and gasket fromthe auxiliary section case.

6. Remove the two bearing cups and spacer from thebearing bore.

2. If necessary, turn out the insert valve retaining nut andremove insert valve from bore.

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DISASSEMBLY„AUXILIARY SECTION

5. If necessary, remove the small O-ring from the cyl-inder housing bore.

3. Remove the splitter cylinder housing and yoke barfrom the auxiliary housing.

4. Pull the yoke bar from cylinder housing. If neces-sary, remove the O-ring from piston O.D. (inset).

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REASSEMBLY-AUXILIARY SECTION

A. Reassembly and Installation of

NOTE: Make sure magnetic plugs preinstalled inauxiliary housing.

1. IMPORTANT: Mark timing teeth on the LO Rangegear. A highly visible color of toolmaker's dye is

a.

b.

recommended.Mark any two adjacent gear teeth on LO Rangegear, front side.Then mark the two adjacent teeth which aredirectly opposite the first set marked. Thereshould be the same number of teeth betweenthe markings on each side of the gear.

2. Placed splined washer on output shaft shoulderfacing up as shown.

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REASSEMBLY-AUXILIARY SECTION

3. Install the LO Range gear on the output shaft,clutching teeth engaged with the splines down toengage the washer splines.

4. Install the LO Range gear rear washer on outputshaft and against gear, with chamfer side facingup.

5. Using a heat lamp or hot plate and oil heat the out-put shaft rear bearing and install on output shaft.Seat the bearing securely on shaft. Bearing canalso be installed using the appropriate driver.

NOTE: DO NOT HEAT BEARING ABOVE 275oF(136oC).

6. Install the bearing inner spacer on the outputshaft.

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REASSEMBLY - AUXILIARY SECTION

7. Install front bearing race in auxiliary housingbearing bore.

8. Install rear bearing race and rear bearing outerspacer in auxiliary housing bearing bore. Thebearing race will be at proper depth when raceshoulder is seated on top of bearing bore.

9. Place two mainshaft spacers or flat steel stock ofequivalent thickness (.190o) on the rear face of the

10.

LO range gear, 180o from each other. Install theauxiliary housing over the output shaft assemblyallowing the housing to rest on the blocking. -

Heat the rear bearing cone and install on theshaft, taper side down and inside the cup. Makesure the lip of the rear bearing cup is fully seatedon the housing with the bearing installed.

NOTE: DO NOT HEAT THE BEARING ABOVE275oF (136oC).

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REASSEMBLY - AUXILIARY SECTION

11.

12.

If previously removed, install the oil seal in therear bearing cover. The seal should be installedwith an oil seal installation tool. (Fuller part No.K-2091)

Position the corresponding new gasket oncover mounting surface.

13. Install the rear bearing cover on the auxiliaryhousing. Use the nylon collar and brass washerwith the capscrew at the chamfered hole whichintersects the speedometer bore (inset). Tightenthe capscrews to the recommended torque rat-ings.

NOTE: Because the collar becomes distortedwhen compressed, DO NOT REUSE OLD NYLONCOLLAR.

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REASSEMBLY - AUXILIARY SECTIONB. Reassembly and Installation of Splitter

Cylinder Assembly

1. If previously removed, install the smal O-ring inthe cylinder housing bore.

2. If removed, install the O-ring on the piston O.D.(left). Insert the yoke bar in the cylinder housingbore (right).

3. Position the corresponding new gasket on thehousing mounting surface and install the splittercylinder housing with the yoke bar in the auxiliaryhousing.

4. If previously removed, install the insert valve, flatend to the outside, and the valve retaining nut inthe bottom bore of the cylinder cover. Tighten torecommended torque ratings.

NOTE: Prior to installation of the insert valve,make sure the three O-rings on the valve O.D. arenot defective. Replace, if necessary.

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REASSEMBLY - AUXILIARY SECTION

2. Install the three springs in bores in HI range syn-chronizer ring.

5. Position corresponding gasket on the splitter cyl-inder housing. Position the splitter cylinder coverand install four capscrews, tighten to recom-mended torque.

C. Reassembly Synchronizer Assembly

3. Place the HI range synchronizer ring over pins ofLO speed synchronizer ring, seating springsagainst pins.

1. Place the larger LO range synchronizer ring facedown on bench with pins up. Place the slidingclutch, recessed side up, on pins of LO range syn-chronizer.

NOTE: Pins on LO range synchronizer must lineup with chamfered holes on bottom of slidingclutch.

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REASSEMBLY - AUXILIARY SECTION

4. Apply downward pressure to the HI range syn-chronizer ring WHILE TWISTING COUNTER-CLOCKWISE to compress the springs and fullyseat ring on blocker pins of LO range synchroni-ze r.

E. Reassembly Range Cylinder

1. Install O-ring in slot of small bore in cylinder. Ap-ply silicone to all O-rings (inset).

2. Position the corresponding new gasket on thehousing mounting surface (inset). Install the cylin-der housing in the rear bore of the auxiliary hous-ing, air fitting to the upper left. Tighten thecapscrews, to the recommended torque rating.

3. If previously removed, install the O-rings in the I.D.and O.D. of the range position.

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REASSEMBLY - AUXILIARY SECTION

4. Place range shift yoke in slot of synchronizer slid-ing clutch, threaded hub of yoke up and facing HIrange synchronizer.

. .

5. Place range shift yoke and synchronizer assemblyinto auxiliary housing, engaging splines of slidingclutch with output shaft, LO Range synchronizerto rear.

6. Insert threaded-end of yoke bar through yoke andinto the range cylinder housing bore, aligning thenotches in bar with yoke Iockscrew holes. Usecaution not to damage O-ring in range cylinder.

7. Install two 3/4" capscrews through bottom ofrange shift yoke and tighten to recommended tor-que, lockwire Iockscrews.

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REASSEMBLY-AUXILIARY SECTION

8. In cylinder housing bore, install the range pistonon yoke bar, flat side to the rear. Secure with nuttightened to recommended torque ratings (inset).

9. Position the corresponding new gasket on cowmounting surface (inset) and install the range cyl-index cover on housing, open port to the upperleft. Tighten capscrews to recommended torque

F. Installation Rear Auxiliary Drive Gear

1. Install rear auxiliary drive gear on output shaft,with clutching in teeth facing forward.

2. Install retainer with the retainer pin facing the syn-chronizer, match the pin with hole. Finger tightenthe capscrew.

rating.

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REASSEMBLY - AUXILIARY SECTION

3.

4.

Temporarily install the output yoke. Insert andhold a breaker bar to keep the output shaft fromturning.

Tighten the 15/16" capscrew on the rear auxiliary

G. Timing and Installation of AuxiliaryCountershaft Assemblies

.

drive gear to the recommended torque rating. Re-move the output yoke and breaker bar.WARNING: Make sure to use a new bolt with Loc-tite and apply 90-120 Ibs.-ft. of torque.

1. Use a proper bearing driver to seat the two coun-tershaft bearing races.

2. Install the bearings in the countershaft rearbearing bores.

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REASSEMBLY - AUXILIARY SECTION

3.

4.

Temporarily install the rear bearing covers, usetwo bolts and no gasket to hold the bearing inplace as the countershaft are driven into the aux-iliary housing.

IMPORTANT: On the LO Range gear of each aux-i l iary countershaft assembly locate the "O"stamped on one tooth. Align tooth with "O", withsmaller LO Range gear tooth and mark with ahighly visible color of toolmaker's dye.

5. Place the upper countershaft assembly into posi-tion in housing. Mesh the marked tooth of thecountershaft LO Range gear with either set of twomarked teeth of the LO Range gear.

6. With a soft bar and maul, drive the countershaftinto the auxiliary bearing.

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REASSEMBLY - AUXILIARY SECTION

7. Repeat the previous procedure with the lowercountershaft assembly, meshing the marked toothof the countershaft LO Range gear with the re-maining set of the two marked teeth of the LORange gear.

9. Position the corresponding new gasket on thecover mounting surface. Install both rear bearingcovers. Tighten the capscrews to the recom-mended torque rating.

8. Remove countershaft rear bearing covers and in-stall snap rings in the rear countershaft grooves.

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REASSEMBLY - AUXILIARY SECTIONH. Installation of Splitter Sliding Clutch

and Yoke

1. Place shift yoke in slot of splitter sliding clutch.Install clutch and yoke on splitter yoke bar.

2. Install the Iockscrew and tighten to recommendedtorque rating. Wire securely. Remove the auxiliarysection from the vise.

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DISASSEMBLY - FRONT SECTION

AUXILIARY DRIVE GEARASSEMBLY

*Note: Use lock wire atCut 6417 L -3 /87 this position

A. Removal Front Auxiliary Drive Gear

1. Cut lockwire from auxiliary bearing retainer ringcapscrews.

2. Remove snap ring from mainshaft rear groove.

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DISASSEMBLY - FRONT SECTION

3. Remove the splined washer from inside front auxiliarydrive gear assembly.

5. Remove front auxiliary drive gear from mainshaft.

4. Remove six capscrews from the auxiliary bearing re-tainer ring. Insert three puller screws in the speciallytapped holes of retainer ring. Tighten screws evenly topull the front auxiliary drive gear assembly from casebore.

6. Remove the spline d washer from the mainshaft alsoremove the front auxiliary drive gear retaining snap ringfrom the mainshaft.

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DISASSEMBLY-FRONT SECTION

Cut 6382-9 /80

B. Removal and Disassembly of LeftReverse Idler Gear Assembly

1. Move the mainshaft reverse gear as far to the rearas possible and remove the snap ring from I.D. ofgear.

2. Move the reverse gear forward and against the LOspeed gear, engaging the splines of mainshaftsliding clutch.

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DISASSEMBLY - FRONT SECTION

3. Using inside jaw pullers or impact puller, remove theauxiliary countershaft front bearing race from leftreverse idler gear bore. If necessary, repeat theprocedure for removing the auxiliary countershaft frontbearing race from right reverse idler gear bore.

5. Remove the pipe plug from rear of idler shaft and usean impact puller, 1/2"-13 threaded end, to remove shaftfrom case bore (inset).

4. Loosen the nut on the idler shaft, (inset). Remove thestop nut and washer from front of idler shaft.

6. As the idler shaft and idler plate are moved to the rear,remove the thrust washer, and gear from case. If nec-essary, remove the inner race from bearing andremove needle bearing from idler gear.

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DISASSEMBLY-FRONT SECTIONc. Removal of Countershaft Bearings

NOTE: In the following instructions, the frontand rear bearings from BOTH countershaft areremoved. For removal of the mainshaft assemblyfrom case, it is necessary to remove the bearingsfrom right countershaft ONLY.

1. Temporarily reinstall front auxiliary drive gear onmainshaft, remove snap ring from each counter-shaft rear groove.

3. Remove front bearing cover.

2. Remove six capscrews from front bearing cover. 4. From inside the case, use a soft bar and maul todrive the countershaft rear bearings to the rearand from case bores.

NOTE: This procedure will damage the bearingsand should not be attempted unless replacementof the bearings is planned.

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DISASSEMBLY-FRONT SECTION

5. Turn out the capscrew and remove the frontbearing retainer plate from each countershaft.

7. From the case rear, use a soft bar and maul todrive each countershaft forward to unseat thefront bearings from case bores and expose thebearing snap rings.

8. Use a bearing puller or pry bars to remove thecountershaft front bearings.

NOTE: The bearing inner race of models equippedwith roller-type front bearings will remain pressedon countershaft.

6. Use a soft bar and maul to drive each countershaftto the rear as far as possible. This will partially un-seat the front bearings.

NOTE: The soft bar used should have a flattenedend that is large enough so as not to damageholes for roll pin and capscrew.

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DISASSEMBLY-FRONT SECTION

D. Removal and Disassembly of MainshaftAssembly

1. Block the right countershaft assembly againstcase wall and pull the mainshaft assembly to therear to free pilot from input shaft pocket. Tilt frontof mainshaft up and lift the assembly from case(inset). Use caution as the reverse gear is free andcan fall from shaft.

2. Remove the 3rd-4th speed sliding clutch frommainshaft front.

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DISASSEMBLY-FRONT SECTION

3. Remove the reverse gear and spacer from main-shaft rear.

5. Turn the reverse gear limit washer to align itssplines with those of the mainshaft and removewasher.

4. From mainshaft rear, pull the key from mainshaftkey way.

NOTE: When removing limit washers, spacers andgears, note their location on mainshaft to facili-tate reassembly. Keep the internal-spl inedwashers and external-splined spacers with thegear from which they were removed. There isONLY one limit washer and one spacer belongingto each gear. 6. Remove the LO-Reverse speed sliding clutch from

mainshaft.

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DISASSEMBLY-FRONT SECTION

7. Using a small screwdriver, turn the limit washer inhub of LO speed gear to align its splines withthose of the mainshaft. Pull the LO speed gearfrom rear of mainshaft to remove limit washer,spacer, and gear. If necessary, remove the snapring from I.D. of gear (inset).

8. Remove each remaining gear, limit washer, spacer,and sliding clutch from mainshaft in the samemanner previously detailed. And, if necessary, re-move the snap ring from I.D. of each gear.

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DISASSEMBLY-FRONT SECTION

DRIVE GEARASSEMBLY

E. Input Shaft Removal

2. Use a rubber maul on the input shaft to cock thebearing in bore.

1. Remove the bearing retaining snap ring fromgroove in shaft.

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DISASSEMBLY-FRONT SECTION

3. Drive input shaft toward rear of transmission,through bearing as far as possible. Pull inputshaft.

5. Remove drive gear spacer, and snap ring (inset).

6. Pull input shaft forward and out of drive gear andcase.

4. Use pry bars or screwdriver to complete removalof bearing.

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DISASSEMBLY-FRONT SECTION

8. Remove main drive gear from case.

7. Check the bushing in pocket of input shaft , re-place if worn.

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DISASSEMBLY - FRONT SECTION

F. Removal and Disassembly ofCountershaft Assemblies

NOTE: Except for the PTO gears, the left and rightcountershaft assemblies are identical and disas-sembled in the same manner.

1. Move the right countershaft assembly to the rear as far. .

as possible so front of shaft can be removed from casebore and moved to the center of the case. Lift the

2. Remove the drive gear retaining snap ring from front ofeach countershaft.

assembly from case and repeat the procedure for leftcountershaft assembly.

NOTE: The left and right reverse idler gear assembliesare identical and disassembled in the same manner. Ifremoval and disassembly of this assembly is neces-sary, refer to Part B of this section.

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DISASSEMBLY - FRONT SECTION

3. Use the rear face of 3rd speed gear as a base,press the drive gear, PTO gear, and 3rd speed gearfrom each countershaft. This removes the frontbearing inner race from the countershaft.IMPORTANT: NEVER USE THE PTO GEAR AS APRESSING BASE. The narrow face width of thisgear makes it very susceptible to breakage.

4. Use a rear face of 2nd speed gear as a base and

5. If necessary, remove the keys and roll pin from thecountershaft.

G. Removal and Disassembly of RightReverse Idler Gear Assembly

NOTE: To remove the right reverse idler gear as-sembly see section B. The right and left reverseidler gear assemblies are disassembled in thesame manner.

press it off the countershaft.NOTE: You can not remove any more gears fromthe countershaft.

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DISASSEMBLY-FRONT SECTION

H. Removed and Disassembly of IntegralOil Pump

2. Remove three Allen head capscrews and washersthat retain the integral oil pump to front of case.

1. Straighten Iocktang on suction tube (inset), re-move suction tube from oil pump. If necessary re-move O-ring from suction tube.

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DISASSEMBLY-FRONT SECTION

3. Remove the integral oil pump from case. 5. Remove outer oil pump element from pump.

4. Remove integral oil pump retainer plate from case. 6. Remove drive gear retaining snap ring from driveshaft.

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DISASSEMBLY-FRONT SECTION

7. Remove drive gear from pump drive shaft

8. Remove key from drive shaft keyway.

9. Remove element retaining snap ring from driveshaft.

10. Remove internal oil pump element from driveshaft.

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DISASSEMBLY-FRONT SECTION

.

11. Remove two keys from drive shaft keyways.

12. Remove the drive shaft from integral oil pumphousing. If necessary, remove rear drive gear re-tention snap ring from drive shaft.

13. Remove relief valve roll pin from pump housing,relief valve spring can now be removed from re-

14. Remove relief valve from housing bore.

15. If necessary front case plug can be removed fromcase by driving the plug through front of case.Remove O-ring from O.D. of plug if necessary.

Iief valve housing bore (inset).

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DISASSEMBLY-FRONT SECTION1. Disassembly Auxiliary Drive Gear

Assembly

1. Remove the snap ring from hub of front auxiliarydrive gear.

3. If necessary, remove the O-rings from hub O.D. offront auxiliary drive gear.

2. Using the rear face of retainer ring as a base,press the drive through bearing.

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REASSEMBLY-FRONT SECTION

1. If previously removed, install the O-rings onextended front hub of front auxiliary drive gear.

2. Install the retainer ring on front auxiliary drivegear, snap ring groove facing front hub and awayfrom gear teeth.

3. Start the front auxiliary drive gear bearing on fronthub, bearing snap ring facing groove in retainerring. Using both hands, press the bearing on gearwith snap ring in groove of retainer ring (inset).

4. Install the snap ring in groove of front gear hub toretain bearing.

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REASSEMBLY-FRONT SECTIONB. Reassembly and Installation of Integral

Oil Pump

1. Replace O-ring on front case plug. Seat plug infront case bore with a maul.

2. Install relief valve in intergral oil pump housing asshown.

3. Install relief valve spring in oil pump housing.

4. Secure oil pump housing in a vice. Depress springin housing bore and drive relief valve retention rollpin into roll pin bore.

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REASSEMBLY-FRONT SECTION

5. If removed replace drive shaft snap ring on pumpdrive shaft and insert drive shaft through pumphousing bore as shown.

6. Install two keys on drive shaft (inset), and installintegral oil pump inner element on drive shaft,aligning keys on drive shaft with keyways on innerelement.

NOTE: Place round key in the round keyway;square key in the square keyway.

8.

7. Install inner element retention snap ring in driveshaft snap ring groove.

Install drive gear key in keyway of drive shaft (in-set), install drive gear on drive shaft aligning key-way on drive gear with key on drive shaft.

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REASSEMBLY-FRONT SECTION

9. Install outer drive gear retention snap ring ingroove of drive shaft.

11. Install integral oil pump retainer over alignmentpin inside of case, bore in retainer facing rear ofcase.

10. Install outer integral oil pump element over innerelement.

12. Install integral oil pump assembly in case align-ing front face of oil pump with retainer and align-ment pin.

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REASSEMBLY-FRONT SECTION. . .

13. Install three capscrews and washers throughfront of case and into pump housing, tightencapscrews to recommended torque.

14. Replace O-ring on suction tube and install tubeunder case rib and into integral oil pump. BendIocktang of suction tube over case rib.

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REASSEMBLY - FRONT SECTIONCASE ASSEMBLIESNOTE: Before starting reassembly, make sure the threemagnetic discs are solidly in place at bottom of case. Thesecan be secured to disc mounting surfaces with Scotch GripRubber Adhesive or equivalent adhesive.

C. Reassembly and Installation of RightReverse Idler Gear Assembly

2. Install the bearing inner race on idler shaft and insertshaft into case bore, threaded-end of shaft to the front.As the idler shaft is moved forward, install the reverseidler gear on shaft, long hub to the front and seating onbearing inner race. Position the thrust washer on shaftbetween the gear and support boss in case and con-tinue with movement of idler shaft forward into bore ofSupport boss.

1. If previously removed, thread pipe plug in rear of re-verse idler shaft and tighten. Install the thrust washer tothe end of the idler shaft.

NOTE: If previously removed, replace the needle bear-ing into bore of reverse idler gear.

3. Making sure that the reverse idler shaft is seated inbore of support boss and forward as far as possible,install the washer and stop nut on front of shaft. Tightennut to recommended torque rating.

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REASSEMBLY - FRONT SECTION

5. Install the OUTER RACE of auxiliary countershaftfront bearing into case bore and against idlerplate.

NOTE: The bearing INNER RACE is installed onfront of auxiliary countershaft and never withouter race.

D. Reassembly of Countershaft Assemblies

NOTE: Except for the PTO gears, the left andright countershaft assemblies are identical andreassembled in the same manner.

1. If previously removed, install the roll pin and keyin keyway of countershaft.

3. Press the 3rd speed gear on the countershaft, longhub of gear to countershaft front.

2. Align gear keyway with countershaft key andpress 2nd speed gear on the countershaft, longhub of gear to countershaft rear.

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REASSEMBLY - FRONT SECTION

2. Start the PTO gear onto countershaft, bullet-nose sideof teeth facing up and toward rear of shaft. Align key-way of drive gear with key in countershaft and pressBOTH gears onto shaft, long hub of drive gear againstPTO gear.

NOTE: The left countershaft assembly has a 47-toothPTO gear; the right countershaft assembly has a 45-tooth PTO gear.

3. To avoid confusion during installation, mark the end ofleft countershaft with an "L", the end of right counter-

4. Install the drive gear retaining snap ring in groove onfront of each countershaft.

5. Use a flanged-end driver to install bearing inner race oncountershaft, shoulder of race against shoulder of coun-tershaft.

shaft with an "R".

95

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REASSEMBLY - FRONT SECTIONE. Partial Installation of Countershaft

Assemblies

IMPORTANT: Mark the countershaft drive gear for timingpurposes. On the drive gear of each countershaft assem-bly, mark the tooth aligned with keyway of gear andstamped with an "O" for easy identification. A highly visiblecolor of toolmakers' dye is recommended for making timingmarks.

1. Place the left countershaft assembly into position incase, making sure that the "L"-marked assembly hasthe larger 47-tooth PTO gear. Place the right counter-shaft assembly into position in case, making sure thatthe "R"-marked assembly has the smaller 45-tooth PTOgear.

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REASSEMBLY-FRONT SECTIONF. Bearing Installation of Left Countershaft

Assembly

1. Move the left countershaft assembly to the rearand insert countershaft support tool or blockingto center shaft in rear case bore.

3. Center the front of left countershaft in bearing andmove the assembly forward.

2. Use a flanged-end bearing driver to start thebearing in case bore.

NOTE: The inner race of roller-type front bearingis pressed on front of countershaft.

4. Use a flanged-end bearing driver to completelyseat front bearing or bearing outer race in casebore.

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REASSEMBLY-FRONT SECTIONG. Reassembly, Installation and Timing of

Main Drive Gear Assembly

5. Position the retainer plate on front of left countershaft,roll pin in hole at end of shaft, and secure with capscrewtightening to recommended torque.

1. Install the snap ring in I.D. of main drive gear.

6. Remove countershaft support tool or blockingfrom rear case bore and install the left counter-shaft rear bearing with larger I.D. lead chamfer tothe front of shaft and install the snap ring ingroove at rear of left countershaft.

2. Mark the main drive gear for timing purposes.Mark any two adjacent teeth on drive gear and re-peat the procedure for the two adjacent teethdirectly opposite the first set marked. A highly vis-ible color of toolmakers' dye is recommended formaking timing marks.

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REASSEMBLY-FRONT SECTION

3. Mesh the marked tooth of left countershaft drivegear with either set of two marked teeth on maindrive gear. Slide the input shaft through the maindrive gear (inset).

5. Install drive gear bearing on input shaft, seatbearing into case bore with proper bearing driver.

6. Temporarily install the front bearing cover.

4. Install drive gear spacer. Install the bearing on theinput shaft with external snap ring to the outside(inset).

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REASSEMBLY-FRONT SECTION. . .

7. Use a soft bar and maul to drive the input shaftthrough bearing. Remove front bearing cover.

9. Install front bearing cover and gasket, makingsure to align the oil return hole in the case withhole in cover. Secure the front bearing cover oncase with six capscrews, tighten to recommendedtorque (inset).

8. Install bearing retainer snap ring.

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REASSEMBLY - FRONT SECTIONH. Reassembly and Partial Installation of

1.

2.

3.

Mainshaft AssemblyIf previously removed, install the correspondingsnap rings in I.D. of mainshaft gears.

Secure the mainshaft in a vise equipped withbrass jaws or wood blocks, pilot-end of shaftdown. If previously removed, install the roll pin inkeyway.

Install the 3rd speed gear limit washer on main-shaft, flat side of washer up. Rotate washer in the1st or bottom groove of mainshaft to align thesplines of washer with those of the mainshaft. in-stall the key in mainshaft keyway to lock washerin place.

4.

5.

Install the spacer on shaft against washer.

Install the 3rd speed gear on mainshaft, clutchingteeth down and engaged with external splines ofspacer.NOTE: Gear limit washers are internally splinedand locked to mainshaft by the key. Gear spacersare externally splined to engage with clutchingteeth in gear hubs. There is one limit washer andone spacer for each gear in the mainshaft as-sembly.

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REASSEMBLY—FRONT SECTION

Setting Correct AxialClearances For MainshaftGears

Axial Clearance (End-Play) Limits Are:.005’’ -.012” for all mainshaft gears

Washers are used to obtain the correct limits; sixthicknesses are available as follows:

LIMITS (INCH) COLOR CODE

.248 -.250 WHITE

.253 -.255 GREEN

.258 -.260 ORANGE

.263 -.265 PURPLE

.268 -,270 YELLOW

.273 -.275 BLACK* “PLUS RED”

*NOTE: New style tolerance washers come in a fullrange of tolerances as corresponding colors listedabove “plus red.” (Example: “Orange plus red” limitwasher has an inch limit thickness of .258-.260.)

Refer to Illustrated Parts Lists for washer part num-bers.

Always use the .248 -.250 tolerance washer (“White”or “white plus red”) in the reverse, LO and 2nd speedgear positions as shown at right.

IMPORTANT: REFER TO THE APPROPRIATEILLUSTRATED PARTS LIST(SPECIFIED BY MODEL SE-RIES) TO ENSURE THATPROPER PARTS ARE USEDDURING REASSEMBLY OF THETRANSMISSION.

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REASSEMBLY-FRONT SECTION

6. Install the 2nd speed gear on shaft against 3rdspeed gear, clutching teeth up.

7. Install the spacer in 2nd speed gear, engaging theexternal splines of spacer with clutching teeth ofgear.

8. Remove the key from keyway and install the 2ndspeed gear limit washer on mainshaft, flat side ofwasher down and against spacer. Rotate washer inthe 2nd groove of mainshaft to align the splines ofwasher with those of the mainshaft and reinsertkey in keyway to lock washer in place (inset).

9. Insert two large screwdrivers between the 2nd and3rd speed gears to check axial clearances. Applyslight downward pressure on screwdriver handlesto spread gears evenly. Making sure the gear hubsare parallel, insert a feeler gage between hubs.Correct axial clearance is less than the minimum.005" to .012" If the clearance is less than theminimum .005" tolerance, the limit washer in the2nd speed gear should be replaced by a thinnerlimit washer. This will increase the axial clearancebetween the gears. If the clearance checked isgreater than the maximum .012" tolerance, athicker limit washer should be installed in the 2ndspeed gear. This would decrease the axial clear-ance between the gears.

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REASSEMBLY-FRONT SECTION

10. Install the 1st-2nd speed sliding clutch, aligningthe missing internal spline of sliding clutch withkey in mainshaft.

11. Remove the key from keyway and install the 1stspeed gear limit washer on mainshaft, flat side ofwasher up. Rotate washer in the 2nd groove ofmainshaft to align the splines of washer withthose of the mainshaft and reinsert key in key-way to lock washer in place.

12. Install spacer and 1st speed gear on the main-shaft, clutching teeth down and engaged with en-ternal splines of spacer.

13. Install the LO speed gear on shaft against 1stspeed gear, clutching teeth up.

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REASSEMBLY-FRONT SECTION

14. Install the spacer in LO speed gear, engaging theexternal splines of spacer with clutching teeth of

16. Check axial clearances and make adjustments, ifnecessary, between the LO and 1st speed gearsas described in No. 9 of this section.

17. Install the LO-Reverse speed sliding clutch,aligning the missing internal spline of slidingclutch with key in mainshaft.

15. Remove the key from keyway and install the LOspeed gear limit washer on mainshaft, flat side ofwasher down and against spacer. Rotate washerin the 4th groove of mainshaft to align thesplines of washer with those of the mainshaftand reinsert key in keyway to lock washer inplace.

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REASSEMBLY - FRONT SECTION

18.

19.

Remove the key from keyway and install the re-verse gear limit washer on mainshaft, flat side ofwasher up. Rotate washer in the 5th groove ofmainshaft to align the splines of washer withthose of the mainshaft and reinsert key in key-way to lock washer in place.

Install the spacer on shaft against washer.

20. Install reverse gear on mainshaft. Engage theclutching teeth of gear with splines of spacerand sliding clutch and move the reverse gearagainst the LO speed gear.

NOTE: DO NOT REPLACE REVERSE GEAR lN-TERNAL SNAP RING AT THIS STEP

21. Remove the mainshaft assembly from vise. Alignthe missing internal spline of 3rd-4th speed slid-ing clutch with key in mainshaft and install onfront of shaft, engaging the external splines ofsliding clutch with clutching teeth of 3rd speedgear.

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REASSEMBLYÑFRONT SECTION

22. Block the right countershaft assembly againstcase wall and lower the mainshaft assembly intoposition with the reverse gear held against LOspeed gear and rear of shaft moved into casebore.

23. Move the pilot-end of mainshaft into pocketbushing of input shaft.

.24. With the reverse gear remaining against LO

speed gear, mesh the corresponding forwardspeed gears of left countershaft assembly.Check to make sure that marked tooth on leftcountershaft drive gear has remained in meshwith marked set of teeth on main drive gear.

25. Center rear of mainshaft in case bore and installthe auxiliary drive gear assembly on shaft, par-tially seating the bearing in bore. DO NOT COM-PLETE INSTALLATION AT THIS TIME.

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REASSEMBLYÑFRONT SECTION. Ò -

1. Remove blocking from right countershaft a s -sembly and place it parallel to mainshaft as-sembly. Mesh the marked tooth of r ightcountershaft drive gear with remaining set of twomarked teeth on main drive gear.

2. Insert countershaft support tool or blocking inrear bearing bore.

3. Position the front countershaft bearing in frontbearing bore. Use the proper bearing driver to setthe bearing (inset).

4. Install retainer washer and capscrew. Make sureto match roll pin in retainer with inner bearing,hole.

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REASSEMBLY - FRONT SECTION

5. Tighten capscrew to the recommended torque.

6. Position the countershaft rear bearing in rear bearingbore. Use the proper bearing driver to seat bearing inbore.

7. With bearing installation complete, install the snap ringin right countershaft rear groove.

8. Move the reverse gear to the rear on mainshaft and usea screwdriver to engage sliding clutches with all for-ward speed gears. A sliding clutch that will not engagewith a gear indicates the gear set is not in proper mesh.The bearings of the right countershaft would then needto be removed and the drive gear set retimed.

NOTE: Do not engage sliding clutches with more thanone gear at the same time. This will lock the gearingand prevent the mainshaft and countershaft assem-blies from rotating.

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REASSEMBLY - FRONT SECTIONJ. Reassembly and Installation of Left

Reverse Idler Gear Assembly

NOTE: Since the left and right reverse idler gearassemblies are identical, reassembly and installation ofthe left reverse idler gear assembly should beperformed at this time as described in Part C of thissection.

K. Completed Installation of Mainshaftand Auxiliary Drive Gear Assemblies

3. Install the snap ring in hub of reverse gear and movethe reverse gear forward on mainshaft and into properposition in case.

1. Move the reverse gear to the rear as far as possible,meshing teeth of gear with those of the reverse idlergears.

4. Install snap ring on mainshaft snap ring groove.

2. Align the external splines of spacer with clutching teethof reverse gear and move spacer forward on themainshaft and into reverse gear.

5. Install splined washer on mainshaft splines behind re-verse gear.

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REASSEMBLY - FRONT SECTION

6. Reinstall the front auxiliary drive gear assembly on rearof mainshaft. Use a flanged-end driver and maul to setbearing in case bore.

7. Align the six capscrew holes in retainer with the tappedholes in case and install capscrews. Tighten to recom-mended torque ratings and lockwire the capscrews ingroups of three.

8. Install splines washer on mainshaft splines behind aux-iliary drive gear.

9. Install the snap ring in groove at end of mainshaft.

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INSTALLATION - CLUTCH HOUSING, OUTPUT YOKE,AUXILIARY SECTION AND SHIMMING PROCEDUREA. Installation of Clutch Housing

3. Install the six nuts with washers or lockwasherson studs and tighten. SEE TORQUE RECOMMEN-DATIONS.

4. For models so equipped, install the clutch releasemechanism and/or clutch brake assembly.

1. Position the corresponding new gasket on hous-ing mounting surface and install the clutch hous-ing on front case, piloting on the six studs andrive gear bearing cover.

2. Install the six capscrews with lockwashers andtighten. See TORQUE RECOMMENDATIONS.

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INSTALLATION - CLUTCH HOUSING,AUXILIARY SECTION, &OUTPUT YOKE.B. Installation of Auxiliary Section

NOTE: Make sure the bearing inner race is in-stalled on front of each auxiliary countershaftBEFORE proceeding with the following.

1. Attach a chain hoist to auxiliary. Move the as-sembly evenly into rear of front case, piloting it onthe dowel pins. As assembly is moved forward,the countershaft drive gears will mesh with theauxiliary drive gear.

2. Install the retaining capscrews in flange of aux-iliary plate/housing and tighten to secure the aux-iliary section to the front section. See TORQUERECOMMENDATIONS.

3. The auxiliary section can be installed with trans-mission set in the vertical position. Block underthe clutch housing to prevent damage to the inputshaft, position the corresponding new gasket onplate/housing mounting surface and lower the as-sembly onto rear of front case. Install the retainingcapscrews and tighten securely. See TORQUERECOMMENDATIONS.

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INSTALLATION - CLUTCH HOUSING,AUXILIARY SECTION, & OUTPUT YOKE.C. Installation Output Yoke

1. Install yoke slinger on output yoke with properslinger driver, as shown.

)2. For models so equipped, install speedomete rdrive gear or replacement spacer in position onoutput shaft (inset). Install the companion flangeor yoke on splines of output shaft and move intorear bearing cover.

.

3. Lock the transmission by engaging two mainshaftgears with sliding clutches. Install the washer andnut on output shaft (inset).

4. Tighten the nut using the recommended torqueratings.

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INSTALLATION-SHIFTING CONTROLSA. Installation Shift Bar Housing

1. Place all three mainshaft sliding clutches in the neutralposition. Install shift bar housing gasket in positionclutches.

2. With all three shift yokes in the neutral position, installthe shift bar housing assembly on case, fitting the shiftyokes into the slots of the corresponding slidingclutches.

3. Install the thirteen capscrews in shift bar housing andtighten to recommended torque rating.

NOTE: There are two sizes of capscrews. The 1/2"capscrews are used with lifting eyes.

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INSTALLATION-SHIFTING CONTROLSGEAR SHIFT LEVER HOUSING ASSEMBLYB. Installation Gear Shift Lever Housing

Assembly

1. Check the shift bar housing assembly to make sure Install the four retaining capscrews in housingflange and tighten to recommended torque to se-cure the assembly to shift bar housing.

shift block and yoke notches are aligned in the neutralposition. Install the gasket and gear shift lever housing as-sembly on shift bar housing, fitting the lever intothe shift block and yoke notches

2.

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INSTALLATION-SHIFTING CONTROLSC. Installation of Slave Valve

1. If previously removed, install the air line fittingson slave valve.

3. Install the hat-type alignment sleeve in bore ofslave valve.

2. Install the spring on shank of actuating pin and in-sert in bore of transmission case.

4. Position gasket on valve mounting surface (inset)and install the slave valve on case, inserting theend of actuating pin into alignment sleeve. Securethe valve to case with four capscrews tightenevenly to recommended torque rating.

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INSTALLATION-SHIFTING CONTROLSD. Installation of Air Lines and Air Filter

Regulator

NOTE: Recommended sealant for fittings isFuller Sealant part number 71205.

1. Connect the 1/4" I.D. air hose between the slavevalve (inset) and the HI Range Port of the rangecylinder. Tighten fittings securely.

3. Position the air filter/regulator on the auxiliaryhousing rear and install the two retaining cap-screws. Tighten to recommended torque.

2. Connect the 1/4" I.D. air hose between the slavevalve (inset) and the LO Range Port of the rangecylinder. Tighten fittings securely.

4. Connect the 1/4" I.D. air hose between the slavevalve (inset) and the air filter/regulator. Tighten fit-tings securely.

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INSTALLATION-SHIFTING CONTROLS

5. Connect the 1/4" I.D. air hose between the air filter/regulator (inset) and the splitter cylinder cover.Tighten fittings securely.

7. Install the jam nut on the shift lever. Thread theRoadranger valve on shift lever and secure bytightening jam nut against valve.

6. Install the Roadranger valve cover and the threeair lines.

8. Connect the red air line to the "S" or Supply Port, andthe black air line to the "P" or End Port of the slavevalve. Tighten fittings securely.

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INSTALLATION-SHIFTING CONTROLS

9. Connect the red air line to the "S" or Supply Port andthe black air line to the "P" Port on the Roadrangervalve. Tighten fittings securely.

11. Position valve cover on Roadranger valve and se-cure by tightening the two mounting screws incover,

10. Connect the blue air line to the "SP" or Splitter Port onthe Roadranger valve (inset). Connect the blue air lineto the splitter cylinder cover. Tighten fittings securely.

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Page 129: Fuller Heavy Duty Transmissions TRSM0880...Service Manual Fuller Heavy Duty Transmissions TRSM0880 October 2007 For parts or service call us Pro Gear & Transmission, Inc. 1 (877) 776-4600

Copyright Eaton Corporation, 2012. Eaton hereby grant their customers, vendors, or distributors permission to freely copy, reproduce and/or distribute this document in printed format. It may be copied only in its entirety without any changes or modifications. THIS INFORMATION IS NOT INTENDED FOR SALE OR RESALE, AND THIS NOTICE MUST REMAIN ON ALL COPIES.

Note: Features and specifications listed in this document are subject to change without notice and represent the maximum capabilities of the software and products with all options installed. Although every attempt has been made to ensure the accuracy of information contained within, Eaton makes no representation about the completeness, correctness or accuracy and assumes no responsibility for any errors or omissions. Features and functionality may vary depending on selected options.

For spec’ing or service assistance, call 1-800-826-HELP (4357) or visit www.eaton.com/roadranger.In Mexico, call 001-800-826-4357.

Eaton CorporationVehicle GroupP.O. Box 4013Kalamazoo, MI 49003 USA800-826-HELP (4357)www.eaton.com/roadranger

Printed in USA

Roadranger: Eaton and trusted partners providing the best products and services in the industry, ensuring more time on the road.

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For parts or service call us Pro Gear & Transmission, Inc.

1 (877) 776-4600

(407) 872-1901

[email protected]

906 W. Gore St.

Orlando, FL 32805