Caterpillar Cat 257B3 MULTI TERRAIN LOADER (Prefix B7H) Service Repair Manual (B7H00001 and up).pdf

Service Repair Manual
Models
Caterpillar Cat 257B3 MULTI
TERRAIN LOADER

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 Part Description Qty
A 1P-1861 Retaining Ring Pliers 1
B 136-1452 Retaining Ring Pliers As 1
C
1P-0074 Slide Hammer Puller Gp 1
5F-7340 Adapter 1
5F-7342 Adapter 1
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 ...
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https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...

G 127-8458 Final Drive Bench Ar 1
H
308-5676 Spanner Wrench Assembly (1)
1
308-5675 Adapter
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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2. Remove O-ring seals (3) , port plate (4) , and bearing (5) .
3. Remove plug (6) .
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4. Remove O-ring seal (9) from plug (6) .
5. Remove spring (8) and piston (7) .
6. Repeat Step 4 for the opposite side.
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) .
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) .
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11. Remove lip seal (15) .
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) .
14. Remove pins (21) .
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15. Use Tooling (A) and a suitable press in order to remove retaining ring (22) from barrel
(19) .
16. Remove washers (23) and spring (24) from barrel (19) .
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17. Remove piston (25) and the O-ring seal.
18. Remove discs (26) and plates (27) .
19. Remove retainer (28) , bearing (30) , and pistons (29) .
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20. Remove swashplate (31) .
21. Remove pistons (33) and shaft (32) .
22. Use a suitable press in order to remove bearing race (33A) .
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23. Remove balls (34) , bearing (35) , and springs (36) .
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...
2019/11/9

27. Remove O-ring seal (40) and carrier assembly (41) .
28. Use Tooling (D) in order to remove retaining rings (43) .
29. Remove gears (42) and gear (44) .
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30. Use Tooling (E) in order to remove retaining ring (45) .
31. Remove gear (46) .
32. Use Tooling (D) in order to remove retaining rings (47) .
33. Remove gears (48) .
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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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39. Use Tooling (H) and a suitable press in order to remove spindle (51) from housing (50) .
40. Remove Dou-Cone seals (53) and (52) .
41. Use Tooling (J) in order to remove bearing race (54) .
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42. Remove bearing assemblies (55) and bearing race (56) .
Copyright 1993 - 2019 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Sat Nov 9 23:38:09 UTC+0800 2019
15/15
2019/11/9

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 Part Description Qty
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)
1
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308-5675 Adapter
L 312-0202 Seal Installer 1
M 1U-9895 Crossblock 1
( 1 )
6 Pin
( 2 )
7 Pin
1. Install bearing assemblies (55) and bearing race (56) .
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) .
2/15
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4. Use Tooling (L) in order to install Dou-Cone seal (52) .
5. Use Tooling (M) and a suitable press in order to install housing (50) onto spindle (51) .
6. Use Tooling (M) , Tooling (H) , and a suitable press in order to position bearing race (56) .
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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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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) .
13. Install gears (48) .
14. Use Tooling (D) in order to install retaining rings (47) .
15. Install gear (46) .
16. Use Tooling (E) in order to install retaining ring (45) .
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17. Install gears (42) and gear (44) .
18. Use Tooling (D) in order to install retaining rings (43) .
19. Install O-ring seal (40) and carrier assembly (41) .
6/15
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Caterpillar Cat 257B3 MULTI TERRAIN LOADER (Prefix B7H) Service Repair Manual (B7H00001 and up).pdf

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Caterpillar Cat 257B3 MULTI TERRAIN LOADER (Prefix B7H) Service Repair Manual (B7H00001 and up).pdf