120M and 12M Motor Grader Machine Systems Blade Lift Arm - Remove Caterpillar


Blade Lift Arm - Remove
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120M and 12M Motor Grader Machine Systems [KENR6418]
WORK TOOLS
BLADE GP
1.1. Removal Procedure

Removal Procedure

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
1P-1834  Bearing Puller Adapter 
6V-3170 Double Acting Cylinder 
4K-0684 Hard Washer 
4C-9634 Puller Stud 
9U-6832 Nut 
3S-6224 Electric Hydraulic Pump Gp 

Start By:

  1. Connect the steering frame lock. Refer to Disassembly and Assembly, "Steering Frame Lock - Separate and Connect".


    Illustration 1g01415674

  1. Remove bolts (2). Repeat for the opposite side of the machine.

  2. Remove cover (1) from the machine.


    Illustration 2g01397240

  3. Remove plate (3).

  4. Attach a suitable lifting device to blade lift cylinder (4). The weight of blade lift cylinder (4) is approximately 91 kg (200 lb).

  5. Remove bolts (5) and caps (7).

  6. Use the suitable lifting device in order to position blade lift cylinder (4) on front frame assembly (6). Secure blade lift cylinder (4) to the front frame assembly (6).


    Illustration 3g01397260

  7. Attach a suitable lifting device to centershift cylinder (8).

  8. Remove bolts (9) and cap (10).

  9. Use the machine to retract centershift cylinder (8). Use the suitable lifting device in order to lower centershift cylinder (8) to the drawbar (11).


    Illustration 4g01397275

  10. Attach a suitable lifting device to blade lift arm (12). The weight of blade lift arm (12) is approximately 113 kg (250 lb).

  11. Remove bolts (13) and lock (15).

  12. Remove pin (14).


    Illustration 5g01397310

  13. Remove bolts (17) and lock (18).

  14. Remove bolt (20) and the plate.

  15. Remove pin (19).

  16. Remove four thrust washers (16) (not shown).

  17. Use the suitable lifting device in order to remove blade lift arm (12).


    Illustration 6g01397448

  18. Remove bolts (21) and retainer (22).

  19. Remove seal (23) and shims (24).

  20. Partially remove yoke (27) from blade lift arm (12).

  21. Use two people in order to remove yoke (27) from blade lift arm (12). The weight of yoke (27) is approximately 23 kg (50 lb).

  22. Remove washers (25) and seals (26).

  23. Remove bearings (28).


    Illustration 7g01397451

  24. Remove lip seals (29).

    Note: Note the orientation of lip seals (29) for assembly purposes.



    Illustration 8g01397453


    Illustration 9g01397459

  25. Install Tooling (A) and support Tooling (A) with a suitable lifting device. Remove bearings (30).

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