Caterpillar Cat 422F2 Backhoe Loader (Prefix LYF) Service Repair Manual (LYF00001 and up)

Service Repair Manual

Models

422F2 Backhoe Loader

422F2 Side Shift Backhoe Loader LYF00001-UP (MACHINE) POWERED BY C4.4 ...

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Shutdown SIS Previous Screen Product: BACKHOE LOADER Model: 422F2 BACKHOE LOADER LYF Configuration: 422F2 Side Shift Backhoe Loader LYF00001-UP (MACHINE) POWERED BY C4.4 Engine

Disassembly and Assembly 422F2, 427F2, 428F2, 432F2, 434F2 and 444F2 Backhoe Loaders Powertrain Media Number -UENR3743-01

Publication Date -01/06/2015

Date Updated -05/06/2018

i07435290

Transmission (Direct Drive) - Assemble SMCS - 3030-016-DD; 3066-016

Assembly Procedure Table 1 Required Tools Tool

Part Number

A

395-1590

Lifting Eye Assembly

1

B

422-5471

Lifting Eye Assembly

2

C

4C-3652

Spring Compressor

1

D

1P-1859

Retaining Ring Pliers

1

H

137-8102

Spring Compressor

1

J

1P-0510

Driver Gp

1

K

-

Loctite High Flex Gasket Maker

-

L

-

Loctite Retaining Compound 648(1)

-

M

-

Loctite Retaining Compound 243(2)

-

N

8T-5096

Dial Indicator Gp

1

(1)

Loctite 649 is acceptable.

(2)

Loctite 242 is acceptable.

Part Description

Qty

Note: The transmission will be assembled in major components. The major components will then be assembled.

Note: Apply a light film of clean transmission oil to all components before assembly.

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Transmission case

Illustration 1

g03831934

1. Install breather (168).

Illustration 2

g03831928

Illustration 3

g03832503

2. Use Tooling (J) to install lip seal (162) into case (36). Dimension (X) is the depth to install lip seal (162) into case (36). Dimension (X) is 4.00 ± 0.25 mm (0.157 ± 0.010 inch).

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Note: Install the shims behind each bearing cup that was recorded on the disassembly procedure.

3. Install bearing cup (159), bearing cup (160), bearing cup (161), bearing cup (163), and bearing cup (164) into case (36).

Illustration 4

g03831925

4. Install temperature sensor (158). Tighten temperature sensor (158) to a torque of 20 ± 3 N·m (177 ± 27 lb in).

Illustration 5

g03831923

5. Install O-ring seals (156) and (157) onto relief valve (150).

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Illustration 6

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g03831921

6. Install O-ring seals (153), (154), and (155) onto relief valve (148).

Illustration 7

g03831920

7. Install strainer (152) and bolts (151).

Illustration 8

g03831917

Illustration 9

g03833490

8. Install relief valve (148). Tighten relief valve (148) to a torque 46 to 54 N·m (34 to 40 lb ft).

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9. Install relief valve (150). Tighten relief valve (150) to a torque 23 to 30 N·m (204 to 266 lb in).

10. Use Tooling (J) to install lip seal (149) into the case. Dimension (Y) is the depth to install lip seal (149) into the case. Dimension (Y) is 3.00 ± 0.25 mm (0.118 ± 0.010 inch).

11. Install pump (147), the O-ring seal, and bolts (146). Tighten bolts (146) to a torque of 18 to 31 N·m (159 to 274 lb in).

12. Apply Tooling (K) to the case and install plate (145) and bolts (144).

Illustration 10

g03830896

13. Apply Tooling (K) to the case and install torque converter housing (142) and bolts (143).

Illustration 11

g03830828

14. Install bearing cup (136), bearing cup (137), bearing cup (138), bearing cup (139), bearing cup (140), and O-ring seals (141) into the case.

Direct Drive, Input Shaft

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Illustration 12

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g03833578

1. Apply Tooling (L) to the input shaft and install gear (135). Raise temperature of bearing cone (134) and install bearing cone (134) on the input shaft. Install sealing ring (133) onto the input shaft.

Illustration 13

g03831169

2. Install O-ring seals (131) and (132) onto piston (130).

Illustration 14

g03833579

3. Install piston (130).

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Illustration 15

g03830899

4. Install sleeve (129).

Illustration 16

g03830898

Illustration 17

g03830895

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

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Make sure to wear all necessary protective equipment.

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

5. Install spring (128) and retainer (127). Use Tooling (H) and a suitable press to compress spring (128). Use Tooling (D) to install retaining ring (126).

Illustration 18

g03830897

6. Install clutch pack (124) and thrust washer (125).

Illustration 19

g03830894

7. Install end plate (123) and retaining ring (122).

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Illustration 20

g03830891

8. Install thrust bearing (120) and needle bearing (121).

Illustration 21

g03830890

9. Install gear (119) and thrust washer (118).

Illustration 22

g03830888

10. Use Tooling (D) to install retaining ring (117). Install retaining ring (117).

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422F2 Side Shift Backhoe Loader LYF00001-UP (MACHINE) POWERED BY C4....

Illustration 23

g03833580

11. Raise temperature of bearing cone (116) and install on the input shaft.

12. Install sealing rings (115).

Illustration 24

g03830884

13. Install input shaft (114).

Direct Drive, Reverse Shaft

Illustration 25

g03830836

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422F2 Side Shift Backhoe Loader LYF00001-UP (MACHINE) POWERED BY C4....

1. Install O-ring seals (112) and (113).

Illustration 26

g03833581

2. Install piston (111).

Illustration 27

g03830833

3. Install sleeve (110).

Illustration 28

g03830831

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422F2 Side Shift Backhoe Loader LYF00001-UP (MACHINE) POWERED BY C4....

Illustration 29

g03830830

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.

4. Install spring (109) and retainer (108). Use Tooling (H) and a suitable press to compress spring (109). Use Tooling (D) to install retaining ring (107).

Illustration 30

g03830829

5. Install clutch pack (106).

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Illustration 31

g03830827

6. Install end plate (105) and retaining ring (104).

Illustration 32

g03830825

7. Install thrust washer (103) and needle bearing (102) onto the reverse shaft.

Illustration 33

g03833582

8. Install gear (99) and bearing (101) onto the reverse shaft.

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Illustration 34

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g03833583

9. Install thrust washer (100) onto the reverse shaft.

10. Raise temperature of bearing cone (98) and install bearing cone (98) onto the reverse shaft.

11. Install ring seals (97) onto the reverse shaft.

Illustration 35

g03830819

12. Install reverse shaft (96).

Direct Drive Shaft

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422F2 Side Shift Backhoe Loader LYF00001-UP (MACHINE) POWERED BY C4....

Illustration 36

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g03833585

1. Raise temperature of bearing cone (95) and install bearing cone (95) onto the direct drive shaft.

Illustration 37

g03833586

2. Raise temperature of bearing cone (94) and install bearing cone (94) onto the direct drive shaft.

Illustration 38

g03830710

3. Install direct drive shaft (93).

Direct Drive, Rear Output Shaft

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Illustration 39

g03833705

1. Install bearing (92) and bearing spacer (91).

Illustration 40

g03833739

2. Install gear (88) and sleeve (87) onto the rear output shaft.

3. Raise temperature of sleeve (86). Install sleeve (86) and shims (83) onto the rear output shaft.

Illustration 41

g03833740

4. Install bearing spacer (85) and bearing (84) onto the rear output shaft.

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Illustration 42

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g03833742

5. Install synchronizer assembly (82) and shims (81) onto the rear output shaft.

Illustration 43

g03833743

6. Install gear (90) onto the rear output shaft.

7. Apply Tooling (L) to the splines of the rear output shaft and install gear (89).

8. Raise temperature of cone bearing (80) and install cone bearing (80) onto the rear output shaft.

Illustration 44

g03829767

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9. Install needle bearings (79) and (78) onto the rear output shaft.

Illustration 45

g03829766

10. Install gear (77) onto the rear output shaft.

Illustration 46

g03829811

11. Install sleeve (76) onto the rear output shaft.

Illustration 47

g03829765

12. Install synchronizer assembly (75) onto the rear output shaft.

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