908M Caterpillar Compact Wheel Loader Service Repair Manual

SERVICE REPAIR MANUAL 908M WHEEL LOADER

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

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  Product: WHEEL LOADER Model: 908M WHEEL LOADER Z88 Configuration: 908M Compact Wheel Loader Z8800001-UP (MACHINE) POWERED BY C3.3B Engine

Disassembly and Assembly 906, 907 and 908 Compact Wheel Loaders Power Train Media Number -KENR5211-04

Publication Date -01/06/2012

Date Updated -26/04/2017

i03276340

Wheel and Brake Group (Front) (High Speed Axle) - Assemble SMCS - 4006-016-FR

Assembly procedure Table 1 Required Tools Tool

Part Number

Part Description

Qty

A

1P-0520

Driver Group

1

Illustration 1

g01507987

1. Install seals (19) and (20) on the brake piston (16).

Illustration 2

g01507962

2. Install three pins (17) to the brake housing (18).

Illustration 3

g01507939

3. Install brake piston (16). Install six brake adjust kits (15) to the brake piston (16). Torque brake kits (15) to a torque of 10 N·m (7.4 lb ft).

Illustration 4

g01471777

4. Lower temperature on bearing cups (12) and (13) in order to install bearing cups (12) and (13) to the hub.

5. Use Tooling (A) in order to install seal (14) to the hub.

Illustration 5

6. Install bearing (11) to the flange assembly (9).

g01472112

This is the sample of the manual Click on the download link for complete Manual

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Illustration 6

7. Install flange assembly (9) to brake shaft group (10).

8. Install bearing cone (8).

g01471776

Illustration 7

g01471774

9. Install carrier wheel (7) to gear (4).

10. Install bushings (6).

11. Install retaining ring (5) to gear assembly.

12. Install gear assembly to the wheel and brake group.

Illustration 8

g01471752

13. Install bolts (1). Tighten the bolts (1) to a torque of 120 N·m (88.5 lb ft).

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  Product: WHEEL LOADER Model: 908M WHEEL LOADER Z88 Configuration: 908M Compact Wheel Loader Z8800001-UP (MACHINE) POWERED BY C3.3B Engine

Disassembly and Assembly 906, 907 and 908 Compact Wheel Loaders Power Train Media Number -KENR5211-04

Publication Date -01/06/2012

Date Updated -26/04/2017

i02954908

Wheel and Brake Group (Front) (High Speed Axle) Disassemble SMCS - 4006-015-FR

Disassembly Procedure Table 1 Required Tools Tool

Part Number

Part Description

Qty

A

1P-0074

Slide Hammer

1

B

5F-7244

Puller Group

1

Start By: a. Remove the final drive planetary. Refer to Disassembly and Assembly Manual, "Final Drive Planetary".

Illustration 1

g01471752

1. Remove bolts (1).

Illustration 2

g01471773

2. Install two bolts (2), as shown above. Turn bolts (2) evenly in order to remove gear assembly (3).

Illustration 3

3. Remove retaining ring (5).

4. Remove bushings (6).

5. Remove carrier wheel (7) from gear (4).

g01471774

Illustration 4

g01471776

6. Separate flange assembly (9) from brake shaft group (10).

7. Remove bearing cone (8).

Illustration 5

8. Remove bearing cone (11) from flange assembly (9).

g01472112

Illustration 6

g01471777

9. Remove seal (14).

10. Use Tooling (A) and (B) in order to remove bearing cups (12) and (13) from the flange assembly (9).

Note: The springs are under pressure.

Illustration 7

g01507939

11. Remove six brake adjust kits (15). Remove brake piston (16).

Illustration 8

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12. Remove three pins (17) from the brake housing (18).

Illustration 9

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13. Remove seal (19) and (20) from the brake piston (16).

14. Repeat Step 1 through 13 for the other side.

Copyright 1993 - 2021 Caterpillar Inc. All Rights Reserved.

Private Network For SIS Licensees.

Sat Jun 26 16:34:19 UTC+0530 2021

  Product: WHEEL LOADER Model: 908M WHEEL LOADER Z88 Configuration: 908M Compact Wheel Loader Z8800001-UP (MACHINE) POWERED BY C3.3B Engine

Disassembly and Assembly 906, 907 and 908 Compact Wheel Loaders Power Train Media Number -KENR5211-04

Publication Date -01/06/2012

Date Updated -26/04/2017

i02926967

Wheel and Brake Group (Front) (High Speed Axle) - Remove SMCS - 4006-011-FR

Removal Procedure Start By: a. Connect the steering frame lock. Refer to Disassembly and Assembly, "Steering Frame Lock Separate and Connect". b. Release hydraulic system pressure. Refer to Disassembly and Assembly, "Hydraulic System Pressure - Release". c. Remove the Tire and Rim. Refer to Disassembly and Assembly Manual, "Tire and Rim Remove and Install". d. Remove the Final Drive Planetary. Refer to Disassembly and Assembly Manual, "Final Drive Planetary - Remove".

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 attachments have been lowered, 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.

Personal injury or death can result from improper lifting or blocking.

When a hoist or jack is used to lift any part or component, stand clear of the area. Be sure the hoist or jack has the correct capacity to lift a component. Install blocks or stands before performance of any work under a heavy component.

Approximate weights of the components are shown. Clean all surfaces where parts are to be installed.

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, "Caterpillar Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Caterpillar products.

Dispose of all fluids according to local regulations and mandates.

Note: Put identification marks on the line and all parts for installation purposes. Plug the lines. This will help to prevent fluid loss and this helps to keep contaminants from entering the system.

1. Drain the oil from the axle housing into a suitable container. The capacity of the axle housing is 8 L (2.1 US gal).

Illustration 1

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2. Disconnect hose assembly (1).

Illustration 2

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3. Use a suitable lifting device to support the brake and wheel group (2). The weight of the brake and wheel group (2) is approximately 41 kg (90 lb).

4. Remove ten bolts (3). Remove the purging screw (4).

5. Remove the wheel and brake group (2).

Illustration 3

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6. Remove brake disc (5) and shaft coupling (7) from the front axle (6).

Illustration 4

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7. Remove brake plate (8).

8. Repeat Step 3 through 6 for the other side.

Copyright 1993 - 2021 Caterpillar Inc. All Rights Reserved.

Sat Jun 26 16:33:53 UTC+0530 2021

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  Product: WHEEL LOADER Model: 908M WHEEL LOADER Z88 Configuration: 908M Compact Wheel Loader Z8800001-UP (MACHINE) POWERED BY C3.3B Engine

Disassembly and Assembly 906, 907 and 908 Compact Wheel Loaders Power Train Media Number -KENR5211-04

Publication Date -01/06/2012

Date Updated -26/04/2017

i05034358

Differential and Bevel Gear (Locking) - Assemble SMCS - 3254-016; 3256-016; 3270-016

Assembly Procedure Table 1 Required Tools Tools

Part Number

Part Description

Qty

A

1P-1861

Retaining Ring Pliers

1

B

1P-0510

Driver Gp

1

C

220-8430

Pinion Wrench

1

D

220-8428

Spanner Wrench

1

E

8H-0663

Bearing Puller Gp

1

F

235-2796

Measuring Shaft Assembly

1

G

235-2795

Plate

2

H

6V-2012

Depth Micrometer

1

J

8T-5096

Dial Indicator Gp

1

Illustration 1

g01666677

1. Install retaining ring (48) on pin (44). Install spacer (47) and spring (46) on pin (44). Position fork (45). Reposition pin (44).

Illustration 2

2. Install bushing (43).

g01666713

Illustration 3

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Personal injury can result from being struck by parts propelled by a released spring force.

Make sure to wear all necessary protective equipment.

Follow the recommended procedure and use all recommended tooling to release the spring force.

3. Position cover (42). Install bolts (41).

Illustration 4

g01666095

4. Install spring (39). Install spacer (40).

Illustration 5

g01666093

Personal injury can result from being struck by parts propelled by a released spring force.

Make sure to wear all necessary protective equipment.

Follow the recommended procedure and use all recommended tooling to release the spring force.

5. Install retaining ring (37). Install the piston and O-ring seal (38).

Illustration 6

g01666034

Personal injury can result from being struck by parts propelled by a released spring force.

Make sure to wear all necessary protective equipment.

Follow the recommended procedure and use all recommended tooling to release the spring force.

6. Position support (36). Install bolts (35).

Illustration 7

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7. Use Tooling (B) to install bearing cups (29) in housing (23).

Illustration 8

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8. Install shim (34) and bearing cone (33) to pinion (26).

Illustration 9

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9. Install pinion (26) in housing (23).

10. Install bearing cone (27) to pinion (26).

Illustration 10

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11. Install nut (25) and the washer. Use Tooling (C) and (D) in order to tighten nut (25) and remove the end play.

Illustration 11

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12. Rotate housing (23).

13. Use Tooling (F), Tooling (G), and Tooling (H) to measure the distance to the pinion. This will determine if the pinion is in the correct position. Record the measurement. Compare the measurement to the number on the face of the pinion.

14. Use the following formula: Measurement (mm) + 35.25mm = stamp (mm). If depth is not correct, adjust shim (31).

Illustration 12

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15. Remove nut (25) and the washer.

Illustration 13

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16. Remove bearing cone (27) from pinion (26).

17. Remove pinion (26) from housing (23).

Illustration 14

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18. Install washer (32) to pinion (26).

19. Install a new crush sleeve (31) to pinion (26).

20. Install washer (30) to pinion (26).

Illustration 15

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21. Install pinion (26) to housing (23).

22. Install bearing cone (27) to pinion (26).

Illustration 16

g01665918

23. Install nut (25) and the washer. Use Tooling (C) and (D) in order to ensure that the bearings are seated.

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