120H and 135H Motor Graders Machine Systems Caterpillar

Installation Procedure

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Illustration 1	g01012338

1. Use two people and install pump assembly (19). The weight of pump assembly (19) is approximately 30 kg (65 lb).

2. Install bolts (20). Tighten bolts (20) to a torque of 100 ± 20 N·m (74 ± 15 lb ft). Slide pump assembly (19) to the front of the machine.

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Illustration 2	g01012334

3. Install bolts (18). Tighten bolts (18) to a torque of 105 ± 20 N·m (77 ± 15 lb ft). Repeat this step for the opposite side of the machine.

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Illustration 3	g01012300

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Illustration 4	g01012304

4. Position elbow (17) to the original location. Install bolts (16). Tighten bolts (16) to a torque of 100 ± 20 N·m (74 ± 15 lb ft).

5. Connect hose assembly (15) .

6. Connect hose assembly (14) .

7. Connect hose assembly (13) .

8. Connect hose assembly (12) .

9. Connect hose (11) .

10. Tighten clamp (10) .

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Illustration 5	g01012298

11. Install air dryer (7). Connect fitting (6) and (8). Install bolt (9) .

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Illustration 6	g01015747

12. Connect harness assembly (5) .

13. Install tube assembly (4) .

14. Connect hose assembly (3) .

15. Connect hose assembly (2) .

16. Connect hose assembly (1) .

17. Fill the hydraulic tank. Refer to Operation and Maintenance Manual, "Hydraulic System Oil - Change" for the correct procedure.

End By:

1. Install the drive shaft. Refer to Disassembly and Assembly, "Drive Shaft - Remove and Install".
2. Install the combination valve. Refer to Disassembly and Assembly, "Combination Valve - Install".