Sm 1000 4905 SixAndSevenPositionCylinder

7/28/2019 Sm 1000 4905 SixAndSevenPositionCylinder

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The six and seven position cylinders are medium duty pneumatic

positioning devices that operate through six or seven predetermined

positions of ½” (12.7 mm) increments with total strokes of 2½” (63.5

mm) or 3” (76.2 mm) respectively. They were primarily designed for

power-shift transmissions but may also be utilized for indexing and

any other application where fixed stroke increments are required.

The ideal companion valve for these cylinders is Type "P" six or

seven position Rotair®Valve. An alternative control is an electro-

pneumatic switching circuit using 3-way solenoid valves. Thesecylinders are extremely rugged having anodized, corrosion resistant,

lightweight aluminum body, pistons and pistons stops.

WARNING: INSTALLATION ANDMOUNTING

The user of these devices must conform to all applicable electrical,mechanical, piping and other codes in the installation, operation orrepair of these devices.

INSTALLATION! Do not attempt to install, operate or repair thesedevices without proper training in the technique of working onpneumatic or hydraulic systems and devices, unless under trainedsupervision.Compressed air and hydraulic systems contain high levels of storedenergy. Do not attempt to connect, disconnect or repair theseproducts when a system is under pressure. Always exhaust or drainthe pressure from a system before performing any service work.Failure to do so can result in serious personal injury.

MOUNTING! Devices should be mounted and positioned in such amanner that they cannot be accidentally operated.

INSTALLATION

Mount the cylinders in any desirable plane to a sturdy, flat surface

(preferably with the ports facing down) with three 3/8" bolts.

Mounting lugs are cast in the body of the cylinders. Avoid

misalignment with the load to be positioned since side thrust and

binding will affect the service life of the rod bearing and piston stop

seals.

All ports are 1/4”-18 NPT. The following ports should be pipedtogether with "T" connections: 3 with 3A on the six position cylinder,3 with 3A and 6 with 6A on the seven position cylinder. Connectionsshould be made as close to the cylinder as possible to reduce thenumber of lines from the control valve.

OPERATION

Maximum operating pressure is 150 psi (10 bar) within a

temperature range of -40° to 200°F (-40° to 93°C). The cylinder

piston rod reaches its various positions in response to pressure

being supplied to the cylinder ports as shown in the truth tables on

pages 3 and 5. V means air must be vented to atmosphere, S

means air must be supplied and S/V means port can be supplied or

vented. whichever is most convenient in the control valve. Each

cylinder has reverse at full extended position of the rod and is spring

returned to neutral (next position in from reverse) from any position.

The transmissions which these cylinders usually control have the full

automatic or drive position adjacent to neutral. The corresponding

position is 5 on the seven position and 4 on the six position cylinder.

The sequential order of cylinder positions is a function of the "P"

Rotair Valve.

The forces developed by the cylinder are functions of the airpressure applied to the exposed piston areas and are tabulated forrod movement to the various stroke positions as shown on thecharts on pages 6 and 7. The internal spring returns the piston rod to its Neutral position whenair pressure is intentionally or unintentionally exhausted from allcontrol lines. This safety feature returns the transmission to neutralif the air supply is lost.

MAINTENANCE

Periodically disassemble the cylinder for cleaning and inspection.Clean all metal parts with a nonflammable solvent and wash allrubber parts with soap and water. Rinse thoroughly and dry, using

low pressure jet, if available. Replace all damaged or worn parts.Reassemble the cylinder, lubricating each part as it is put in place.Rubber parts should be lubricated with Dow Corning No. 55pneumatic grease. Check the operation of the reassembled cylinderby putting low pressure air in the ports in accordance with the truthtable, pages 3 and 5.

NOTE: When disassembling a cylinder, please use CAUTION asthe return springs are under compression.

ADJUSTMENT

REXROTH six and seven positions require no adjustment.

SIX R431006322 (P -063892-00001) AND SEVEN R431006321 (P -063981--00002)

POSITION CYLINDERS

Service Information

SM-1000.4905

NOTE:

“P” Rotair Valve R431006324 (P -063984-00000) was designed to control

six position cylinder R431006322 (P-063982-00001) and valve R431006326(P -063985-00000) was designed to control seven position cylinder

R431006321 (P -063981-00002). Both of these Rotair Valves have first

gear position adjacent to neutral and progress toward full automatic at the

extreme position of valve handle travel Rotair Valves can be made available

to have the handle position sequence identical to the transmission. Six

position Rotair R431006324 (P -063984-00000) should be connected as

follows:

Ports No. 1 and No. 5 plugged, Exhaust port is 1/8” NPT, pressure is

supplied to unnumbered port in the side of the pipe bracket, valve port No. 2

to cylinder port No. 2, valve No. 4 to cylinder No. 5, valve No. 3 to cylinder

No. 3 & 3a, and valve port No. 6 to cylinder port No. 6A in six position

cylinder R431006322 (P -063982-00001).

Seven position Rotair R431006326 (P -063985-00000) should be connected

as follows: port No. 1 plugged, exhaust port No. 4, pressure is supplied to

unnumbered port in the side of the pipe bracket, valve port No. 2 to cylinder

port No. 2, valve No. 5 to cylinder No. 5, valve No. 3 to cylinder No. 3 & No.3A and valve port No. 6 to cylinder No. 6 & 6A in seven position cylinder

R431006321 (P -063981-00002).



Page 2

EXPLODED VIEWSix Position

R431006322 (P –063982-00001



Page 3

SIX POSITION CYLINDER PARTS LISTM-4-N-1B CYLINDER P/N R431006322 (P -063982-00001)

DWG. NO. CP63982A

ITEM NO. QTY. DESCRIPTION NEW P/N OLD P/N

1 4 SCREW, 1/4 X 20 X 3/4 CAP R431002203 P -049856-00046

2 1 PISTON 2 7/8 R431002303 P -064175-00000

*3 1 O-RING, 2 3/4 See Kit See Kit

*4 2 O-RING, 2 O.D. See Kit

5 1 PISTON, 2 REAR R431006371 P -064184-00000

6 1 BODY, CYLINDER R431006377 P -064193-00000

7 1 SCREW, CAP HEX, HEAD R431002232 P -049832-00078

8 1 WASHER, LOCK 5/16 R431002572 P -049982-00006

*9 1 PISTON, 1 3/4 R431006374 P -064189-00000

*10 1 O-RING, 1 3/4 O.D. See Kit

*11 3 O-RING, 11/16 O.D. See Kit

12 1 PISTON, 2 FRONT R431006909 P -066884-00000

13 1 PISTON, 1 5/8 R431006365 P -064172-00000


15 1 PISTON 2 7/8 R431006910 P -066885-00000


*17 1 O-RING, 3 3/8 O.D. See Kit*18 1 O-RING, 1 5/8 O.D. See Kit

19 1 RING, RET. 1 5/8 R431002387 P -049882-00010

20 1 HOUSING, BUSHED SPRING R431000896 P -028264-00001

21 1 SPRING R431006375 P -064191-00000

22 1 ROD, PUSH COMPLETE R431006563 P -065103-00001

23 1 RETAINER, SPRING R431006908 P -066883-00000

24 1 BUSHING R431006366 P -064173-00000

*25 1 WIPER, ROD 1/2 See Kit

26 4 SCREW, CAP 1/4-20X1 R431002303 P -049856-00046

Recommended Spare Parts - *Packing Repair Kit P/N R431006546 (P -064997-00001)Spring P/N R431006375 (P -064191-00000)

CONDITION OF PORTS

CYLINDERPOSITION CAVITY

3 2 5 3A 6A

R S V S V V V

N S V V V V V

4 S V V V V S

3 S V V V S V

2 S V S S V S V

1 V V S S V S V

S SUPPLIED V VENTED



Page 4

EXPLODED VIEWSeven Position

R431006321 (P –063981-00002



Page 5

SEVEN POSITION CYLINDER PARTS LISTM5-N-1B P/N R431006321 (P -063981-00002)

DWG. NO. CP63981A

ITEM NO. QTY. DESCRIPTION NEW P/N OLD P/N

1 1 CAP R431006372 P -064186-0000

2 1 ROD, REAR PISTON R431006373 P -064188-0000

3 1 PISTON, 2 1/4 R431006376 P -064192-0000

*4 12 O-RING, 2 1/4 O.D. See Kit See Kit*5 1 O-RING, 5/8 O.D. See Kit See Kit

*6 2 O-RING, 2 3/4 O.D. See Kit See Kit

*7 1 O-RING, 2 O.D. See Kit See Kit

8 1 PISTON, 2 REAR R431006370 P -064183-00000

9 1 BODY, CYLINDER R431006377 P -064193-00000

10 1 SCREW, CAP HEX. HEAD R431002232 P -049832-00078

11 1 WASHER, LOCK 5/16 R431002572 P -049982-00006

12 1 PISTON, 1 3/4 R431006374 P -064189-00000


*14 1 O-RING, 11/16 O.D. See Kit See Kit

15 1 PISTON, 2 FRONT R431006909 P -066884-00000

16 1 PISTON, 1 5/8 R431006365 P -064172-00000


18 1 PISTON, 2 7/8 R431006910 P -066885-00000




22 1 RING, RET. 1 5/8 R431002333 P -049857-00007

23 1 HOUSING, SPRING R431000896 P -028264-00001

24 1 SPRING R431006375 P -064191-00000

25 1 ROD, PUSH COMPLETE R431006562 P -065103-00000

26 1 RETAINER, SPRING R431006908 P -066883-00000

27 1 BUSHING R431006366 P -064173-00000

*28 1 WIPER, ROD 1/2 See Kit See Kit

29 2 RING, RET. 1/2 R431002333 P -049857-00007

30 8 SCREW, CAP 1/4-20X1 R431002303 P -049856-00046

Recommended Spare Parts - *Packing Repair Kit P/N R431006546 (P -064997-00001)Spring P/N R431006375 (P -064191-00000)

CONDITION OF PORTS

CYLINDERPOSITION

CAVITY

6 3 2 5 3A

R S V S V S V V

N S V S V V V V

5 S V S V V V V

4 S V S V V V S

3 S V S V S S V

2 S V V S S V

S SUPPLIED V VENTED

1 V V V S S V

6A

V

V

S

V

S V

S V

S V

ASSEMBLY VIEW



Page 6

SIX POSITION CYLINDER



Page 7

SEVEN POSITION CYLINDER





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Factory Automation

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Further contacts:www.boschrexroth.com/addresses

The data specified herein only serves todescribe the product. No statements

concerning a certain condition or suitabilityfor a certain application can be derived from

our information. The given information doesnot release the user from obligation of own judgment and verification. It must beremembered that our products are subject to a

natural process of wear and aging. ©Thisdocument, as well as the data, specificationsand other information set forth in it, are the

exclusive property of Bosch Rexroth Corp.Without their con- sent it may not bereproduced or given to third parties.

Printed in the United StatesSM-1000.4905

(Supercedes B3-49.05)December 2008

©2008 Bosch Rexroth Corporation

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Sm 1000 4905 SixAndSevenPositionCylinder