15
INSTRUCTIONS-PARTS LIST .e 307m4= Rev. C ORAC0 . SUPERSEDES A This manual contains IMPORTANT WARNINGS and INSTRUCTIONS READ AND RETAIN FOR REFERENCE Gna Powered Airless SUDD~V Pump 45~W psi (310 bar) MAXIMUM WORKING PRESSURE Model 226-961 Series B Less hose, swivel, gun and tip. . .. ., ,. '.. . . . .: GRACO INC. P.O. Box 1441 MINNEAPOLIS, MN 55440-1444 @COPYRIGHT 1981 GRACO INC.

307465C Gna Powered Airless Supply Pump GH733 HYDRA-SPRAY€¦ · mum working pressure rating of at least 4500 pai (310 barl. which is the maximum working pressure of the GH 723

  • Upload
    others

  • View
    0

  • Download
    0

Embed Size (px)

Citation preview

Page 1: 307465C Gna Powered Airless Supply Pump GH733 HYDRA-SPRAY€¦ · mum working pressure rating of at least 4500 pai (310 barl. which is the maximum working pressure of the GH 723

INSTRUCTIONS-PARTS LIST .e 307m4= Rev. C ORAC0 . SUPERSEDES A

This manual contains IMPORTANT WARNINGS and INSTRUCTIONS

READ AND RETAIN FOR REFERENCE

Gna Powered Airless SUDD~V Pump

45~W psi (310 bar) MAXIMUM WORKING PRESSURE

Model 226-961 Series B Less hose, swivel, gun and tip.

. . . ., ,. '.. . . . .:

GRACO INC. P.O. Box 1441 MINNEAPOLIS, MN 55440-1444 @COPYRIGHT 1981 GRACO INC.

Page 2: 307465C Gna Powered Airless Supply Pump GH733 HYDRA-SPRAY€¦ · mum working pressure rating of at least 4500 pai (310 barl. which is the maximum working pressure of the GH 723

WA RNlNG HIGH PRESSURE SPRAY CAN CAUSE SERIOUS INJURY.

FOR PROFESSIONAL USE ONLY. OBSERVE ALL WARNINGS.

Read and understand.all instruction manuals before operating equipment.

' INJECTION HAZARD

Fluids under high pressure from spray or leaks can penetrate the skin and cause extremely serious injury, Including the need for amputation.

NEVER point the spray gun et anyone or any part of the body

NEVER put hand or fingers over the spray tip.

NEVER try to stop or deflect leaks with your hand or body

ALWAYS have the tip guard in place when spraying.

MEDICAL TREATMENT If any fluid appears to penetrate your skin, get

EMERGENCY MEDICAL CARE AT ONCE. DO NOT TREAT AS A SIMPLE CUT.

Tell the doctor exactly what fluid was iniected. For treatment instruc- -. ~~~

tions have your doctor call the NATIONAL POISON CENTER NETWORK

i4121681-6669

USE EXTREME CARE WHEN CLEANING TIPS AND SERVICING.

Always follow this pressure relief procedure when shutting off the unit for any reason: shut off the engine. trigger the spray gun. engage fhe trigger EafeQ, close the en ine fuel cock and 0 en the drain VE~VE.

SPRAY GUN SAFETY

When spray gun or dispensing valve is not ECtUaib spraying. ahays set the gun safeQ latch in the Closed or "SAFE position, making the trigger inoperative.

00 NOT REMOVE OR MODIFY any part of the gun.

Check diffuser operation by using the lowest Pmible spray pressure with spray tip removed. Trigger gun end maintain firm metal to metal contact belwean aun and metal waste container. Fluid emitted should be diffused into a i irregular streern

CHECK OPERATION OF ALL GUN SAFETY DEVICES BEFORE EACH USE.

AVOID COMPONENT RUPTURE

Always be sure that all components used with this unit have e max- mum working pressure rating of at least 4500 pai (310 barl. which is the maximum working pressure of the GH 723. NEVER alter or modify the equipment.

Before each use, check hoses for weak, worn or damaged conditions that may be caused by traffic, sharp corners, pinching, kinking end general wear. Tighten all fluid connections securely before each use.

REPLACEany damaged hose. NEVER use tape or any device to mend the hose.

PREVENT STATIC SPARKING

Always be sure all equipment end objects being sprayed are Properly grounded. This unit is equipped with a grounding wire end clamp. The

fire or explosion. high Velocity flow of fluid creates static electricity. Sparks may cause

Useonly conductiveor grounded fluid hoses. Be sure gun is grounded through hose connections. Check ground continuity in hose end equipment once e week. Overall (end to end) resistance of un- pressurized hose must not exceed 29 megohms for any coupled length or Combination of hose lengths.

When flushing equipment, remove spray tip, use the lowest possible pressure, end maintain firm metal to metal contact between gun and metal waste container. This reduces the chance of static sparking.

GAS ENGINE PRECAUTIONS

ALWAYS locate unit et least 20 feet awayfrom spraying area because of possible sparking hazard from gasoline engine.

NEVER fill fuel tank while engine is running or hot. Avoid the possibil- ky of spilled fuel causing a fire. Always refuel slowly to avoid spillage.

NEVER operate engine in e closed building unless the exhaust is piped outside. The exhaust contains carbon monoxide, a poisonous,

possible death. odorless and invisible gas, which if breathed causes serious illness end

Always close the fuel cock and remove the ignition cable from the spark plug before adjusting or servicing any mechanical parts of the

the mechanical parts end C ~ U S E serious injury to the operator. unit. Operating E mechanical pert by hand could start the engine and

NEVER alter the throttle setting.

about 3 9 0 psi (245 bar) working pressure. . Precaution is the best insurance against en accident. When starting engine. maintain a safe disfence from moving pem of equipment.

The maximum full loEd engine speed is 28W RPM which occurs Et

IMPORTANT

United States Government safer, standards have been adopted under the Occupational SafeQ End Health Act. These standards-perticulerb the General Standards, Pert 1910, end the Constructon Standards, PaR 1926-should be consulted.

307-465 3

Page 3: 307465C Gna Powered Airless Supply Pump GH733 HYDRA-SPRAY€¦ · mum working pressure rating of at least 4500 pai (310 barl. which is the maximum working pressure of the GH 723

GElTlNG READY

NOTE: Reference numbers and letters .in paren- theses in the text refer to the Typical Installa- tion; Figures 1 through 9, and the Parts Drawing.

Refer to back page for the available Graco accessories.

ing heavy fluids andlor when very long hose lengths are Install a check valve near the pump outlet when pump-

used. See ACCESSORIES.

Install an accessory material handling hose and applica- tion valve to the 1 in. npt(f) tee (141) of the displace. ment pump (105). Refer to the Parts Drawing. Do not install the spray tip on the gun yet; wait until the pump has been flushed. See page 5.

the sprayer are secure. Refer to the Typical Installation Be sure that the fittings on all of the hose connections in

and the Parts Drawing.

Seal Liquid (TSL) so it is about 1/2 full. Refer to Fig 9, Fill the wet-cuplpacking nut 1106) with Graco Throat

page 10.

Lubrication CAUTION

I Check the hydraulic oil and engine oil levels before operating the sprayer. Add the appropriate oil, if necessaw. I

-~ ~-

filter (9). If there is enough hydraulic oil in the system, Check the hydraulic oil. Unscrew the cap of the intake

there should be 1 in. (25 mml of oil visible in the bottom

approved hydraulic oil to the proper level. A completely of the filter screen. See Fig 1. If necessary add Graco-

full hydraulic system contains approximately 5 gallons (18.9 liters) of oil. See the ACCESSORIES section for Graco-approved hydraulic oil.

9

Fig 1

Check the engine oil. Unscrew the oil fill plug (C); the dipstick is attached. See Fig 2. Without threading the plug into place, check the oil level. The oil should be up.' to the top mark on the dipstick. Add fresh oil if necessaw.

RECOMMENDED LUBRICATING OIL: Use a high quali- ty, detergent oil classified "FOR SERVICE SD or SF', for regular use and for the breaking-in of a new engine.

I GRADE OF OIL CHART 3 SEASON OR TEMPERATURE

SAE 30 Spring, Summer, Autumn

GRADE OF OIL

1 34PF toO°F Winter SAE 1OW-30

I Below Oo I SAE 5W-20 Crankcase capacity: 2 quarts (1.9 liters)

Fuel Fill the fuel tank (D) with clean, fresh gasoline. Refer to

liters). Use only reputable, well-known brands of Fig 2. The tank holds approximately 1.5 gallons (5.7

unleaded Regular Grade gasoline. The minimum octane

tane elsewhere. At the maximum operating speed of requirements are 86 octane in the U.S.A., and 96 oc-

2800 RPM, the gasoline consumption is about 1.3 gallonslhour (4.9 liters/hourl.

WARNING Always shut off the engine and let it cool before refilling the fuel tank. Close the fuel cock (E). Refer to Fig 2. Be sure that the air vent in the tank fill cap IF) is not plugged so that fuel can flow to the carburetor. Refer to Fig 6, page 6. Then fill the tank.

a fire. Be careful not to spill any fuel, which could cause

Grounding Connect the grounding clamp (138) to a good ground such as a steel water pipe. Check your local codes for regulations concerning electrical grounding.

~~~~~

4 307-465

Page 4: 307465C Gna Powered Airless Supply Pump GH733 HYDRA-SPRAY€¦ · mum working pressure rating of at least 4500 pai (310 barl. which is the maximum working pressure of the GH 723

OPERATION

Starting the Engine CAUTION

Always open the bypass valve (78) before starting the engine.

Open the bypass valve (78) and the fuel cock (E). The bypass valve is open when the lever is parallel to the

screwed out as far as it will go. See Fig 3. body of the valve. The fuel cock is open when it is

Fig 3 ,' w

pull the rope firmly and rapidly to start the engine. If the engine does not start after one or two attempts, try opening the choke a little further. If the engine floods, open the choke all the way and continue pulling the rope.

After the engine has warmed 'up, gradually open the choke lever (GI and close the bypass valve (78). See Fig 3 and 4. Raise the foot brace and engage the hitch (34).

In cold weather, run the engine for about 15 minutes before starting the material pump. This helps to make sure the hydraulic motor does not stall.

Stopping the Engine Open the bypass valve (78) and depress the stop button (J), holding the button down until the engine stops. Close the fuel cock (E). See Fig 3.

Flush the Material Pump Your new unit was tested in oil and the oil was left in to protect the material pump parts. Before using the sprayer, flush the pump as instructed below.

1. Pour enough clean, compatible solvent to fill the system into a large empty metal pail.

2. Place the suction tube into the pail, or tilt the unit back (it will support itself), place the pail under the pump, then tilt the unit forward to lower the pump into the pail.

Lower the foot brace by disengaging it from the hitch (34). Refer to Fig 3. 3. Be sure the bypass valve (78) and fuel cock (E) are

oDen. Turn the Dressure control knob (F) all the way .If the engine is cold, close the choke by turning the lever counterclockwise to keep pump from operating.

or the air temperature is high, open the choke half way ( G ) so it is horizontal. See Fig 4. If the engine is warm, See Fig 3. Start the engine.

or completely. 4. Close the bypass valve (78). Point the gun into a metal waste container, holding a metal part of the gun firmly against the metal pail. See Fig 5. Squeeze the trigger. At the same time, slowly turn the pressure control knob (F) clockwise just enough to operate the pump. Always use the lowest possi- ble pressure when flushing the unit. Operate the pump until clean solvent comes from the gun. Then release the trigger and engage the trigger safety.

Fig 4 Fig 5

starter rope. Brace one foot against the foot brace and pull the

CAUTION Always hold on to the starter rope while pulling or ,rewinding it. If the rope rewinds too quickly, it can jam the starter assembly.

~

then let the rope rewind slowly into the starter. Then Pull the engine over against the compression stroke and

5. Check all hose connections and fittings for leakage. If there are any leaks, shut off the engine and relieve the fluid pressure before tightening the fit- tings. Then turn the unit on and check to be.sure the leaks have stopped.

6. Remove the pump or suction hose from the solvent pail. Trigger the gun to force the solvent out of the

engine. Engage the trigger safety. hose. Open the bypass valve (78) and shut off the

3 0 7 4 5 ' 5

Page 5: 307465C Gna Powered Airless Supply Pump GH733 HYDRA-SPRAY€¦ · mum working pressure rating of at least 4500 pai (310 barl. which is the maximum working pressure of the GH 723

Prepare the Material end Prime the Pump Prepare your material according to the manufacturer's instructions.

Place the displacement pump or the suction tube into the material supply container. Install a spray tip in the gun (see the gun instru,ct#on manual), and start the engine. Trigger the gun Into a metal waste container, holding a metal part.of the gun firmly against the metal container. Refer to Fig 5. Hold the gun trigger open until all air is forced out of the system. Release the trigger, engage the trigger safety, and let the pump stall.

NOTE: The GH 733 can be tilted backwards and will support itself while placing a 5 gallon pail under the material pump.

Adjusting the Pressure Turn the pressure control knob IF) to adjust the fluid pressure. See Fig 6. Turn the knob clockwise to in- crease the pressure and counterclockwise to decrease

to completely atomize the material. Check the spray the pressure. Always use the lowest pressure necessary

pattern. The tip size and angle determines the panern width and flow rate. Don't try to get more coverage by increasing the pressure; use a larger tip instead. See the separate instruction manual 306-997 for the correct method'of airless spraying. -H -

:leaning a Clogged Tip

Pressure Relief Procedure WARNING

Always relieve system pressure whenever you are done spraying for a while and before installing, removing or cleaning any parts to avoid possible injury from high pressure fluid in the system.

Always follow this procedure: shut off the engine by depressing the stop bunon ( J ) , trigger the spray gun, engage the trigger safety, close the engine fuel cock (E), and slowly open the dram valve (143). Leave the drain valve open until you are ready to use the unit again.

Clean out the front of the tip frequently during the day's operation with a solvent soaked brush. This helps to prevent material build up and tip clogging.

If the spray tip clogs while spraying, follow the Pressure Relief Procedure, above. Loosen the tip guard slowly before removing it completely. Remove the tip and put it and the nozzle of the gun in solvent. Let the tip soak long enough to dissolve the obstruction, or blow it out with air through the front of the'tip. If the air and sol- vent does not loosen the obstruction, tap the back of the tip against a flat surface to jar it out.

Shutdown and Care

pressure according to the Pressure Relief Procedure, If you stop spraying for a short time, relieve system

the gun and the tip in solvent. above. Remove the tip from the gun. Place the nozzle of

overnight in the unit, and for weekend or longer shut- Flush the unit if the material you are pumping will dry

downs. Flush the unit with a compatible solvent, then leave mineral spirits in the pump during storage to help prevent corrosion of material pump.

Whenever it is possible, park the unit in the shade or in a relatively cool area to reduce the possibility of overheating.

Remove and clean the gun tip at least twice a day when spraying. Always stop the pump at the bonom of its stroke when you are through spraying for the day.

periodically and tighten it if necessary. Refer to Fig 9. Check the tightness of the wet-cuplpacking nut (106)

page 10. The nut should be tight enough to stop leakage, but no tighter. Always relieve the system pressure according to the Pressure Relief Procedure (see above) before adjusting the packing nut.

Check the hydraulic oil level occasionally. Unscrew the cap of the intake filter (9); there should be 1 in. (25 mm) of oil visible in the bottom of the filter screen. Refer to Fig 7, page 7. Use Graco-approved oil only. See AC- CESSORIES.

the filter after every 500 hours of operation or every 6 Inspect the return line filter (3) frequently, and replace

months, whichever comes first. Refer to Fig 7, page 7. A clogged filter can cause the cooler to leak or to fail.

6 307-465

Page 6: 307465C Gna Powered Airless Supply Pump GH733 HYDRA-SPRAY€¦ · mum working pressure rating of at least 4500 pai (310 barl. which is the maximum working pressure of the GH 723

Change the hydraulic oil after every ZOO0 hours of CAUTION operation or every 12 months, whichever comes first. For continuous operation in temperatures above 85O F 2800 RPM.

6 months of use. (30° C), change the oil after every 1000 hours or

CAUTION Cleanliness is essential when servicing hydraulic systems. Use special care to avoid getting dust or dirt into the hydraulic system.

To change the hydraulic oil or the filter (3). follow the

waste container under the bypass valve (78). be sure the Pressure Relief Procedure warning on page 6. Place a

valve is closed, and unscrew the swivel union (761. See Fig 7. Open the valve and allow the oil to drain. Remove the 18 screws (2) and the reservoir cover. Remove the

assembly. Secure the new filter'with the seal nut (13) return line filter (3) and replace it with a new filter

screwed firmly to the elbow fitting (14). Inspect the inlet strainer (15) and replace it if necessary. See Fig 7. Close the bypass valve, install the reservoir cover, and pour 5 gallons (19 liters) of approved hydraulic oil into the reservoir, through the intake filter cap (9).

NOTE: Whenever the reservoir cover (10) is remov- ed, put silicon sealant on the threads of the screws (2) when reassembling the cover.

.. .

Periodically,. or if the engine is overheating, follow the Pressure Relief Procedure Warning on page 6. Clean all dirt, dust, etc., off the fan blades, motor and cooler grill. Fig 7

The unit should be level whenever you are checking the hydraulic oil or the engine oil and when replacing or refilling these oils. Refer to the section on "Lubrication" on page 4.

SERVICE INFORMATION

Final Assy. DELETED 1121 2 103-813 Screw

o Series B OLD 106W Nut DELETED 100-020 , Lockwasher

I NEW 13 105-430 Nut OLD NEW

106-065 Elbow 43 106268 Elbow

OLD 177-662 Cooler

Listed below by the assembly changed are OLD, NEW, ADDED and DELETED parts.

ANGED STATUS NO. NO. SSEMBLY PART - REF PART NAME

OLD 177640 Hose NEW OLD

51 061-215 HOSE 1 0 6 4 5 7 Elbow - " ."

ADDED I11 78 210-658 Ball Valve NEW 68 106048 Elbow

OLD NFW

~ ~~

217-018 Hose 00 17&M6 H m e

DELETED ADDED121 138 103-927 Clamp

178478 Label

ADDED 139 217-202 Tube DELETEDIl) 49 101418 Clamp ADDED ADDED

140 106-645 Elbow 141 106-646 Tee

ADDED 142 106-466 Reducer ADDED ADDED

143 100-001 Screw 144 100-057 Screw

. . . . . -. . ~~~~

r -I INTERCHANGEABILITY NOTE NEW parts replace OLD parts listed directly above them. Numbers in parentheses in the Status column indicate quantity change.

307-465 7

Page 7: 307465C Gna Powered Airless Supply Pump GH733 HYDRA-SPRAY€¦ · mum working pressure rating of at least 4500 pai (310 barl. which is the maximum working pressure of the GH 723

r- SERVICE

WARNING

Always relieve system pressure whenever you are Pressure Relief Procedure

done spraying for a while and before installing,

injury from high pressure fluid In the system. removing or cleaning any parts to avoid possible

A/ways follow this procedure: shut off the unit by depressing the enginestop button (J-see Fig 6). trigger the spray gun, engage the trigger safety, close the fuel 'cock (E-see Fig 6). and slowly open the drain valve (78). Leave the drain valve open until you are ready to use the unit again.

TROUBLESHOOTING CHART

PROBLEM

properly.

The gas engine operates, but the paint pump doesn't operate.

The displacement pump operates, but the output is low on the upstroke.

The displacement pump operates but the ou twt is low on the downstroke andlor on both strokes.

There is excessive leakage around the hydraulic motor piston rod

Paint leaks into the wet-cup.

There are excessive surges at the dispensing valve.

CAUSE

The hydraulic motor has stalled.

The pressure setting is too low.

The displacement pump outlet filter (if used) is dirty or clogged. The tip or tip filter (if used) is clogged. The hydraulic fluid is too low.

The hydraulic pump is worn or damaged.

The hydraulic motor is worn 01 damaged. The displacement pump rod is seized by dried paint.

The piston ball check is not seating properly.

The piston packings are worn or damaged.

The piston packings are worn or damaged. The intake valve ball check is not seating properly.

The piston rod or seal is worn or damaged.

The throat packings are worn or damaged.

The displacement pump Outlet filter (if used) is dirty or clogged. The spray tip is too big or it is worn.

SOLUTION

Consult the engine manual.

See "Starting the Engine" on page 5.

page 6. Increase the pressure. See

Clean the filter.

Remove the tip and/or the filter and clean them. Shut off the unit and add fluid immediately: See page 4. Replace the pump. Refer to page 11.

Service the motor. See manual

Service the pump. See page 10, 307-158.

Service the piston ball check. See page 10.

Replace the packings. See page 10.

~~

Replace the packings. See page 10.

~~ ~

Service the intake valve ball check. See page 10.

Replace these parts. See manual ~~

307-158.

Replace the packings. See page 10.

Clean the filter.

Change or replace the tip.

8 307-465

Page 8: 307465C Gna Powered Airless Supply Pump GH733 HYDRA-SPRAY€¦ · mum working pressure rating of at least 4500 pai (310 barl. which is the maximum working pressure of the GH 723

PROBLEM

The fluid delivery is low.

The material coating is too thick.

There is spitting from the dispensing valve.

CAUSE

The pressure setting is too low. The pump outlet filter (if used) is dirty or clogged. The hydraulic pump isworn or damaged.

The hydraulic motor is worn or damaged. There is a large pressure drop in the material handling hose.

The spray tip is too big or it is worn.

The paint supply is low or

The dispensing valve is not closing properly.

empty.

Check everything in the Troubleshooting Chart before disassembling the unit.

*Check the hydraulic fluid level often. Do not allow it to

fluid; see the ACCESSORIES section. become too low. Use only Gmco approved hydraulic

Solvent flush the material from the pump, if possible. Then shut off the engine, trigger the spray gun and engage the trigger safety to relieve the fluid pressure.

Hydraulic Motor CAUTION

Cleanliness is essential when repairing hydraulic

dirt into the motor during servicing. motors. Use special care to avoid getting dust or

See instruction manual 307-158 for motor service.

To remove the hydraulic motor, disconnect all hoses

the hoses to keep dirt out. Remove the three tie rod (84,86,88) from the motor. See Fig 8. Plug the ends of

nuts (101). Support the displacement pump and

ter pin (99) and remove the pump. Unscrew the five unscrew the connecting rod nut (100). Remove the cot-

frame (17). Lift the motor straight up. The tie rods (133) capscrews (36.95) from the bottom side of the pump

will pass through the holes in the frame's mounting plate. See Fig 8.

CAUTION Support the engine on 2 x 4's when removing the motor to prevent the unit from tipping.

SOLUTION

Increase the pressure. Clean the filter.

Replace the pump. See page 11.

Service the motor. See manual 307-158. Use a larger diameter hose.

Change the tip.

Refill the supply container.

Service the valve.

Fig 8 307465 9

Page 9: 307465C Gna Powered Airless Supply Pump GH733 HYDRA-SPRAY€¦ · mum working pressure rating of at least 4500 pai (310 barl. which is the maximum working pressure of the GH 723

Dis lacement Pump Service NO+E: Repair Kit NO. 207-966 is available for SeN-

icing the pump. Use all the new parts in the kit, even if the old ones look good. The old

servicing sooner. parts will wear faster and the pump will need

To remove the pump, remove the three tie rod nuts (101). support the pump, remove the cotter pin (99). unscrew the connecting rod nut 194) and remove the pump.

IntakeValva Screw the intake valve (127) out of the pump housing (1131. If the valve is stuck in the housing, squirt

around the housing with a hammer to loosen it. See penetrating oil around the threads and gent& tap

Fig 9.

O-ring (126). guide (124) and ball (125). See Fig 9. Clean Remove the ball stop pin (123). O-ring retainer (122).

all the parts and inspect them for wear or damage. Reassemble the valve with new parts, if necessary, and screw it into the pump housing.

Screw the intake valve 1127) out of the pump housing Piston, Cylinder, or Displacement Rod

(113). Unscrew the coupling nut 194). Screw the locknut (100) up and remove the lower cotter pin (112).

ting rod (97). Loosen the packing nut (106) and push the Unscrew the displacement rod (116) from the connec-

displacement rod down and out of the housing. Secure the rod in a vise and screw the piston (121) out of the displacement rod. Remove the ball 11191. washer 11M). packings (108,109) and glands 1107.110). Refer to Fig 9.

Clean all parts and inspect them carefully for signs of wear or damage. Check the rod carefully for nicks,

and any other new parts needed and reassemble the scratches or wear. Use the new parts from the repair kit

Torque the piston 1121) to 150-175 ft-lb (203-237 N m ) piston, packings, and ball into the displacement rod.

is compatible to the material being pumped. Always use Lubricate the outside of the packings with a grease that

new glands with new packings. Inspect the inside of the cylinder (115) for score marks. If it needs to be replaced, be sure to install the new cylinder with the tapered end down. If you can't remove it easily from the housing, contact your nearest Graco Factory Branch or Service Depot.

Throat Packings Screw the intake valve (1271 out of the housing and

screw the packing nut (105) out of the housing (113) remove the piston and rod as explained above. Then

and remove the packings (108,109) and glands

side of the new packings with a grease that is compati- (107,110) from the cavity. See Fig 9. Lubricate the in-

glands with new packings. ble to the material being pumped. Always use new

disassembly. Check the tie rods (133) to be sure that Reassemble the pump in the reverse order of

they are tightened securely into the hydraulic motor base. Assemble the connecting rod (97) to the hydraulic motor and screw the locknuts (101) loosely onto the tie rods. Screw the packing nut (106) loosely in place. Finish tightening the locknuts evenly to 35-50 ft-lb

to stop leakage, but no tighter. Start the pump and 147-68 N.m). Then tighten the packing nut just enough

operate it at a slow speed to check the tie rods for signs of binding. Adjust the tie rod locknuts if necessary.

10 307-465

f

Fig 9

Page 10: 307465C Gna Powered Airless Supply Pump GH733 HYDRA-SPRAY€¦ · mum working pressure rating of at least 4500 pai (310 barl. which is the maximum working pressure of the GH 723

Hydraulic Pump WARNING .

I The hydraulic pump and the pressure control knob are sold as a complete assembly only. Do not at- tempt to service these parts yourself. Send them to an authorized Graco service center for replace- I ment or repair. I

I C A U T 1 O N 1

Cleanliness is essential when repairing hydraulic systems. Use special care to avoid getting dust or dirt into the pump during servicing.

~~ ~~~ ~~~~~

Unscrew the swivel (76). point the bypass valve (78) down into a waste container and open the bypass valve to drain the reservoir (121. Refer to Fig 10.

the hydraulic motor (89). Be careful not to turn the Disconnect the hose ( 8 8 1 between the cooler (47) and

elbow (431. Loosen the hose clamp (49) nearest to the cooler on the short section of hose (51 that is located between the reservoir and the cooler. See Fig 10.

to the. fan shield (521. Remove the cooler. Remove the Remove the six screws (2) holding the cooler assembly

fan.

Unscrew the hose coupling stud ( 6 0 ) to disconnect the suction hose ( 5 9 ) between the reservoir and the hydraulic pump.

from the elbow ( 6 8 1 and disconnect the pressure hose Disconnect the case drain hose (55) coupling stud (671

( 8 4 ) from the tee (75) in the outlet of the hydraulic pump 1 6 9 ) .

flange (64). Remove plate (631. loosen the setscrew on Remove the two screws (711 from the pump ( 6 9 1 and

the coupling ( 6 6 ) and pull the pump ( 6 9 ) out.

~~~

installing the fan (50). slide it about 1 in. (25 mml onto Reassemble ,in the reverse order of disassembly. When

the pump ( 6 9 1 shaft and tighten the setscrews.

NOTE: Whenever the reservoir cover (10) is remov- ed, put silicone sealant on the threads of the screws (2) when reassembling the cover.

CAUTION The alignment of the engine mounting flange ( 6 4 1 to the engine and the alignment of the coupler (661 which connects the hydraulic pump 1691 shaft and the engine shaft are critical. If the coupler has failed, Graco recommends that you contact your

~ nearest factory branch or the Graco Service Department for detailed service information.

Cooler Special care must be used if the return tube 1139). the 9oo elbow (43) or the hose ( 8 8 ) leading into the elbow are removed from the cooler (47). The return tube and elbow each connects to a hex-shaped male adapter (K) which is part of the cooler core assembly. See Fig 10. The adapter is made of aluminum and can be easily damaged. So, whenever you are working on these

adapter. Remove and replace the necessary cooler parts parts, hold a wrench stationary on the hex of the male

as instructed in paragraphs 2 and 3 of the Hydraulic Pump section (column 1 ). Reassemble the cooler in the

elbow, use a liquid sealant on the threads and screw the reverse order of disassembly. When installing the

elbow~onto the adapter by hand. Tighten the nuts (L). Refer to Fig 10.

Motor Mounts If the motor mounts (32) must be replaced, be careful to install them correctly and evenly. The nut (30) must be screwed onto the capscrew (31) so the first thread of the screw is just flush with the top of the nut. Refer to the Parts Drawing, page 14.

Page 11: 307465C Gna Powered Airless Supply Pump GH733 HYDRA-SPRAY€¦ · mum working pressure rating of at least 4500 pai (310 barl. which is the maximum working pressure of the GH 723

lef No. 105Displacement Pump lcludes items 106-127

Page 12: 307465C Gna Powered Airless Supply Pump GH733 HYDRA-SPRAY€¦ · mum working pressure rating of at least 4500 pai (310 barl. which is the maximum working pressure of the GH 723

307-465 13

Page 13: 307465C Gna Powered Airless Supply Pump GH733 HYDRA-SPRAY€¦ · mum working pressure rating of at least 4500 pai (310 barl. which is the maximum working pressure of the GH 723

14 307-465

Page 14: 307465C Gna Powered Airless Supply Pump GH733 HYDRA-SPRAY€¦ · mum working pressure rating of at least 4500 pai (310 barl. which is the maximum working pressure of the GH 723

. .. .

PARTS LIST

REF PART DESCRIPTION NO. NO.

a n REF PART DESCRIPTION NO. NO. QTY

1

1 1

2 1

3 4 5 6 8 9 10

12 1 1

13 14 15 16 17 18 19

21 22 23 24

26 25

28 29 30

32 31

33 34 35 36

38 37

39 40

42 41

43 44

20

n

177-760 103-813 167-748 177.807 1 7 7 - m a in-w 1w-179 106061 177.586 177-587 216-156 105-430 100-457 106114

216142 106123 103-420 158-884

101-354 rn-570

106.039 101-725 177-656 100418

177-6w

in-641

LABEL, caution SCREW, rnscr, rnhd; 5/16 thd; , 0 2 5 " Ig. FILTER, fluid; hyd. return LABEL, identification, right hand LABEL, identification, left hand SHIELD, heat NUT, rnscr. hex; No. 10

COVER, reservoir BREATHER, filter, filler

GASKET, reservoir, Buna-N RESERVOIR, oil NUT, seal. 1" npt ELBOW, 90O. 1" npt Irn x fl STRAINER, inlet GROMMET, rubber

CAPSCREW, hex hd, 1/2 npt x 4" FRAME, pump

PIN, spring, straight WASHER AXLE PIN, spring, straight WASHER, wheal WHEEL, pneumatic TIP, crutch BRACE, foot

NUT, 112-13 LOCKWASHER, 112"

MOUNT, engine LOCKNUT, 318" CAPSCREW, hex hd: 3/8" thd: 1.5 Ig. MOUNT, motor, vibration insulation CAPSCREW, hex hd; 318" thd; 1.5 Ig.

WASHER, flat PIN, hitch, extension

CAPSCREW, hex hd; 318" thd; 1" Ig.

PLATE, engine LOCKWASHER, 3 / 6

NUT, jam. hex; 114" thd

WASHER, 114" LOCKWASHER; 114" thd

PAD, mounting ELBOW. 90': 7/8 nptlrnl x 112 nptlf)

2.75' Ig. SCREW. machine. hex hd; 1/4-20 thd;

GRILL, cooler FRAME, cooler COOLER, air to oil KEY. 3116 sq. CLAMP, hose FAN, cooler HOSE; 1" ID, 1.5" Ig. SHIELD, fan

STUD. hose; 114 nptlrnl x 114" barb LABEL, warning

CLAMP, hose HOSE, 114" IO; 6 Ig.

STUD, hose; 1" nptlrn) x 1" barb STUD. hose: 1-112 nptlrn) x 5/8" barb

STUD, hose: 1-5/16'' str thd swivel; 1" HOSE, suction; 1" ID; 10.5" 10.

ham

30 1

1

1 1

75 76

1 M 5 0 1o6-040

210-658 100-505 77

78

6 i 1

79 &I 82 E3 84

177-666 106229 217-021

1 1

217419 177-761

".

3 1 1

i 85 86 217-017

106453

620-188 178-206

i 1 4 2 2 1 2 2 2 1

4 1

4

1 1 1

4 . 4 4 1 6 3 6 1

87 88

1 89 217422

90

92 91

93 94 95 96 97 98 99 100

1 02 101

103 104 1 0 5

177-652 150-707 102-472 106-056 168-211

168210 106-212

168-212 158674

101-936 100-103

101-712

216141 101-566 100-468 104-766 102-637 106-106 100423 1w-101

1Oa32i

3 101-552 102-ooo

207474 169-528

Series E 207-471

**167-899 "57-898

"167-898 *'167-897

150-707 "00-103 207-470

"67-894 167-893

"101-274 167-901

V02-972 167-900

'167-895 '207-472 167-891 167-890

*102-973 167-892

"102-642 207-473

208.950 .. 178044

103-538 CLAMP, grounding 101-845 SCREW, self-tapping; No. 632x3/8"

609-822 ROD, tie 103-181 LOCKWASHER: No. 6

101-368 CLAMP, hose 178478 LABEL, stop

214-959 HOSE, suction: 1" ID, 6 ft 177-755 LABEL. identification

217-202 TUBE, cooler 103-927 CLAMP

106465 ELBOW, 1" nptlrnl 106464 TEE, 1" nptlfl 106-466 REDUCER, 1" nptlf) x 1/4 nptlm) 109-001 SCRFW 100-057 101-052

.. . . .-

100-133 177-585

100416 101.345

159.346 174.077 106-268 100-646

~~ ~~

1 106 107 108 109 110 111 112 113

i 4 4 E 1

4 1 1

45 46 47 48 49 50 51 52 53

55 54

177.645 177-580 504944 150-062

106105

216-155 061-215

172-532

177-667 106046

103-126 106-043

177-665 106044

106-045

to1a18

114 . ._ 115 116 117

119 118

1 20 121

1 2 3 122

1 24 125

1 27 128 129

131 130

132 133 134 135 136 1 37 138 139 140 141 1 42 143 144 145

. ..

1m

1 1 1

1 1

1 1

1 1

1 1

1 1 1 3

57 56

58 59 M)

..

1 1 61

62 63 64

106457 104-869 177-715 177-972 605-358

106-047 106-063

106"R

SCREW, self-tapping, pnhd; No.10 ELBOW. 9 0 O

COVER, piate FLANGE, engine mounting KEY l/d"

4 2 1

65 66 67

i 1 COUPLING

barb STUD. hose; 7/16'. thd (swivel) x 114"

ELBOW, 9 0 O

GUARD, muffler PUMP. hydraulic

CAPSCREW, hex hd; 3/816 x 1.114" CAPSCREW, hex hd; 7/16 thd; 1.25 Ig.

REDUCER, 1-5/16 str lhd swivel, LOCKWASHER, 7/16

1 - 1 / 1 6 l f l str thd

. . - . . . , . 1 1 68

69 70 71 72 73 74

1 217-197 178-058 100-004 101-032 100-052

~~ . .. 1 1 2 d 1

8 4 1

4

'1 106-049 SCREW

PLUG

- - . . - . .

reduce down time. *Recommended "tool box" spare parts. Keep on hand to

**Supplied in repair kit 207-966

Order Pam by name and series letter of the assembly for which you are ordering.

307-465 15

Page 15: 307465C Gna Powered Airless Supply Pump GH733 HYDRA-SPRAY€¦ · mum working pressure rating of at least 4500 pai (310 barl. which is the maximum working pressure of the GH 723

~~ ~ ~

ACCESSORIES (Must be purchased separately)

AIRLESS SPRAY GUN

0.090 in. fluid passage orifice; 114 npsm (m) fluid inlet XXWpsi(344bar) MAXIMUM WORKING PRESSURE

208-663 with three-fingertrigger 208-664 with four-finger trigger

6wo psi (415 bar) MAXIMUM WORKING PRESSURE For heavy materials. 112 npt(f) inlet.

FLO-GUN 207-945

50 DSi (344 barl MAXIMUM WORKING PRF.9.9lIRF CHECK VALVE 217-286

1" npt. Installed after outlet elbow (Ref No. 140). and followed by Accessory elbow 106-645 which is installed before the tee (Ref No. 141).

~ ~~ ~~

=-GAL. SUCTION TUBE 207-485

THE GRACO WARRANTY Graco Inc. warrants all equipment manufactured by it and bearing its name to be free from defects in material and workmanship under normal use and service. This warranty extends to. the original purchaser for a period of 12 months from the date of purchase and ap-

accordance with written factory recommendations. This warranty plies only when the equipment is installed and operated in

does not cover damage or wear which, in the reasonable judgment of Graco. arises from misuse. abrasion, corrosion, negligence, accident, substitution of non-Graco parts, faulty installation or tampering.

This warranty is conditioned upon the prepaid return of the equipment claimed to be defective for examination by Graco to verify the claimed defect. If the claimed defect is verified, Graco will repair or replace free of charge. any defective park. The equipment will be returned to the original purchaser transportation prepaid. If inspection of the equipment does not disclose any defect in workmanship or material,

will be charged. repairs will be made a t a reasonable charge and return transportation

THIS LIMITED WARRANTY IS EXCLUSIVE, AN0 IS IN LIEU OF ANY OTHER WARRANTIES (EXPRESS OR IMPLIED) INCLUDING WARRANTY OF MERCHANTABILITY OR WARRANTY OF

CONTRACTUAL LIABILITIES INCLUDING PRODUCT LlABiLlTlES FITNESS FOR A PARTiCULAR PURPOSE AND OF ANY NON-

BASE0 ON NEGLIGENCE OR STRICT LIABILITY. EVERY FORM OF LIABILITY FOR DIRECT, SPECIAL OR CONSEQUENTIAL DAMAGES OR LOSS IS EXPRESSLY EXCLUDED AN0 DENIED.

EQUIPMENT NOT COVERED BY GRACO WARRANTY. Accessories or components of equipment sold by Graco that are not manufactured by Graco lsuch as electric motors, switches, hose, etc.) are subject to the warranty. if any, of their manufacturer. Graco will provide purchaser with reasonable assistance in making such claims.

HYDRA-MASTICSWIVELS 6wopsi(413bar) MAXIMUM WORKING PRESSURE

207-946 Straioht Swivel. ,a 318 npt(f) x l l f n p s m (f) ' 207-947 Straiaht Swivel,

207-948 90° Swivel, 112npt(f)xl/2npsm(f)

5wopsi1344barl MAXIMUM WORKING PRESSURE Clears tip stoppages by paint pressure

REVERSE-A-CLEAN 111 216-001

50 psi (344 barl MAXIMUM WORKING PRESSURE SURGE TANK 8 FILTER

214-625 Paint Filter, 60 mesh (250 micron), 18 sq. in. (120 cm2) filter screen

ELBOW 106-645 1" npt. Required to install check valve217-286. Same as Ref No. 104.

HYDRAULIC FLUID 207-428 1 gallon (3.8 liter)

HIGH PRESSUREFLUID HOSE 50psi1344barl MAXIMUM WORKING PRESSURE

215441 l o f t (3 m) 112in. ID, BunaN tube, coupled 112npthnbe)

215-442 15ft(4.5m)

215444 50ft(15.2m) 215-443 25ft (7.6 m)

314in. ID, Neoprene tube, coupled3/4npt(mbe) 215-238 lOft(3m) 215-239 15ft(4.5m) 215240 25ft(15.2m)

TECHNICAL DATA Engine

Gasoline tank

Hydraulic pump

Hydraulic fluid sump Hyd. pump suction filter Hydraulic oil return filter

Material pump

Wetted parts

Dimensions Weight

: KOHLER. Model K341-T, 4 cycle, single cylinder, air cooled, 16 HP

: 1.5 gallon (5.7 liter) capacity; con- 112 kW)

: 9 GPM 1 3 4 literlmin) max. volume; Sumes 1.3 gailhr 14.9 iiterlhour)

200-15w psi 114-103 bar) pressure range

: 5 gallon (19 liter) : 30 mesh screen : 400 sq in 1 2 5 8 0 cm*) surface area; 25

:4500 psi (310 bar) max. working micron filtration; disposable type

pressure; 3 GPM (13 literlmin) out- put; 15 cycleslgal

:Steel, Nitralloy, Tungsten Carbide, Leather

: 350 Ib I160 kg1 :Length: 48 in. 11.2 m) Width: 29 in. 1736 mml Height: 48 in. 11.2 ml

Subsidiary and Affiliate Compen1as:Canada: England: Switzerland; France: Germany; Hone Kona: JaDan Factory Branches:Atlante, Dallas, Detrolt, Los Angeles. West Caldwell IN.J.1

GRACO INC. P. 0. Box 1441 MINNEAPOLIS, MN 55&0"1444- PRINTED IN U.S.A. 307-465 581 Revised 1 6 2

PTFE