Service Repair Manual
Models
Caterpillar Cat 257B3 MULTI TERRAIN LOADER
257B3 Multi Terrain Loader B7H00001-UP (MACHINE) POWERED BY C3.4 IND ...
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Shutdown SIS Previous Screen Product: MULTI TERRAIN LOADER Model: 257B3 MULTI TERRAIN LOADER B7H Configuration: 257B3 Multi Terrain Loader B7H00001-UP (MACHINE) POWERED BY C3.4 IND Engine
Disassembly and Assembly 259B3 Compact Track Loader, 247B3 and 257B3 Multi Terrain Loaders and 216B3, 226B3, 236B3, 242B3 and 252B3 Skid Steer Loaders Power Train Media Number -UENR0251-07
Publication Date -01/07/2018
Date Updated -11/07/2018
i05308829
Piston Motor (Hydrostatic) - Disassemble SMCS - 4351-015 S/N - B7H1-UP S/N - DXZ1-UP S/N - HR21-UP S/N - PWK1-UP S/N - TSL1-UP
Disassembly Procedure Table 1 Required Tools Tool
Part Number
A
1P-1861
Retaining Ring Pliers
1
B
136-1452
Retaining Ring Pliers As
1
1P-0074
Slide Hammer Puller Gp
1
5F-7340
Adapter
1
5F-7342
Adapter
1
C
Part Description
Qty
D
1P-1859
Retaining Ring Pliers
1
E
5P-5197
Retaining Ring Pliers As
1
F
FT-3081
Adapter Plate
1
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257B3 Multi Terrain Loader B7H00001-UP (MACHINE) POWERED BY C3.4 IND ...
G
H
127-8458
Final Drive Bench Ar
1
308-5676
Spanner Wrench Assembly
(1)
329-1669
Spanner Wrench Assembly
(2)
308-5675
Adapter
1
J
1H-3110
Bearing Puller Gp
1
K
5F-7343
Bearing Puller Gp
1
(1)
6 Pin
(2)
7 Pin
Start By: A. Remove the piston motor.
Illustration 1
g01397283
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 bolts (1) and head (2) .
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257B3 Multi Terrain Loader B7H00001-UP (MACHINE) POWERED BY C3.4 IND ...
Illustration 2
g01397317
2. Remove O-ring seals (3) , port plate (4) , and bearing (5) .
Illustration 3
g01397322
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. Remove plug (6) .
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257B3 Multi Terrain Loader B7H00001-UP (MACHINE) POWERED BY C3.4 IND ...
Illustration 4
g01397325
4. Remove O-ring seal (9) from plug (6) . 5. Remove spring (8) and piston (7) . 6. Repeat Step 4 for the opposite side.
Illustration 5
g01397328
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.
7. Remove plug (10) , the O-ring seal, and spring (11) .
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8. Remove plug (14) , the O-ring seal, spring (13) , and spool (12) .
Illustration 6
g01397331
9. Nut (12A) is preset buy supplier, do not remove. 10. Remove plug (12B) , O-ring seal (12C) , O-ring seal (12D) , retainer (12E) , spring (12F) , and valve (12G) .
Illustration 7
g01397333
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11. Remove lip seal (15) .
Illustration 8
g01397334
12. Remove springs (16) , springs (17) , O-ring seal (20) , bearing race (20A) , barrel (19) , and piston (18) . 13. Remove the O-ring seals from piston (18) .
Illustration 9
g01397336
14. Remove pins (21) .
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257B3 Multi Terrain Loader B7H00001-UP (MACHINE) POWERED BY C3.4 IND ...
Illustration 10
g01397339
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.
15. Use Tooling (A) and a suitable press in order to remove retaining ring (22) from barrel (19) .
Illustration 11
g01397345
16. Remove washers (23) and spring (24) from barrel (19) .
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257B3 Multi Terrain Loader B7H00001-UP (MACHINE) POWERED BY C3.4 IND ...
Illustration 12
g01397350
17. Remove piston (25) and the O-ring seal.
Illustration 13
g01397353
18. Remove discs (26) and plates (27) .
Illustration 14
g01397355
19. Remove retainer (28) , bearing (30) , and pistons (29) .
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257B3 Multi Terrain Loader B7H00001-UP (MACHINE) POWERED BY C3.4 IND ...
Illustration 15
g01397358
20. Remove swashplate (31) .
Illustration 16
g01397360
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.
21. Remove pistons (33) and shaft (32) . 22. Use a suitable press in order to remove bearing race (33A) .
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257B3 Multi Terrain Loader B7H00001-UP (MACHINE) POWERED BY C3.4 IN...
Illustration 17
g01397363
23. Remove balls (34) , bearing (35) , and springs (36) .
Illustration 18
g01397364
24. Use Tooling (B) in order to remove retaining ring (37) . 25. Remove plugs (39) and the O-ring seals. 26. Use Tooling (C) in order to remove cover (38) .
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257B3 Multi Terrain Loader B7H00001-UP (MACHINE) POWERED BY C3.4 IN...
Illustration 19
g01397367
27. Remove O-ring seal (40) and carrier assembly (41) .
Illustration 20
g01397369
28. Use Tooling (D) in order to remove retaining rings (43) . 29. Remove gears (42) and gear (44) .
Illustration 21
g01397370
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257B3 Multi Terrain Loader B7H00001-UP (MACHINE) POWERED BY C3.4 IN...
30. Use Tooling (E) in order to remove retaining ring (45) . 31. Remove gear (46) .
Illustration 22
g01397371
32. Use Tooling (D) in order to remove retaining rings (47) . 33. Remove gears (48) .
Illustration 23
g01397375
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257B3 Multi Terrain Loader B7H00001-UP (MACHINE) POWERED BY C3.4 IN...
Illustration 24
g01397376
Illustration 25
g01397377
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34. Drill the stakes from nut (49) . 35. Install spindle (51) and housing (50) onto Tooling (F) . Install Tooling (F) onto the bottom half of Tooling (G) . 36. Install Tooling (H) and Tooling (J) . 37. Install the remaining pieces of Tooling (G) . 38. Remove nut (49) .
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257B3 Multi Terrain Loader B7H00001-UP (MACHINE) POWERED BY C3.4 IN...
Illustration 26
14/15
g01397378
39. Use Tooling (H) and a suitable press in order to remove spindle (51) from housing (50) .
Illustration 27
g01397380
40. Remove Dou-Cone seals (53) and (52) .
Illustration 28
g01397382
41. Use Tooling (J) in order to remove bearing race (54) .
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257B3 Multi Terrain Loader B7H00001-UP (MACHINE) POWERED BY C3.4 IN...
Illustration 29
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g01397384
42. Remove bearing assemblies (55) and bearing race (56) . Copyright 1993 - 2019 Caterpillar Inc.
Sat Nov 9 23:38:09 UTC+0800 2019
All Rights Reserved. Private Network For SIS Licensees.
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257B3 Multi Terrain Loader B7H00001-UP (MACHINE) POWERED BY C3.4 IND ...
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Shutdown SIS Previous Screen Product: MULTI TERRAIN LOADER Model: 257B3 MULTI TERRAIN LOADER B7H Configuration: 257B3 Multi Terrain Loader B7H00001-UP (MACHINE) POWERED BY C3.4 IND Engine
Disassembly and Assembly 259B3 Compact Track Loader, 247B3 and 257B3 Multi Terrain Loaders and 216B3, 226B3, 236B3, 242B3 and 252B3 Skid Steer Loaders Power Train Media Number -UENR0251-07
Publication Date -01/07/2018
Date Updated -11/07/2018
i05308830
Piston Motor (Hydrostatic) - Assemble SMCS - 4351-016 S/N - B7H1-UP S/N - DXZ1-UP S/N - HR21-UP S/N - PWK1-UP S/N - TSL1-UP
Assembly Procedure Table 1 Required Tools Tool
Part Number
A
1P-1861
Retaining Ring Pliers
1
B
136-1452
Retaining Ring Pliers As
1
D
1P-1859
Retaining Ring Pliers
1
E
5P-5197
Retaining Ring Pliers As
1
F
FT-3081
Adapter Plate
1
G
127-8458
Final Drive Bench Ar
1
H
308-5676
Spanner Wrench Assembly
(1)
Spanner Wrench Assembly
(2)
329-1669
Part Description
Qty
1
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257B3 Multi Terrain Loader B7H00001-UP (MACHINE) POWERED BY C3.4 IND ...
308-5675
Adapter
L
312-0202
Seal Installer
1
M
1U-9895
Crossblock
1
(1)
6 Pin
(2)
7 Pin
Illustration 1
g01397384
1. Install bearing assemblies (55) and bearing race (56) .
Illustration 2
g01397517
2. Install bearing race (54) . Note: Refer to Special Instructions, SEHS8364-03 for Dou-Cone seal installation information. 3. Use Tooling (L) in order to install Dou-Cone seal (53) .
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257B3 Multi Terrain Loader B7H00001-UP (MACHINE) POWERED BY C3.4 IND ...
Illustration 3
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g01397518
4. Use Tooling (L) in order to install Dou-Cone seal (52) .
Illustration 4
g01397520
5. Use Tooling (M) and a suitable press in order to install housing (50) onto spindle (51) .
Illustration 5
g01397526
6. Use Tooling (M) , Tooling (H) , and a suitable press in order to position bearing race (56) .
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257B3 Multi Terrain Loader B7H00001-UP (MACHINE) POWERED BY C3.4 IND ...
Illustration 6
g01397375
Illustration 7
g01397376
Illustration 8
g01397377
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7. Install nut (49) . 8. Install spindle (51) and housing (50) onto Tooling (F) . Install Tooling (F) onto the bottom half of Tooling (G) .
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257B3 Multi Terrain Loader B7H00001-UP (MACHINE) POWERED BY C3.4 IND ...
9. Install Tooling (H) and Tooling (J) . 10. Install the remaining pieces of Tooling (G) . 11. Tighten nut (49) to a torque of 3900 ± 100 N·m (2876 ± 74 lb ft). 12. Stake nut (49) .
Illustration 9
g01397371
13. Install gears (48) . 14. Use Tooling (D) in order to install retaining rings (47) .
Illustration 10
g01397370
15. Install gear (46) . 16. Use Tooling (E) in order to install retaining ring (45) .
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257B3 Multi Terrain Loader B7H00001-UP (MACHINE) POWERED BY C3.4 IND ...
Illustration 11
g01397369
17. Install gears (42) and gear (44) . 18. Use Tooling (D) in order to install retaining rings (43) .
Illustration 12
g01397367
19. Install O-ring seal (40) and carrier assembly (41) .
Illustration 13
g01397364
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