3524B Engine for Caterpillar Built Machines Caterpillar

Connect

Note: Prior to connecting the engines, ensure that both engines are in the top center position for the No. 1 piston and ensure that the crankshafts are separated by 360 degrees. Refer to Testing and Adjusting, "Finding the Top Center Position for the No. 1 Piston".

Note: Prior to connecting the engines, ensure that the engines are properly aligned with the coupling. Refer to Specifications, "Engine Coupling".

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Illustration 1	g00909769

1. Attach a suitable lifting device to the engine and position the rear engine to the front engine. The weight of the rear engine is approximately 7440 kg (16400 lb).
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   Illustration 2	g00909771

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   Illustration 3	g00909772

2. Install O-ring seal (50) and lubricate O-ring seal (50) with engine oil.

3. Install bolts (47) in order to connect the rear engine to the front engine. Make sure that the dowel pins are aligned properly.
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   Illustration 4	g00909774

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   Illustration 5	g00909775

4. Slide coupling (45) toward the front engine and install bolts (46).

5. Remove bolts (42) from both the flywheels and use Tooling (A) in order to rotate the engine for access to remaining bolts (46).

   Note: Apply lubricant to Tooling (A) in order to prevent damage to the flywheel housing.

   Tighten bolts (46) to a torque of 270 ± 40 N·m (200 ± 30 lb ft).

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   Illustration 6	g00909776

6. Install bolts (42) in order to attach covers (43) and the gaskets to both engines. Install plugs (44) to both engines.
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   Illustration 7	g00909777

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   Illustration 8	g00909778

7. Install bolts (48). Use Tooling (B) to tighten bolts (48) to a torque of 1125 ± 100 N·m (830 ± 74 lb ft).
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   Illustration 9	g00909779
   This view is of the left side of the rear engine.

8. Install bolts (39) in order to attach block (40), adapter (41), and the O-ring seals.
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   Illustration 10	g00909781

9. Install covers (38) and the gaskets.
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   Illustration 11	g00909782
   This view is of the bottom side of the engine.

10. Install cover (37), the two screens, and the two gaskets.

11. Connect tube assembly (36).
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    Illustration 12	g00909783
    This view is of the left side of the engine.

12. Install block (35) and the gasket.

13. Connect tube assembly (34).

14. Install tube assembly (33).

15. Install cover (32) and the gasket.
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    Illustration 13	g00909784
    This view is of the right side of the engine.

16. Attach cover assembly (31) and the gasket. Install clamp (30).
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    Illustration 14	g00909785

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    Illustration 15	g01189004

17. Attach a suitable lifting to plate (27) and position plate (27) to the engine. The weight of plate (27) is approximately 100 kg (220 lb). Install bolts (28) in order to secure plate (27) and harness assembly (29). Tighten bolts (28) in a numerical sequence to a torque of 120 N·m (89 lb ft).
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    Illustration 16	g00909787

18. Install tube assemblies (26).

19. Install cable straps (24) in order to secure harness assembly (25).
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    Illustration 17	g00909788
    This view is of the left side of the engine.

20. Install bolts (23).
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    Illustration 18	g00909789
    This view is of the left side of the front engine.

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    Illustration 19	g00909790
    This view is of the left side of the rear engine.

21. Install bolts (20) in order to install brackets (21), tube assembly (22), and the gaskets.

22. Connect hose assemblies (19).

23. Install tube assembly (18).
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    Illustration 20	g00909791
    This view is of the right side of the front engine.

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    Illustration 21	g00909792
    This view is of the right side of the rear engine.

24. Install bolts (15) in order to attach brackets (17), tube assembly (16), and the gaskets.

25. Connect hose assembly (14).
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    Illustration 22	g00909794
    This view is of the left side of the engine.

26. Install tube assemblies (13).
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    Illustration 23	g00909795
    This view is of the right side of the engine.

27. Install tube assembly (12).
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    Illustration 24	g00909796
    This view is of the right side of the engine.

28. Install tube assemblies (11).
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    Illustration 25	g00909797

29. Install tube assemblies (10).
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    Illustration 26	g00909798
    This view is of the right side of the engine.

30. Install tube assembly (9).
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    Illustration 27	g00909799
    This view is of the left side of the rear engine.

31. Install tube assembly (8).
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    Illustration 28	g00909800

32. Connect hose assembly (7).

33. Install tube assembly (6).
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    Illustration 29	g00909801

34. Attach bracket (5).
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    Illustration 30	g00909802

35. Connect harness assemblies (4).

36. Install cable straps (3).
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    Illustration 31	g00909803

37. Install bolts (1) in order to attach cover (2).

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