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Service Repair Manual

Models

Caterpillar Cat 236B3 SKID STEER LOADER


236B3 Skid Steer Loader A9H00001-UP (MACHINE) POWERED BY C3.4 IND Eng...

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Shutdown SIS Previous Screen Product: SKID STEER LOADER Model: 236B3 SKID STEER LOADER A9H Configuration: 236B3 Skid Steer Loader A9H00001-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

i02797709

System Pressure - Release - Hydraulic SMCS - 4350-553-PX; 5050-553-PX

Release Procedure

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 work tools have been lowered to the ground, and the 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.

1. Lower the armrest. 2. Turn the engine start switch to the ON position. Disengage the parking brake. 3. Press each side of the auxiliary hydraulic control switch (A1 and A2) for one to two seconds in order to release the auxiliary system pressure. Keep the joystick control in the NEUTRAL position while you press the auxiliary hydraulic control switch (A1 and A2). 4. Engage the parking brake. 5. Start the engine and run the engine for at least 15 seconds in order to recharge the accumulator.

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6. Turn the engine start switch to the OFF position. 7. Do not raise the armrest. 8. Immediately, turn the engine start switch to the ON position. Disengage the parking brake. 9. Move both of the joystick controls through all of the operating positions in order to release the hydraulic pressure in the work tool system and the hydrostatic system. 10. Turn the engine start switch to the OFF position. Copyright 1993 - 2019 Caterpillar Inc.

Fri Oct 25 14:29:23 UTC+0800 2019

All Rights Reserved. Private Network For SIS Licensees.

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236B3 Skid Steer Loader A9H00001-UP (MACHINE) POWERED BY C3.4 IND Eng...

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Shutdown SIS Previous Screen Product: SKID STEER LOADER Model: 236B3 SKID STEER LOADER A9H Configuration: 236B3 Skid Steer Loader A9H00001-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

i05396775

Piston Pump (Hydrostatic) - Remove SMCS - 5070-011-H7

Removal Procedure Table 1 Required Tools Tool

Part Number

Part Description

Qty

A

247-4296

Pump Support

1

B

138-7575

Link Bracket

1

159-3327(1)

Wrench Adapter

1

387-9124(2)

Wrench Adapter

1

C (1)

For use with hex head bolts.

(2)

For use with 12 point head bolts

Start By: a. Remove the hydraulic tank. Refer to Disassembly and Assembly, "Hydraulic Tank Remove". b. Remove the gear pump. Refer to Disassembly and Assembly, "Gear Pump - Remove and Install". Note: Put identification marks on all hoses, on all hose assemblies, on all wires, and on all tube assemblies for installation purposes. Plug all hose assemblies and all tube assemblies.

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236B3 Skid Steer Loader A9H00001-UP (MACHINE) POWERED BY C3.4 IND Eng...

Illustration 1

g01051392

1. Disconnect hose assemblies (1).

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236B3 Skid Steer Loader A9H00001-UP (MACHINE) POWERED BY C3.4 IND Eng...

Illustration 2

g01051393

2. Disconnect hose assemblies (2). 3. Loosen clamp (3). 4. Disconnect hose (4).

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236B3 Skid Steer Loader A9H00001-UP (MACHINE) POWERED BY C3.4 IND Eng...

Illustration 3

g01053175

5. Use a suitable lifting device, Tooling (A), and Tooling (B) to support piston pump (5).

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236B3 Skid Steer Loader A9H00001-UP (MACHINE) POWERED BY C3.4 IND Eng...

Illustration 4

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g01053307

6. Use Tooling (C) to remove bolt (6). 7. Repeat Step 6 for the other side. 8. Remove piston pump (5). The weight of the piston pump is approximately 61 kg (134 lb). Copyright 1993 - 2019 Caterpillar Inc.

Fri Oct 25 14:30:22 UTC+0800 2019

All Rights Reserved. Private Network For SIS Licensees.

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236B3 Skid Steer Loader A9H00001-UP (MACHINE) POWERED BY C3.4 IND Eng...

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Shutdown SIS Previous Screen Product: SKID STEER LOADER Model: 236B3 SKID STEER LOADER A9H Configuration: 236B3 Skid Steer Loader A9H00001-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

i02358306

Piston Pump (Hydrostatic) - Disassemble SMCS - 5070-015-H7

Disassembly Procedure Table 1 Required Tools Tool

Part Number

Part Description

Qty

A

9U-7289

Ruler

1

B

1P-1861

Retaining Ring Pliers

1

C

138-7576

Link Brackets

2

D

8T-4956

Bolts (M12 - 1.75 - 35 MM)

2

E

8T-4223

Hard Washers (13.5 - 25.5 - 3 MM THK)

2

F

1P-0510

Driver Gp

1

G

1P-1854

Retaining Ring Pliers

1

H

1U-7600

Slide Hammer Puller Gp

1

J

1P-1860

Retaining Ring Pliers

1

K

8H-0663

Bearing Puller Gp

1

Start By: a. Remove the piston pump. Refer to Disassembly and Assembly, "Piston Pump - Remove". Note: The following procedure is intended for cleaning purposes only.

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236B3 Skid Steer Loader A9H00001-UP (MACHINE) POWERED BY C3.4 IND Eng...

Illustration 1

g00903455

1. Remove the fittings and connectors (1). 2. Remove speed sensing valve (2).

Illustration 2

g00903457

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 cover (3) and the spring for the crossover relief valve.

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236B3 Skid Steer Loader A9H00001-UP (MACHINE) POWERED BY C3.4 IND Eng...

Illustration 3

g00903461

Illustration 4

g00903467

4. Remove seat (4). 5. Note the orientation of spring (5). 6. Remove O-ring seal (6) from cover (3). 7. Remove back up ring (7) from cover (3). 8. Repeat Step 3 through Step 7 for the other covers.

Illustration 5

g00903500

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236B3 Skid Steer Loader A9H00001-UP (MACHINE) POWERED BY C3.4 IND Eng...

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.

9. Remove plug (8) for the charge relief valve.

Illustration 6

g00903502

Illustration 7

g00903503

10. Remove seat (9). 11. Remove shims (12). 12. Remove spring (13). 13. Remove seal (11) from plug (8).

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236B3 Skid Steer Loader A9H00001-UP (MACHINE) POWERED BY C3.4 IND Eng...

14. Remove O-ring seal (10) from plug (8).

Illustration 8

g01178122

15. Use Tooling (A) to measure the distance from the stud to the nut. Record the distance for assembly purposes.

Illustration 9

g00904929

16. Remove screws (14). 17. Remove nut (15). 18. Remove cover (16).

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236B3 Skid Steer Loader A9H00001-UP (MACHINE) POWERED BY C3.4 IND Eng...

Illustration 10

g00904930

19. Remove O-ring seal (17) from cover (16).

Illustration 11

g00904933

20. Use Tooling (B) to remove retaining ring (18). Remove actuator assembly (19).

Illustration 12

g00905018

21. Remove O-ring seal (20) from actuator assembly (19).

Illustration 13

g01054368

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236B3 Skid Steer Loader A9H00001-UP (MACHINE) POWERED BY C3.4 IND Eng...

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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.

Illustration 14

g01054370

Note: Keepers (21) must be marked for assembly. Do not mix keepers (21). The keepers are not interchangeable. 22. Place actuator assembly (19) in a suitable press. 23. Remove keepers (21). 24. Remove shaft (26). 25. Remove spring retainer (22). 26. Remove spring (23). 27. Remove spring retainer (24). 28. Remove spacer (25). 29. Repeat Step 15 through Step 28 for the other cover.

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236B3 Skid Steer Loader A9H00001-UP (MACHINE) POWERED BY C3.4 IND Eng...

Illustration 15

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g01178123

30. Remove caps (27). 31. Remove connectors (28). 32. Remove fitting (29). 33. Remove adapter (30).

Illustration 16

g00905035

Note: Mark the location of the notch in stud (31) by making a corresponding mark on the housing for installation purposes. 34. Use Tooling (A) to measure the distance from stud (31) to nut (32). Record the distance for assembly purposes. 35. Remove stud (31) and nut (32). 36. Repeat Step 34 and Step 35 for the other stud.

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236B3 Skid Steer Loader A9H00001-UP (MACHINE) POWERED BY C3.4 IND Eng...

Illustration 17

9/17

g01178125

37. Remove connector (33). 38. Remove caps (34). 39. Remove fittings (35).

Illustration 18

g00905224

40. Use Tooling (A) to measure the distance from studs (36) to nuts (37). Record the distance for assembly purposes. 41. Remove studs (36) and nuts (37).

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236B3 Skid Steer Loader A9H00001-UP (MACHINE) POWERED BY C3.4 IND E...

Illustration 19

10/17

g01178127

42. Remove bolts (38) from cover (39).

Illustration 20

g00973868

43. Use a suitable lifting device, Tooling (C), Tooling (D), and Tooling (E) to raise the piston pump housing.

Illustration 21

g01178130

Note: Mark the port plates for assembly. Port plates are not interchangeable. 44. Remove port plate (40).

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236B3 Skid Steer Loader A9H00001-UP (MACHINE) POWERED BY C3.4 IND E...

Illustration 22

g01178131

45. Remove plug (41) and the O-ring seal.

Illustration 23

g01178132

46. Remove slotted pin (42). 47. Repeat Step 45 and Step 46 for the other side.

Illustration 24

g01178133

48. Remove the rotating assembly and swashplate (43). 49. Remove linkage (44).

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236B3 Skid Steer Loader A9H00001-UP (MACHINE) POWERED BY C3.4 IND E...

Illustration 25

g01178135

50. Remove bearing assemblies (45) and (46). 51. Remove swashplate (47).

Illustration 26

g01178137

Note: Mark the reaction plate assembly and the barrel. 52. Remove reaction plate assembly (48) from barrel (49).

Illustration 27

g00905445

53. Remove the retainer and shims (51) from barrel (50).

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236B3 Skid Steer Loader A9H00001-UP (MACHINE) POWERED BY C3.4 IND E...

Illustration 28

g00973870

Illustration 29

g00905448

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.

54. Place barrel (50) in a suitable press. 55. Use Tooling (F) and Tooling (G) to remove retaining ring (52) and spring (55). 56. Remove washer (54). 57. Remove pins (53).

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236B3 Skid Steer Loader A9H00001-UP (MACHINE) POWERED BY C3.4 IND E...

Illustration 30

g00905648

58. Remove bearing races (56) from pins (57).

Illustration 31

g00905650

59. Remove O-ring seal (58). 60. Inspect dowel (59) for damage.

Illustration 32

g00905577

61. Use Tooling (B) to remove retaining ring (60).

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236B3 Skid Steer Loader A9H00001-UP (MACHINE) POWERED BY C3.4 IND E...

Illustration 33

g00973871

62. Use Tooling (H) to remove seal (61).

Illustration 34

g00905582

63. Use Tooling (B) to remove retaining ring (62).

Illustration 35

g00905653

64. Remove shaft (63).

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236B3 Skid Steer Loader A9H00001-UP (MACHINE) POWERED BY C3.4 IND E...

Illustration 36

g00973872

65. Use Tooling (J) to remove retaining ring (64).

Illustration 37

g00973873

66. Use a suitable press and Tooling (K) to remove bearing (65).

Illustration 38

g00906134

67. Remove bearing (66).

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236B3 Skid Steer Loader A9H00001-UP (MACHINE) POWERED BY C3.4 IND E...

Illustration 39

17/17

g00906511

68. Remove actuator (67).

Illustration 40

g00906515

69. Remove seal (68). 70. Remove liner (69). 71. Repeat Step 42 through Step 70 for the other end of the piston pump. Copyright 1993 - 2019 Caterpillar Inc.

Fri Oct 25 14:31:21 UTC+0800 2019

All Rights Reserved. Private Network For SIS Licensees.

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Caterpillar Cat 236B3 SKID STEER LOADER (Prefix A9H) Service Repair Manual (A9H00001 and up)  

Caterpillar Cat 236B3 SKID STEER LOADER (Prefix A9H) Service Repair Manual (A9H00001 and up)  

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