345C MHPU Mobile Hydraulic Power Unit Engine Supplement Caterpillar

Installation Procedure

1. Remove the engine oil pan prior to installation of the engine into the chassis. This is necessary in order to allow clearance for installation of the engine.

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Illustration 1	g01187162

2. Attach a suitable lifting device to engine (58). The weight of engine (58) is approximately 1270 kg (2800 lb). Install engine (58) into position.

3. Connect the engine to the main pump coupling.

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Illustration 2	g01187069

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Illustration 3	g01187117

4. Use Tooling (C) and suitable cribbing in order to support main hydraulic pump (56). The weight of main hydraulic pump (56) is approximately 318 kg (700 lb). Install bolts (57) .

5. Remove Tooling (C) and suitable cribbing.

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Illustration 4	g01187177

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Illustration 5	g01187171

6. Install support (60). Install bolts (59) and (61). Tighten bolts (59) and (61 ) to a torque of 900 ± 100 N·m (664 ± 74 lb ft).

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Illustration 6	g01187057

7. Connect brackets (55) .

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Illustration 7	g01187050

8. Connect cable assemblies (53). Tighten cable assemblies to a torque of 31 ± 4 N·m (22 ± 3 lb ft). Connect clamp (54) .

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Illustration 8	g01187010

9. Connect harness assembly (50) onto bracket (51). Connect ground strap (52) .

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Illustration 9	g01187004

10. Connect harness assemblies (47). Connect clip (48). Connect harness assemblies (49) .

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Illustration 10	g01186969

11. Connect hoses (46). Move valves (45) to the ON position.

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Illustration 11	g01186964

12. Connect hose assemblies (44) .

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Illustration 12	g01186961

13. Connect hose assembly (43) .

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Illustration 13	g01186955

14. Install cover (42) .

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Illustration 14	g01186924

15. Connect oil filter and base (40). Connect bracket (41) .

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Illustration 15	g01186905

16. Connect hose assembly (39) .

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Illustration 16	g01186873

17. Connect hose assemblies (38) .

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Illustration 17	g01186776

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Illustration 18	g01186775

18. Position cover (36). Install bolts (34) and (37). Connect harness assembly (35) onto cover (36) .

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Illustration 19	g01186771

19. Install guards (33) .

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Illustration 20	g01186736

20. Attach Tooling (B) and a suitable lifting device to support (32). The weight of support (32) is approximately 43 kg (95 lb). Install support (32) .

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Illustration 21	g01186731

21. Install covers (31) as a unit.

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Illustration 22	g01186723

22. Install bracket (29) and cover (30) .

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Illustration 23	g01186671

23. Install support (28) .

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Illustration 24	g01186645

24. Install hose (27) .

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Illustration 25	g01186600

25. Connect ether starting aid tube (26) .

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Illustration 26	g01186592

26. Connect hose assemblies (25) .

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Illustration 27	g01186565

27. Position hose (23). Connect hose (23). Connect clip (24) .

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Illustration 28	g01186506

28. Connect harness assembly (20). Connect cable assemblies (19), and (21). Tighten cable assembly (19) to a torque of 18 ± 2 N·m (13 ± 2 lb ft). Tighten harness assembly (20) to a torque of 4 ± 1 N·m (35 lb in). Connect clips (22) .

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Illustration 29	g01218290

29. Connect harness assembly (16A). Position refrigerant compressor (16). Install bolts (17). Move the belt tensioner counterclockwise in order to install belt (18). Install belt (18) .

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Illustration 30	g01186325

30. Connect hose assembly (15) .

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Illustration 31	g01186306

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Illustration 32	g01186319

31. Position cover (11). Position support (13). Install bolts (14). Lower cover (11). Install bolts (12) .

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Illustration 33	g01186296

32. Install brace (10) .

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Illustration 34	g01186277

33. Install guard (9) .

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Illustration 35	g01186260

34. Install cover (7). Tighten bracket (8). Connect tube (6) and connect to cover (7).

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Illustration 36	g01186229

35. Install cover (4). Install tubes (5). Position hose (3). Connect hose (3) .

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Illustration 37	g01186224

36. Attach Tooling (A) and a suitable lifting device to support (1). The weight of support (1) is approximately 34 kg (75 lb). Install support (1). Install bracket (2) .

37. Move the fuel shutoff to the ON position. Refer to Operation and Maintenance Manual, " Fuel Tank Shutoff and Drain Control".

38. Fill the cooling system with coolant. Refer to Operation and Maintenance Manual, " Cooling System Cooling (ELC) - Change".

End By:

1. Install the oil Pan. Refer to Disassembly and Assembly, "Oil Pan - Install ".
2. Install the muffler. Refer to Disassembly and Assembly, "Muffler - Install".
3. Install the hood. Refer to Disassembly and Assembly, "Hood - Install".