Service Repair Manual
Models
420F2 Backhoe Loader
420F2 Center Pivot Backhoe Loader LYB00001-UP (MACHINE) POWERED BY C4...
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Shutdown SIS Previous Screen Product: BACKHOE LOADER Model: 420F2 BACKHOE LOADER LYB Configuration: 420F2 Center Pivot Backhoe Loader LYB00001-UP (MACHINE) POWERED BY C4.4 Engine
Disassembly and Assembly 415F2, 416F2, 420F2 IT, 420F2 ST, 430F2 IT and 430F2 ST Backhoe Loaders Power Train Media Number -UENR5021-03
Publication Date -01/05/2015
Date Updated -05/06/2018
i06145783
Transmission (Direct Drive) - Disassemble SMCS - 3030-015-DD; 3066-015
Disassembly Procedure Table 1 Required Tools Tool
Part Number
Part Description
Qty
A
395-1590
Lifting Eye Assembly
2
B
422-5471
Lifting Eye Assembly
1
C
4C-3652
Spring Compressor
1
D
1P-1859
Retaining Ring Pliers
1
E
8H-0663
Bearing Puller Gp
1
F
8B-7551
Bearing Puller Gp
1
G
1U-6400
Three Jaw Puller
1
H
137-8102
Spring Compressor
1
Start By: a. Remove the transmission.
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420F2 Center Pivot Backhoe Loader LYB00001-UP (MACHINE) POWERED BY C4...
Illustration 1
g03827943
1. Use two people to remove torque converter (1). The weight of torque converter (1) is approximately 23 kg (51 lb). Remove torque converter (1) from transmission (2). 2. Remove bolt (4), the washer, and yoke (3) from transmission (2).
Illustration 2
g03828843
3. Remove shaft (5) from transmission (2). 4. Remove bolts (7) and gear shift (6) from transmission (2). 5. Remove bolts (10) and support assemblies (8) from transmission (2). 6. Remove bolt (11), the washer, and yoke (9) from transmission (2).
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420F2 Center Pivot Backhoe Loader LYB00001-UP (MACHINE) POWERED BY C4...
Illustration 3
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7. Remove bolts (13) and solenoid valve (12) from transmission (2).
Illustration 4
g03828845
Illustration 5
g03828846
Personal injury can result from being struck by parts propelled by a released spring force.
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420F2 Center Pivot Backhoe Loader LYB00001-UP (MACHINE) POWERED BY C4...
Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force.
8. Remove head (14) from solenoid valve (12). Remove O-ring seal (15) from head (14). 9. Remove spring (16), carrier (17), spring (18), and piston (19) from solenoid valve (12).
Illustration 6
g03828847
Illustration 7
g03828848
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.
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10. Remove plug (20) from solenoid valve (12). Remove O-ring seal (21) from plug (20). 11. Remove spring (22) and poppet (23) from solenoid valve (12).
Illustration 8
g03828849
Illustration 9
g03828850
12. Remove self locking nut (24), O-ring seal (26) coil assembly (25), and O-ring seal (27) from solenoid valve (12).
Illustration 10
g03828851
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420F2 Center Pivot Backhoe Loader LYB00001-UP (MACHINE) POWERED BY C4...
Illustration 11
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g03828852
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.
13. Remove tube assembly (28) from solenoid valve (12). Remove O-ring seal (29) from tube assembly (28). 14. Remove spring (30), push rod (31), washer (32), and spool (33) from solenoid valve (12).
Illustration 12
g03828876
15. Remove O-ring seals (34) from solenoid valve (12). 16. Repeat Step 8 through Step 14 for the opposite side of solenoid valve (12).
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420F2 Center Pivot Backhoe Loader LYB00001-UP (MACHINE) POWERED BY C4...
Illustration 13
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g03828878
17. Attach Tooling (A) and a suitable lifting device to transmission (2). The weight of transmission (2) is approximately 255 kg (562 lb). Place transmission (2) on a suitable work bench. Secure transmission (2) to the suitable work bench. 18. Remove bolts (35) that secure the case.
Illustration 14
g03828879
19. Attach Tooling (A) and Tooling (B) to case (36). The weight of case (36) is approximately 45 kg (100 lb). Remove case (36) from the transmission.
Direct Drive, Front Output Shaft
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420F2 Center Pivot Backhoe Loader LYB00001-UP (MACHINE) POWERED BY C4...
Illustration 15
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g03828880
1. Remove front output shaft (37).
Illustration 16
g03829476
Illustration 17
g03829477
2. Use suitable press to remove bearing cone (38). 3. Remove bearing cone (38), thrust washer (39), needle bearing (40), and gear (41) from the shaft.
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4. Remove roller bearing (42), spacer (43), roller bearing (44), needle bearing (45), and thrust washer (46) from the shaft.
Illustration 18
g03829478
5. Remove retaining ring (47).
Illustration 19
g03829479
6. Remove plate (48).
Illustration 20
g03829480
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420F2 Center Pivot Backhoe Loader LYB00001-UP (MACHINE) POWERED BY ...
Illustration 21
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g03829481
7. Remove friction disks (49) and friction clutches (50).
Illustration 22
g03829482
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.
8. Use a suitable press and Tooling (C) to compress spring assembly (52). Use Tooling (D) to remove retaining ring (51).
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420F2 Center Pivot Backhoe Loader LYB00001-UP (MACHINE) POWERED BY ...
Illustration 23
g03829483
9. Remove spring assembly (52) and retainer (53).
Illustration 24
g03829484
10. Release piston (54) by applying 207 kPa (30 psi) of air pressure into the lube passage as indicated. 11. Remove seal ring (55).
Illustration 25
g03829485
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12. Use Tooling (E) and a suitable press to remove bearing cone (56). Remove bearing cone (56).
Direct Drive, Rear Output Shaft
Illustration 26
g03829593
Illustration 27
g03829664
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.
1. Remove plug (57), spring (59), and ball (58).
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420F2 Center Pivot Backhoe Loader LYB00001-UP (MACHINE) POWERED BY ...
Illustration 28
g03829665
Illustration 29
g03829668
2. Remove screws (60) from the shift forks. Remove rod (61) and ball (62).
Illustration 30
g03829669
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.
Note: Reinstalling plug (57) keeps the spring and the ball from being propelled from the transmission case. 3. Reinstall plug (57) into the transmission case. 4. Remove rod (63) and shift forks (64).
Illustration 31
g03829670
Illustration 32
g03829671
Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment.
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420F2 Center Pivot Backhoe Loader LYB00001-UP (MACHINE) POWERED BY ...
Follow the recommended procedure and use all recommended tooling to release the spring force.
5. Remove plug (57), ball (67), and spring (66). 6. Remove rear output shaft (65).
Illustration 33
g03829672
Illustration 34
g03829763
7. Remove screw (69) and washer (68). 8. Use Tooling (F) and a suitable press to remove bearing cone (70) and gear (71).
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420F2 Center Pivot Backhoe Loader LYB00001-UP (MACHINE) POWERED BY ...
Illustration 35
g03829764
9. Remove needle bearings (72) and (73). 10. Use Tooling (D) to remove lock ring (74).
Illustration 36
g03829765
11. Remove synchronizer assembly (75).
Illustration 37
g03829811
12. Remove sleeve (76).
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420F2 Center Pivot Backhoe Loader LYB00001-UP (MACHINE) POWERED BY ...
Illustration 38
g03829766
13. Remove gear (77).
Illustration 39
g03829767
14. Remove needle bearings (78) and (79).
Illustration 40
g03829768
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420F2 Center Pivot Backhoe Loader LYB00001-UP (MACHINE) POWERED BY ...
Illustration 41
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g03829812
15. Use a suitable press to remove bearing cone (80) from the shaft. Remove bearing cone (80), gear (89), gear (90). 16. Remove shims (81), synchronizer assembly (82), and shims (83). 17. Remove bearing (84), bearing spacer (85), and sleeve (86). 18. Remove sleeve (87), gear (88), bearing spacer (91), and bearing (92).
Direct Drive Shaft
Illustration 42
g03830710
1. Remove direct drive shaft (93).
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