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Parker Torqmotor Service Procedure (TC, TS, TB, TE, TJ, TF, TG, TH and TL Series). Manual (2007) - page 3

HY13-1512-006-M1/USA

Torqmotor™ Service Procedure

Disassembly and Inspection

TC, TS, TB, TE, TJ, TF, TG, TH and TL Series

Inspect housing

21. If the housing (18) assembly has passed

bearing/bushing

inspection to this point, inspect the housing

bearings/bushings (19) and (13) and if they

are captured in the housing cavity the two

thrust washers (14) and thrust bearing (15).

The bearing rollers must be firmly retained

in the bearing cages, but must rotate and

orbit freely. All rollers and thrust washers

must be free of brinelling and corrosion.

SEE FIGURE 27. The TB Series bushing (19)

or (13) to coupling shaft diameter clearance

Figure 27

must not exceed .010 inch (.025 mm). A

bearing, bushing, or thrust washer that does

not pass inspection must be replaced. SEE

FIGURE 28. If the housing has passed this

inspection the disassembly of the Torqmo-

tor™ is completed.

NOTE

NOTE: The depth or location of bear-

ing/bushing (13) in relation to the housing

Figure 28

wear plate surface and the depth or loca-

tion of bearing/bushing (19) in relation to

the beginning of bearing/bushing coun-

ter bore should be measured and noted

before removing the bearings/bushings.

This will facilitate the correct

reassembly of new bearings/bushings.

SEE FIGURE 29.

Figure 29

Remove

22. If the bearings, bushing or thrust washers

bearings

must be replaced use a suitable size bear-

or bushings

ing puller to remove bearing/bushings (19)

& thrust

and (13) from housing (18) without damag-

washers

ing the housing. Remove thrust washers

(14) and thrust bearing (15) if they were

previously retained in the housing by bear-

ing (13). SEE FIGURES 30 & 31.

Figure 30

THE DISASSEMBLY OF TORQMOTOR™ IS COMPLETED.

Figure 31

37

Parker Hannifin Corporation

Hydraulic Pump/Motor Division

Greeneville, TN 37745 US

HY13-1512-006-M1/USA

Torqmotor™ Service Procedure

Torqmotor™ Assembly

TC, TS, TB, TE, TJ, TF, TG, TH and TL Series

• Replace all seals and seal rings with new ones each time you reassemble the Torqmotor™ unit. Lubricate all

seals and seal rings with SAE 10W40 oil or clean grease before assembly.

• NOTE: Individual seals and seal rings as well as a complete seal kit are available. SEE FIGURE 32.

The parts should be available through most OEM parts distributors or Parker approved Torqmotor™

distributors. (Contact your local dealer for availability).

• NOTE: Unless otherwise indicated, do not oil or grease parts before assembly.

• Wash all parts in clean petroleum-based solvents before assembly. Blow them dry with compressed air. Re-

move any paint chips from mating surfaces of the end cover, commutator set, manifold rotor set, wear plate

and housing and from port and sealing areas.

WARNING

WARNING: SINCE THEY ARE FLAMMA-

BLE, BE EXTREMELY CAREFUL WHEN

USING ANY SOLVENT. EVEN A SMALL

4

EXPLOSION OR FIRE COULD CAUSE

INJURY OR DEATH.

3

20

WARNING

WARNING: WEAR EYE PROTECTION

AND BE SURE TO COMPLY WITH OSHA

17

16

OR OTHER MAXIMUM AIR PRESSURE

25

REQUIREMENTS.

Press in outer

1.

If the housing (18) bearing components were

Figure 32, TF, TG seal kit

bearing/bushing

removed for replacement, thoroughly coat

and pack a new outer bearing/bushing (19)

with clean corrosion resistant grease recom-

mended in the material section. Press the

new bearing/bushing into the counterbore at

the mounting flange end of the housing, using

the appropriate sized bearing mandrel such

as described in figure 1 or figure 2 which will

control the bearing/ bushing depth.

Small Frame Series TC, TS, TB and TE Torq-

motor™ housings require the use of bearing

mandrel shown in figure 1 to press bearing/

bushing (19) into the housing to a required

Figure 33

depth of .151/.161 inches (3.84/4.09 mm)

from the end of the bearing counterbore. SEE

FIGURE 33. (TC reference page 10).

Large Frame Series TF, TL, TG & TJ Torqmo-

tor™ housings require the use of the bearing

mandrel shown in figure 2 to press bearing

(19) into the housing to a required depth of

.290/.310 inches (7.37/7,87 mm) from the

outside end of the bearing counterbore.

SEE FIGURE 34.

Large Frame Series TH Torqmotor housings

require the use of a bearing mandrel. Consult

factory for specifications.

Figure 34

38

Parker Hannifin Corporation

Hydraulic Pump/Motor Division

Greeneville, TN 37745 US

HY13-1512-006-M1/USA

Torqmotor™ Service Procedure

Torqmotor™ Assembly

TC, TS, TB, TE, TJ, TF, TG, TH and TL Series

NOTE

NOTE: Bearing mandrel must be pressed

against the lettered end of bearing shell.

Take care that the housing bore is square

with the press base and the bearing/

bushing is not cocked when pressing a

bearing/bushing into the housing.

CAUTION

CAUTION: If the bearing mandrel speci-

fied in the “Tools and Materials Required

for Servicing” section is not available and

alternate methods are used to press in

Figure 35

bearing/bushing (13) and (19) the bear-

ing/bushing depths specified must be

achieved to insure adequate bearing

support and correct relationship to adja-

cent components when assembled. SEE

FIGURE 35.

CAUTION

CAUTION: Because the bearing/bush-

ings (13) and (19) have a press fit into the

housing they must be discarded when

removed. They must not be reused.

Figure 36

Press in inner

2.

The Small Frame Series TC, TB, TS and TE

bearing/bushing

Torqmotor™ inner housing bearing/bushing

(13) can now be pressed into its counter-

bore in housing (18) flush to .03 inch (.76

mm) below the housing wear plate contact

face. Use the opposite end of the bearing

mandrel that was used to press in the outer

bearing/bushing (19). Reference figure 1,

“Tools and Materials Required for Servicing”

section. SEE FIGURE 36.

The Large Frame Series TF, TL, TG & TJ

Torqmotor™ housing (18) requires that you

assemble a new backup washer (25) &

Figure 37

backup ring (17), new seal (16), with the lip

facing to the inside of Torqmotor (see figure

69A), new thrust washer (14), new thrust

bearing (15) and a new second thrust wash-

er (14) in that order before pressing in the

inner housing bearing (13). SEE FIGURE 37

& 38. When these components are in place,

press new bearing (13) into the housing (18)

to a depth of .105/.125 inches (2.67/3.18),

.03 inches max for TJ (.76) below the hous-

ing wear plate contact face. Use the op-

posite end of the bearing mandrel used to

press in outer bearing (19). Reference figure

2, in the “Tools and Materials Required for

Servicing” section. SEE FIGURE 39.

Figure 38

39

Parker Hannifin Corporation

Hydraulic Pump/Motor Division

Greeneville, TN 37745 US

HY13-1512-006-M1/USA

Torqmotor™ Service Procedure

Torqmotor™ Assembly

TC, TS, TB, TE, TJ, TF, TG, TH and TL Series

Press in dirt &

3. Press a new dirt and water seal (20) into the

water seal

housing (18) outer bearing counterbore.

Figure 39

The Small Frame Series TC, TS, TB and TE

Torqmotor™ dirt and water seal (20) must

be pressed in until its’ flange is flush against

the housing. SEE FIGURE 40.

Figure 40

The Large Frame Series TF, TL, TG, TJ & TH

Torqmotor™ dirt and water seal (20) must

be pressed in with the lip facing out and

until the seal is flush to .020 inches (.51 mm)

below the end of housing. SEE FIGURE 41.

Figure 41

Place housing

4. Place housing (18) assembly into a soft

assembly

jawed vise with the coupling shaft bore

into vice

down, clamping against the mounting

flange. SEE FIGURE 42.

Figure 42

40

Parker Hannifin Corporation

Hydraulic Pump/Motor Division

Greeneville, TN 37745 US

HY13-1512-006-M1/USA

Torqmotor™ Service Procedure

Torqmotor™ Assembly

TC, TS, TB, TE, TJ, TF, TG, TH and TL Series

Assemble backup

5.

On Small Frame, Series TC, TS, TB & TE

washer & seal

Torqmotors™ assemble a new backup ring

(17), new bakcup washer (25) and new seal

(16) with the seal lip facing toward the inside

of Torqmotor™ (see Figure 69B), into their

respective counterbores in housing (18) if

they were not assembled in procedure 2.

Large Frame, Series TF, TG, TJ & TH Torq-

motor™ housing (18) that did not require

replacement of the bearing package will

Figure 43

require that the two “captured” thrust wash-

ers (14) and thrust bearing (15) be unseated

and vertical to the counterbore and the

new backup ring (17), new backup washer

(25), and new seal (16) be worked around

the thrust bearing package and placed into

their respective counterbores. The seal lip

must face out of the seal counterbore and

toward the inside of Torqmotor™ (see figure

69A). Be sure the thrust bearing package is

reseated correctly after assembly of the seal

and backup washer. SEE FIGURES 43 & 44.

CAUTION

CAUTION: Original design Large Frame,

Figure 44

TF & TG Torqmotors™ that do not have

backup washer (25) when disassembled

must be assembled with a new backup

ring (17), new backup washer (25), and

new seal (16).

Assemble thrust

6.

Assemble thrust washer (14) then thrust

washer & bearing

bearing (15) that was removed from the

Series TC, TB, TS or TE Torqmotor™. SEE

FIGURE 45.

NOTE

NOTE: Small Frame Series TC, TS, TB

and TE Torqmotors™ require one thrust

washer (14) with thrust bearing (15). The

coupling shaft will be seated directly

Figure 45

against the thrust bearing.

Apply masking

7. Apply masking tape around splines or

tape to shaft

keyway on shaft (12) to prevent damage to

seal. SEE FIGURE 46.

Figure 46

41

Parker Hannifin Corporation

Hydraulic Pump/Motor Division

Greeneville, TN 37745 US

HY13-1512-006-M1/USA

Torqmotor™ Service Procedure

Torqmotor™ Assembly

TC, TS, TB, TE, TJ, TF, TG, TH and TL Series

Install

8.

Be sure that a generous amount of clean

coupling

corrosion resistant grease has been applied

shaft

to the lower (outer) housing bearing/bushing

(19). Install the coupling shaft (12) into hous-

ing (18), seating it against the thrust bearing

(15) in TC, TS, TB and TE Series housings

and against the second thrust washer (14)

in TF, TL, TG and TH Series housings. SEE

FIGURE 47.

CAUTION

CAUTION: The outer bearing (19) is not

Figure 47

lubricated by the system’s hydraulic

fluid. Be sure it is thoroughly packed with

the recommended grease, Parker Gear

grease specification #045236, E/M Lubri-

cant #K-70M.

NOTE

NOTE: Mobil Mobilith SHC ® 460

NOTE: A 102 Tube (P/N 406010) is includ-

ed in each seal kit.

NOTE

NOTE: The coupling shaft (12) will be

flush or just below the housing wear

surface on Small Frame, Series TC, TS,

TB, TE & TJ Torqmotors™ when properly

seated while the coupling shaft (12) on

Figure 48

Large Frame, Series TF, TL, TG, or TH

Torqmotors™ will be approximately .10

inch (2.54 mm) below the housing wear

plate surface to allow the assembly of

thrust bearing (11). The coupling shaft

must rotate smoothly on the thrust bear-

ing package. SEE FIGURE 48.

Install thrust

9.

Install thrust bearing (11) onto the end of

bearing

coupling shaft (12) only if you are servicing

an TF, TL, TG, TH or TL Series Torqmotor™.

SEE FIGURE 49.

Insert seal

10. Apply a small amount of clean grease to a

Figure 49

ring

new seal ring (4) and insert it into the hous-

ing (18) seal ring groove. SEE FIGURE 50.

NOTE

NOTE: One or two alignment studs

screwed finger tight into housing (18) bolt

holes, approximately 180 degrees apart,

will facilitate the assembly and alignment

of components as required in the follow-

ing procedures. The studs can be made

by cutting off the heads of either

3/8-24 UNF 2A or 5/16-24 UNF 2A bolts

as required that are over .5 inch (12.7

mm) longer than the bolts (1, 1A, 1B, or

1C) used in the Torqmotor™.

Figure 50

42

Parker Hannifin Corporation

Hydraulic Pump/Motor Division

Greeneville, TN 37745 US

HY13-1512-006-M1/USA

Torqmotor™ Service Procedure

Torqmotor™ Assembly

TC, TS, TB, TE, TJ, TF, TG, TH and TL Series

Install

11. Install drive link (10) the long splined end

drive link

down into the coupling shaft (12) and en-

gage the drive link splines into mesh with

the coupling shaft splines. SEE FIGURE 51.

NOTE

NOTE: Use any alignment marks put on

the coupling shaft and drive link before

disassembly to assemble the drive link

splines in their original position in the

mating coupling shaft splines.

Figure 51

Assemble

12. Assemble wear plate (9) over the drive link

wear plate

(10) and alignment studs onto the housing

(18). SEE FIGURE 52.

Assemble

13. Apply a small amount of clean grease to a

seal ring

new seal ring (4) and assemble it into the

Figure 52

seal ring groove on the wear plate side of

the rotor set stator (8B). SEE FIGURE 53.

Install the

14. Install the assembled rotor set (8) onto wear

assembled

plate (9) with rotor (8A) counterbore and seal

rotor set

ring side down and the splines into mesh

with the drive link splines. SEE FIGURE 54.

NOTE

NOTE: It may be necessary to turn one

alignment stud out of the housing (18)

temporarily to assemble rotor set (8) or

manifold (7) over the drive link.

Figure 53

NOTE

NOTE: If necessary, go to the appropri-

ate, “Rotor Set Component Assembly

Procedure.”

NOTE

NOTE: The rotor set rotor counterbore

side must be down against wear plate for

drive link clearance and to maintain the

original rotor-drive link spline contact. A

rotor set without a counterbore and that

was not etched before disassembly can

be reinstalled using the drive link spline

pattern on the rotor splines if apparent,

to determine which side was down. The

rotor set seal ring groove faces toward

the wear plate (9).

Figure 54

43

Parker Hannifin Corporation

Hydraulic Pump/Motor Division

Greeneville, TN 37745 US

HY13-1512-006-M1/USA

Torqmotor™ Service Procedure

Torqmotor™ Assembly

TC, TS, TB, TE, TJ, TF, TG, TH and TL Series

Assemble

15. Apply clean grease to a new seal ring (4)

seal ring

and assemble it in the seal ring groove in

in manifold

the rotor set contact side of manifold (7).

SEE FIGURE 55.

NOTE

NOTE: The manifold (7) is made up of

several plates bonded together perma-

nently to form an integral component.

The manifold surface that must contact

the rotor set has it’s series of irregular

shaped cavities on the largest circumfer-

Figure 55

ence or circle around the inside diameter.

The polished impression left on the mani-

fold by the rotor set is another indication

of which surface must contact the rotor

set.

Assemble

16. Assemble the manifold (7) over the align-

manifold

ment studs and drive link (10) and onto the

rotor set. Be sure the correct manifold sur-

face is against the rotor set. SEE FIGURE

56.

Figure 56

Insert a seal

17. Apply grease to a new seal ring (4) and

in manifold

insert it in the seal ring groove exposed on

the manifold. SEE FIGURE 57.

Figure 57

Assemble

18. Assemble the commutator ring (6) over

commutator ring

alignment studs onto the manifold. SEE

FIGURE 58.

Figure 58

44

Parker Hannifin Corporation

Hydraulic Pump/Motor Division

Greeneville, TN 37745 US

HY13-1512-006-M1/USA

Torqmotor™ Service Procedure

Torqmotor™ Assembly

TC, TS, TB, TE, TJ, TF, TG, TH and TL Series

Assemble

19. Assemble a new seal ring (3) flat side up,

seal &

into commutator (5) and assemble com-

commutator

mutator over the end of drive link (10) onto

manifold (7) with seal ring side up. SEE

FIGURE 59, 60.

Figure 59

Figure 60

Assemble shuttle

20. If shuttle valve components items #21, #22,

valve parts into

#23, #24 were removed from the end cover

end cover

(2) turn a plug (21) with a new o-ring (22),

loosely into one end of the valve cavity in

the end cover. Insert a spring (23) the valve

(24) and the second spring (23) into the

other end of the valve cavity. Turn the sec-

ond plug (21) with a new o-ring (22) loosely

into the end cover valve cavity. 3/16 inch

Allen wrench required. SEE FIGURE 61.

Figure 61

Assemble relief

21. If relief valve components items #21, #22,

valve parts in

#24 were removed from the end cover (2)

end cover

assemble a new o-ring (22) on the two

plugs (21). Assemble a two piece relief valve

(24) in each of the plugs, with the large end

of the conical spring into the plug first and

the small nut of the other valve piece in the

small end of the conical spring. Turn each

of the plug and relief valve assemblies into

the end cover loosely to be torqued later.

3/8 inch Allen or 1 inch Hex socket required.

SEE FIGURE 62.

Figure 62

45

Parker Hannifin Corporation

Hydraulic Pump/Motor Division

Greeneville, TN 37745 US

HY13-1512-006-M1/USA

Torqmotor™ Service Procedure

Torqmotor™ Assembly

TC, TS, TB, TE, TJ, TF, TG, TH and TL Series

Assemble seal

22. Assemble a new seal ring (4) into end cover

ring &

(2) and assemble end cover over the align-

end cover

ment studs and onto the commutator set.

SEE FIGURE 63, 64. If the end cover has

only 5 bolt holes be sure the cover holes are

aligned with the 5 threaded holes in hous-

ing (18). The correct 5 bolt end cover bolt

hole relationship to housing port bosses is

shown in FIGURE 65.

Figure 63

NOTE

NOTE: If the end cover has a valve (24)

or has five bolt holes, use the line you

previously scribed on the cover to radi-

ally align the end cover into its original

position.

Figure 64

Assemble

23. Assemble the 5, 6 or 7 special bolts (1, 1A,

Figure 65

cover bolts

1B or 1C) and screw in finger tight. Remove

and replace the two alignment studs with

bolts after the other bolts are in place. Al-

ternately and progressively tighten the bolts

to pull the end cover and other components

into place with a final torque of 25-30 ft. lbs.

(34-41 N m) for the five TC, TS, TB or six TE

Series 5/16 24 threaded bolts or six TJ bolts

or 50-55 ft. lbs. (68-75 N m) for the seven

TF, TL, TG & TH Series 3/8-24 threaded

bolts. SEE FIGURE 66, 67, 68.

Figure 66

46

Parker Hannifin Corporation

Hydraulic Pump/Motor Division

Greeneville, TN 37745 US

HY13-1512-006-M1/USA

Torqmotor™ Service Procedure

Torqmotor™ Assembly

TC, TS, TB, TE, TJ, TF, TG, TH and TL Series

NOTE

NOTE: The special bolts required for use

with the relief or shuttle valve (24) end

cover assembly (2) are longer than the

bolts required with standard and cover

assembly. Refer to the individual service

parts lists or parts list charts for correct

service part number if replacement is

required.

Figure 67

Figure 68

Torque the

24. Torque the two shuttle valve plug assem-

valve plugs

blies (21) in end cover assembly to 9-12 ft.

lbs. (12-16 N m) if cover is so equipped.

SEE FIGURE 69.

Torque the two relief valve plug assemblies

(21) in end cover assembly to 45-55 ft. lbs.

(61-75 N m) if cover is so equipped.

Figure 69

Thrust

Thrust

Housing

Washers

Washers

Housing

Steel

Washer

Steel

Washer

Seal

Seal

Thrust

Backup

Thrust

Backup

Bearing

Washer

Bearing

Washer

Shaft

Shaft

Not To Scale

Not To Scale

Figure 69A

Large Frame Figure 69B

Small Frame

THE ASSEMBLY OF THE TORQMOTOR™ IS NOW COMPLETE EXCEPT FOR WOODRUFF KEY (12A), NUT

(12B), WASHER (12C), BOLT (12D), LOCKWASHER (12E), RETAINER RING (12F) or PORT O-RINGS (18A) AT

INSTALLATION IF APPLICABLE. PROCEED TO FINAL CHECKS SECTION.

47

Parker Hannifin Corporation

Hydraulic Pump/Motor Division

Greeneville, TN 37745 US

HY13-1512-006-M1/USA

Torqmotor™ Service Procedure

Rotor Set Component Assembly

TC, TS, TB, TE, TJ, TF, TG, TH and TL Series

One Piece Stator Construction

A disassembled rotor (8A) stator (8B) and vanes (8C) that cannot be readily assembled by hand can be assem-

bled by the following procedures.

Assemble stator

1.

Place stator (8B) onto wear plate (9) with

seal ring (4) side down, after following Torq-

motor™ assembly procedures 1 through

13. Be sure the seal ring is in place. SEE

FIGURE 70.

Insert

2.

If assembly alignment studs are not being

two bolts

utilized, align stator bolt holes with wear

plate and housing bolt holes and turn two

bolts (1) finger tight into bolt holes approxi-

mately 180 degrees apart to retain stator

and wear plate stationary.

Figure 70

Assemble rotor

3.

Assemble the rotor (8A), counterbore down

if applicable, into stator (8B), and onto wear

plate (9) with rotor splines into mesh with

drive link (10) splines. SEE FIGURE 71.

NOTE

NOTE: If the manifold side of the rotor

was etched during Torqmotor disassem-

bly, this side should be up. If the rotor is

not etched and does not have a coun-

terbore, use the drive link spline contact

pattern apparent on the rotor splines to

Figure 71

determine the rotor side that must be

against the wear plate.

Assemble vanes

4. Assemble six vanes (8C), or as many vanes

that will readily assemble into the stator

vane pockets. SEE FIGURE 72.

CAUTION

CAUTION: Excessive force used to push

the rotor vanes into place could shear

off the coating applied to the stator vane

pockets.

Figure 72

Assemble full

complement

5. Grasp the output end of coupling shaft (12)

of vanes

with locking pliers or other appropriate

turning device and rotate coupling shaft,

drive link and rotor to seat the rotor and the

assembled vanes (8C) into stator (8B), cre-

ating the necessary clearance to assemble

the seventh or full complement of seven

vanes. Assemble the seven vanes using

minimum force. SEE FIGURE 73.

Remove two

assembled bolts

6. Remove the two assembled bolts (1) if used

to retain stator and wear plate.

Go to Torqmotor™ assembly procedure

#15, to continue Torqmotor™ assembly.

Figure 73

48

Parker Hannifin Corporation

Hydraulic Pump/Motor Division

Greeneville, TN 37745 US

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