336E Excavator and 336E MHPU Mobile Hydraulic Power Unit Machine Systems Hydraulic Tank - Assemble Caterpillar

Assembly Procedure

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Illustration 1	g02156451

1. Install O-ring seal (60), pipe assembly (61), and bolts (62).

2. Install the O-ring seal, drain assembly (58), and bolts (59).

3. Install oil level sensor (57). Tighten oil level sensor (57) to a torque of 120 ± 27 N·m (89 ± 20 lb ft).
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   Illustration 2	g02156935

4. Install O-ring seals (55) and (56).
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   Illustration 3	g02156934

5. Install plate (52), shim (53), and bolt (54). Tighten bolt (54) to a torque of 4 N·m (35 lb in).
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   Illustration 4	g02156932

6. Install O-ring seals (49) and (50). Install pipes (48) and (51).
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   Illustration 5	g02156931

7. Apply Tooling (A) to the threads of bolts (45) and (46). Install block group (47), bolts (46), and bolts (45). Tighten bolts (46) to a torque of 15 ± 3 N·m (133 ± 27 lb in). Tighten bolts (45) to a torque of 6 ± 1 N·m (53 ± 9 lb in).
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   Illustration 6	g02156929

8. Install valve assembly (43). Tighten valve assembly (43) to a torque of 5 ± 2 N·m (44 ± 18 lb in).

9. Apply Tooling (A) to the threads of setscrew (44). Install setscrew (44). Tighten setscrew (44) to a torque of 2 N·m (18 lb in).
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   Illustration 7	g02156927

10. Apply Tooling (A) to the threads of bolt (41). Install valve group (42) and bolt (41). Tighten bolt (41) to a torque of 6 ± 1 N·m (53 ± 9 lb in). Install O-ring seal (40).
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    Illustration 8	g02156926

11. Install flange assembly (38) and screws (39).
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    Illustration 9	g02156923

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    Illustration 10	g02156916

12. Install O-ring seal (37) onto base (35).

13. Install O-ring seals (34) onto plate (36).

14. Install base (35), plate (36), and bolts (33). Tighten bolts (33) to a torque of 4 ± 1 N·m (35 ± 9 lb in).
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    Illustration 11	g02156913

15. Install O-ring seals (32) onto plate (29).

16. Install plate (29), the shim, and bolt (31). Tighten bolt (31) to a torque of 4 N·m (35 lb in).

17. Install pads (30) and screws (28). Tighten screws (28) to a torque of 0.4 N·m (4 lb in).
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    Illustration 12	g02156911

18. Install O-ring seal (25) onto handle (26).

19. Install element (24), handle (26), and retaining ring (27).
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    Illustration 13	g02156450

20. Install the O-ring seal, housing assembly (23), and bolts (22). Tighten bolts (22) to a torque of 50 ± 10 N·m (37 ± 7 lb ft).

21. Install filter assembly (21).
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    Illustration 14	g02156001

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    Illustration 15	g02157148

22. Install nut (19), guide (20), nut (17), and screen (16) onto rod (18). Assemble the screen assembly to Dimension (X). Dimension (X) is 790.00 ± 2.00 mm (31.102 ± 0.079 inch). Tighten nut (19) to a torque of 29 ± 5 N·m (21 ± 4 lb ft). Tighten nut (17) to a torque of 18 ± 2 N·m (159 ± 18 lb in).

23. Install O-ring seal (15) in screen (16).
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    Illustration 16	g02156000

24. Install cover assembly (14) and bolts (13).

25. Install cover (12) and bolts (11). Tighten bolts (12) to a torque of 30 ± 5 N·m (22 ± 4 lb ft).

26. Install screen assembly (10) and spring (9).
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    Illustration 17	g02155999

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    Improper assembly of parts that are spring loaded can cause bodily injury. To prevent possible injury, follow the established assembly procedure and wear protective equipment.

27. Install cap assembly (8).

28. Install cover (7) and bolts (6).
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    Illustration 18	g02155998

29. Install switch assembly (4). Tighten switch assembly (4) to a torque of 14 ± 1 N·m (124 ± 9 lb in).

30. Install O-ring seal (5) and pipe (3) into flange assembly (2).
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    Illustration 19	g02155997

31. Install pipe (3), flange assembly (2), and bolts (1). Tighten bolts (1) to a torque of 50 ± 10 N·m (37 ± 7 lb ft).

End By:

1. Install the hydraulic tank.