Skip to main content

906H2 Caterpillar Compact Wheel Loader Service Manual

Page 1


Product: COMPACT WHEEL LOADER

Model: 906H2 COMPACT WHEEL LOADER JRF

Configuration: 906H2 Wheel Loader JRF00001-UP (MACHINE) POWERED BY C3.3B Engine

Disassembly and Assembly

906, 907 and 908 Compact Wheel Loaders Power Train

Transfer Drive Group (Hydrostatic) (High Speed) - Assemble

SMCS - 3159-016-H7; 4350-016-HZ

Assembly Procedure

Table 1 Required Tools

F 4C-9506 Retaining Compound

G - Loctite 401 Bonder AdhesiveH 6V-2012 Depth Micrometer

- Loctite 567

Illustration 1

g06159976

1. Raise the temperature of bearing (50) and install bearing (50) on shaft assembly (47).

Illustration 2 g01662932

2. Install gear (49) and retaining ring (48).

Illustration 3

3. Install shaft assembly (47) through the top of the housing and position the bearing end through the correct opening.

Illustration 4

4. Install bearing (45B) in cover (45).

g06159323

Illustration 5

g06159305

g06159993

5. Use Tooling (K) to install seal (45A) in cover (45).

Illustration 6

g01662927

6. Apply Tooling (J) to cover (45). Apply Tooling (M) to bolts (46). Position cover (45). Install bolts (46). Tighten bolts (46) to a torque of 50 N路m (37 lb ft).

Illustration 7

g06160431

7. Install plug (44A). Tighten plug (44A) to a torque of 60 N路m (44 lb ft).

Illustration 8 g06160420

8. Raise the temperature of bearing (43) and install bearing (43) on shaft assembly (43A).

Illustration 9 g01662923

9. As you install shaft assembly (43), install gear (42), spacer (41), gear (40) onto shaft assembly (43).

Illustration 10 g06160489

10. Raise the temperature of bearing (44) and install bearing (44). Install race (33). Apply Tooling (E) to bolt (31). Install washer (32) and bolt (31) . Tighten bolt (31) to a torque of 139 N路m (103 lb ft).

Illustration 11

g01662917

11. Apply Tooling (J) to cover (28). Apply Tooling (M) to bolts (27). Position cover (28) and install bolts (27). Tighten bolts (27) to a torque of 50 N路m (37 lb ft). Install yoke (29). Install the O-ring seals that are on the centering ring. Install the centering ring and ring nut (30). Tighten ring nut (30) to a torque of 190 N路m (140 lb ft).

Illustration 12 g06160765

Illustration 13

g02364559

Illustration 14

Cutaway view showing Distance (G).

g02364636

12. Install race (37A). Install bolt (37) and washer (38). Tighten bolt (37) to a torque of 139 N路m (103 lb ft).

13. Remove bolt (37) and washer (38).

14. This step determines the correct shaft preload adjustment for shaft assembly (43). Use Tooling (H) to measure Distance (G). Distance (G) is the measurement from the face of the inner bearing race (44) to the face of shaft assembly (43). The correct shim thickness is determined by subtracting 0.1 mm (0.004 inch) from Distance (G).

15. Apply Tooling (E) to bolt (37). Position shims (39) (not shown), washer (38), and install bolt (37). Tighten bolt (37) to a torque of 139 N路m (103 lb ft).

Illustration 15 g02366796

16. Install shims (36) as required to achieve an end play of 0.0508 mm (0.002 inch) on the shaft assembly.

17. Apply Tooling (J) to cover (35). Apply Tooling (M) to bolts (34). Install bolts (34). Tighten bolts (34) to a torque of 23 N路m (16 lb ft).

Illustration 16 g01662916

18. Install bearing (26).

17

19. Install bearing (25). Install retaining rings (20). Install gear (21). Install washer (22). Install bearing race (23). Install needle bearing (24).

Illustration 18

20. Install gear (18) and spacer (19). Install shaft assembly (17).

Illustration
g01662915
g01662914

Illustration 19 g02367338

Illustration 20 g02367137

Illustration 21 g01662873

21. Install washer (15) and bolt (16). Tighten bolt (16) to a torque of 139 N路m (103 lb ft). Remove washer (15) and bolt (16).

22. This step determines the correct preload adjustment for shaft assembly (17). Use Tooling (H) to measure Distance (X). Distance (X) is the measurement from the face of the inner bearing race to the face of shaft assembly (17). The correct shim thickness is determined by subtracting 0.1 mm (0.004 inch) from Distance (X).

23. Install shims (14) and washer (15). Apply Tooling (E) to bolt (16). Install bolt (16). Tighten bolt (16) to a torque of 139 N路m (103 lb ft).

Illustration 22 g01662913

24. Apply Tooling (J) to cover (13). Apply Tooling (M) to bolts (12). Position cover (13). Install bolts (12). Tighten bolt (12) to a torque of 23 N路m (17 lb ft).

Illustration 23

g01620653

Note: Install shift cylinder (8) with the three detent grooves facing upward.

25. Position fork (11). Apply Tooling (J) to shift cylinder (8). Install shift cylinder (8). Apply Tooling (E) to bolt (10). Install bolt (10). Tighten bolt (10) to a torque of 32 N路m (24 lb ft). Install Tooling (E) to bolt (9). Install the bushing and bolt (9). Tighten bolt (9) to a torque of 5.0 N路m (44.25 lb in).

Illustration 24

g01662853

26. Apply Tooling (J) to flange (7). Apply Tooling (M) to bolts (6). Position flange (7). Install bolts (6). Tighten bolt (37) to a torque of 50 N路m (37 lb ft).

25

27. Apply Tooling (J) to cover (5). Install cover (5). Install bolts (4). Apply Tooling (M) to switch assembly (3). Install switch assembly (3).

Illustration 26

g01620410

28. Install Tooling (A) to hydrostatic transfer drive (1).

Illustration 27

g01620418

Illustration
g06158367

29. Position hydrostatic transfer drive (1). Install bolts (2).

Copyright 1993 - 2021 Caterpillar Inc. All Rights Reserved. Private Network For SIS Licensees.

Thu May 6 10:54:32 UTC+0530 2021

Product: COMPACT WHEEL LOADER

Model: 906H2 COMPACT WHEEL LOADER JRF

Configuration: 906H2 Wheel Loader JRF00001-UP (MACHINE) POWERED BY C3.3B Engine

Disassembly and Assembly 906, 907 and 908 Compact Wheel Loaders Power Train

Transfer Drive Group (Hydrostatic) (High Speed)Disassemble

Disassembly

Procedure Table 1

Start By:

a. Remove the Drive Shaft. Refer to Disassembly and Assembly Manual, "Drive Shaft - Remove and Install".

b. Remove the Piston Motor. Refer to Disassembly and Assembly Manual, "Piston Motor (Hydrostatic) - Remove".

NOTICE

Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.

Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat庐 products.

Dispose of all fluids according to local regulations and mandates.

Personal injury can result from hydraulic oil pressure and hot oil.

Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system.

Make sure all of the work tools have been lowered to the ground, and the oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand.

1. Drain the transfer drive oil into a suitable container. The capacity of the transfer drive is 1.3 L (0.3 US gal).

Illustration 1

g01620410

2. Install Tooling (A) to transfer drive group (1).

Illustration 2

g01620418

3. Remove bolts (2) to remove transfer drive group (1).

Illustration 3

g06158367

4. Remove switch assembly (3). Remove bolts (4). Use bolts (4) in pusher holes to remove cover (5).

Illustration 4

5. Remove bolts (6). Remove flange (7).

g01662853

Illustration 5

g06158377

6. Remove bolt (9) and the bushing. Remove bolt (10). Remove shift cylinder (8). Remove fork (11).

Illustration 6 g01662913

7. Remove bolts (12). Remove cover (13).

7 g01662873

8. Remove bolt (16). Remove washer (15). Remove shims (14).

Illustration

Illustration 8

9. Install Tooling (C) and Tooling (B).

g01621043

Illustration 9 g01662914

10. Remove shaft assembly (17). Remove gear (18) and spacer (19).

10

11. Remove needle bearing (24). Remove bearing race (23). Remove washer (22). Remove gear (21). Remove retaining rings (20). Remove bearing (25).

Illustration 11

12. Remove bearing (26).

Illustration
g01662915
g01662916

Illustration 12 g01662917

13. Remove bolts (27). Remove cover (28). Remove the nut and centering ring (30). Remove yoke (29).

Illustration 13 g06160489

14. Remove bolt (31). Remove washer (32). Remove race (33). Bearing (44) is not removed at this time.

Illustration 14 g01662920

15. Remove bolts (34). Remove cover (35).

Illustration 15 g01662921

16. Remove shim (36). Remove bolt (37). Remove washer (38) and shims (39).

Illustration 16

g01622388

17. Attach Tooling (C) and Tooling (B) to remove the shaft. As you remove the shaft, bearing (44) may drop into the housing. Remove bearing (44).

Illustration 17

g01662923

18. Remove shaft assembly (43). Remove gear (40) and gear (42). Remove spacer (41).

Illustration 18

g06160460

19. Use a suitable press to remove shaft assembly (43A) from bearing (43) .

Illustration 19

20. Remove plug (44A).

g06160431

Illustration 20

21. Remove bolts (46). Remove cover (45).

g01662927

Illustration 21

g01667457

22. Use Tooling (B) to remove cover (45) from shaft assembly (47).

Illustration 22

g06159305

Illustration 23

g06159323

23. Remove seal (45A) from cover (45). Remove bearing (45B) from cover (45).

This is the sample of the manual click on the download link for complete manual

DOWNLOAD LINK

Turn static files into dynamic content formats.

Create聽a聽flipbook