313B ExcavatorEngine Supplement Caterpillar

Removal Procedure

Start By:

1. Remove the counterweight.

Reference: Refer to Disassembly and Assembly, "Counterweight - Remove and Install".

Show/hide table

Accidental machine starting can cause injury or death to personnel working on the machine. To avoid accidental machine starting, turn the battery disconnect switch to the OFF position and remove the key. If the machine is not equipped with a battery disconnect switch, disconnect the battery cables from the battery and tape the battery clamps. Place a do not operate tag at the battery disconnect switch location to inform personnel that the machine is being worked on.

Show/hide table

At operating temperature, the hydraulic oil is hot and under pressure. Hot oils can cause burns. To prevent possible personal injury, release the pressure in the implement hydraulic circuit (boom, stick, bucket, and swing), travel circuits, and the hydraulic oil tank at the filler cap before any hydraulic lines or components are disconnected or removed. Remove the filler cap only when the engine is stopped and the filler cap is cool enough to touch.

Note: Put identification marks on all lines, on all hoses, on all wires, and on all tubes for installation purposes. Plug all lines, hoses and tubes. This helps to prevent fluid loss and this helps to keep contaminants from entering the system.

Note: A hydraulic oil sample should be obtained before any maintenance is performed in order to establish the system contaminant level. Refer to Fluid Analysis Laboratory Guide, SEBF3116, "Obtaining an Oil Sample for S·O·S Analysis". Refer to Operation and Maintenance Manual, "Sampling Interval and Location for Sampling" for the correct location.

1. Release the pressure in the hydraulic system. Refer to Disassembly and Assembly, "Hydraulic System Pressure - Release" in this manual.

2. Drain the oil from the hydraulic tank into a suitable container for storage or disposal. The total capacity of the hydraulic oil tank is 140 L (37 US gal).

Show/hide table

At operating temperature, the engine coolant is hot and under pressure. Steam can cause personal injury. Check the coolant level only after the engine has been stopped and the filler cap is cool enough to touch with the bare hand. Remove the filler cap slowly to relieve pressure. Cooling system conditioner contains alkali. Avoid contact with skin and eyes to prevent personal injury.

3. Drain the coolant from the cooling system into a suitable container for storage or disposal. The capacity of the cooling system is 17 L (4.5 US gal).

Show/hide table



Illustration 1	g00657201

4. Remove bolts (1) and the washers. Remove cover (2) .

Show/hide table



Illustration 2	g00728218

5. Remove bolts (4) and the washers. Remove handhold (3) .

Show/hide table



Illustration 3	g00728102

6. Remove bolts (6) and the washers. Remove mirror (5) .

Show/hide table



Illustration 4	g00728252

7. Remove bolts (7) and the washers. Remove cover (8) .

Show/hide table



Illustration 5	g00728248

8. Remove bolts (9) and the washers. Remove access door (10) .

Show/hide table



Illustration 6	g00728299

9. Disconnect electrical connectors (11) from the mode control switch.

Show/hide table



Illustration 7	g00728305

10. Remove bolts (12) and the washers. Reposition bracket (13) and the governor control cable away from the support assembly.

Show/hide table



Illustration 8	g00728308

11. If the machine is equipped auxiliary controls, remove bolts (14) and the washers. Reposition bracket (15) and the ball valves away from the support assembly.

Show/hide table



Illustration 9	g00728514

Show/hide table



Illustration 10	g00728518

12. Remove bolts (17) and the washers. Remove support assembly (16) .

Show/hide table



Illustration 11	g00728521

13. Remove bolts (18) and the washers. Remove cover (19) .

Show/hide table



Illustration 12	g00728522

14. Remove bolts (20) and the washers. Remove cover (21) .

Show/hide table



Illustration 13	g00728526

15. Cut wire tie-wraps (22) in order to disconnect the wire harness from the support assembly.

Show/hide table



Illustration 14	g00728524

16. Remove bolts (24) and the washers. Remove support assembly (23) .

Show/hide table



Illustration 15	g00728531

17. Remove bolts (25) and the washers. Remove drain tube (26) .

Show/hide table



Illustration 16	g00728560

18. Remove bolts (27) and the washers. Remove cover (28) .

Show/hide table



Illustration 17	g00728567

19. Remove bolts (29) and the washers. Remove cover (30) .

Note: Cap all hydraulic lines and cap all hydraulic fittings that are disconnected in order to prevent oil loss. This will also keep contaminants out of the hydraulic system.

Note: Mark all hydraulic lines that are disconnected for installation purposes.

Show/hide table



Illustration 18	g00728571

20. Disconnect pilot hose (31) from the main pump.

21. Disconnect pilot hose (32) from the main pump.

22. Disconnect pilot hose (33) from the main pump.

Show/hide table



Illustration 19	g00728582

23. Disconnect hose (34) from the main pump.

24. Disconnect hose (35) from the main pump.

Show/hide table



Illustration 20	g00728595

25. Disconnect pilot hose (36) from the bottom of the main pump.

Show/hide table



Illustration 21	g00728598

26. Disconnect hose (37) from the main pump.

Show/hide table



Illustration 22	g00728603

Note: The number of hydraulic lines that are connected to the suction line will vary.

27. Disconnect hoses (38) from the suction line.

Show/hide table



Illustration 23	g00728614

28. Loosen hose clamp (41) on the suction line.

29. Remove bolts (39) from suction tube (40) .

30. Turn suction tube (40) in order to make clearance while you remove the engine and main hydraulic pump.

Show/hide table



Illustration 24	g00728685

31. Remove O-ring seal (42) from the suction tube.

Show/hide table



Illustration 25	g00736291

32. Loosen bolts (43) from the cover under the boom.

Show/hide table



Illustration 26	g00736310

33. Remove bolts (45) and the washers. Remove cover (44) .

Show/hide table



Illustration 27	g00736317

34. Remove bolts (47) and the washers. Remove cover (46) .

35. Perform Steps 35.a through 35.j if the machine is equipped with an air conditioner.
    Show/hide table
    
    

    Illustration 28	g00736889

    1. Loosen bolt (49) .

    2. Loosen bolt (48) in order to release the tension on the air conditioner V-belt.

    3. Remove V-belt (50) from the compressor pulley.
    Show/hide table
    
    

    Illustration 29	g00736922

    4. Disconnect electrical connector (51) from the refrigerant compressor.

    5. Cut wire tie-wraps (52) .
    Show/hide table
    
    

    Illustration 30	g00736662

    6. Remove bolt (56) and the clip for the air conditioner lines.

    7. Remove bolts (53) and the washers. Remove bracket (54) .

    8. Remove bolt (55) and the washer from the clip for the air conditioner lines.
    Show/hide table
    
    

    Illustration 31	g00736895

    9. Remove bolt (59), the nut, and the washers. Remove bolts (57) and the washers.

    10. Position refrigerant compressor (58) to the side.

Show/hide table



Illustration 32	g00736389

36. Remove bolts (60) and the washers. Remove upper fan guard (61) .

37. Remove bolts (63) and the washers. Remove lower fan guard (62) .

Show/hide table



Illustration 33	g00736403

38. Loosen hose clamps (64). Remove air hose (65) from the turbocharger.

Show/hide table



Illustration 34	g00737040

39. Loosen hose clamps (66). Remove top radiator hose (67) .

Show/hide table



Illustration 35	g00737061

Note: Mark all electrical connections that are disconnected for installation purposes.

40. Disconnect electrical connectors (71) from the coolant temperature switch. Disconnect electrical connector (69) from the coolant temperature sender.

41. Remove bolt (68) and the washer from the harness clip. Remove bolt (70) and the washer from the harness clip.

Show/hide table



Illustration 36	g00737078

42. Remove nut (72) in order to disconnect the electrical wire from the alternator.

43. Disconnect electrical connector (73) from the alternator.

44. Disconnect electrical connector (74) from the alternator.

45. Remove bolt (75) from the ground wire on the alternator.

Show/hide table



Illustration 37	g00737083

46. Remove bolt (76) in order to disconnect the harness clip.

Show/hide table



Illustration 38	g00737090

47. Disconnect electrical connectors (78) from the oil temperature sensor.

48. Remove bolt (77) and the washer from the harness clip.

Show/hide table



Illustration 39	g00737098

49. Loosen hose clamp (79) in order to disconnect the oil line.

Show/hide table



Illustration 40	g00737163

50. Remove bolt (80) and the washer in order to disconnect the ground wire from the engine mount.

Show/hide table



Illustration 41	g00737167

51. Disconnect oil lines (81) from the engine oil cooler.

52. Remove bolt (82) and the washer in order to disconnect the clip for the oil lines.

Show/hide table



Illustration 42	g00737185

53. Remove nut (83) in order to disconnect the glow plug wire.

Show/hide table



Illustration 43	g00737194

54. Remove bolts (85) and the washers in order to disconnect the governor control bracket.

55. Remove nuts (84) and the washers in order to disconnect the bracket for governor control cable.

Show/hide table



Illustration 44	g00737200

56. Remove bolts (86) and the washers in order to disconnect the bracket for the throttle cable.

Show/hide table



Illustration 45	g00737201

57. Remove bolts (87) and the washers from the clips on throttle cable (88) .

58. Reposition throttle cable (88) and the governor control away from the engine.

Show/hide table



Illustration 46	g00737204

59. Remove bolts (89) and the washers from the harness clips.

Show/hide table



Illustration 47	g00737205

60. Remove the cover in order to remove nut (91). Disconnect the electrical wires from the starter.

61. Remove bolt (90) and the clamp. Remove the battery cable.

62. Remove screws (92) in order to disconnect the wires from the starter.

63. Remove bolts (93) and the washers from the harness clips.

Show/hide table



Illustration 48	g00737213

64. Loosen hose clamps (94) in order to disconnect the heater hoses.

Show/hide table



Illustration 49	g00737214

65. Remove bolt (95) and the washer in order to remove the clip from the heater hoses.

Show/hide table



Illustration 50	g00737215

66. Loosen hose clamps (96) in order to disconnect the fuel lines from the fuel injection pump.

67. Loosen hose clamp (97) in order to disconnect the fuel line from the fuel priming pump.

Show/hide table



Illustration 51	g00737217

68. Loosen hose clamp (98) in order to disconnect the bottom radiator hose.

Show/hide table



Illustration 52	g00737253

69. Place a protective cover between fan (99) and the radiator core. Remove the nuts that secure fan (99) to the engine. Reposition the fan against the radiator core.

Show/hide table



Illustration 53	g00737222

70. Fasten a suitable lifting device and Tooling (A) to the lifting brackets on the engine.

71. Fasten Tooling (B) to the hoist and the lifting bracket on the engine.

Note: Mark the front engine mounts and mark the rear engine mounts for installation purposes.

72. Remove bolts (101) and nut assemblies (103) from the front engine mounts.

73. Remove bolts (102) and nut assemblies (104) from the rear engine mounts.

Note: Be careful to not damage the radiator core or damage the cooling fan while you remove the engine and main hydraulic pump.

Note: The engine and main hydraulic pump must be kept level in order to prevent possible interference between the components. Adjust Tooling (A) and Tooling (B) in order to keep the engine and main hydraulic pump level.

74. Carefully remove engine and main hydraulic pump (100) from the machine. The approximate weight of the engine and main hydraulic pump is 520 kg (1150 lb).

Show/hide table



Illustration 54	g00737228

75. Remove fan (99) .

76. Remove rubber mounts (105) from the front engine supports.

77. Remove rubber mounts (106) from the rear engine supports.