140M and 150 Motor Grader Blade Lift Arm - Install Caterpillar


Blade Lift Arm - Install
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1.1. Installation Procedure

Installation Procedure

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
1P-1837  Bearing Puller Adapter 
6V-3170 Double Acting Cylinder 
4K-0684 Hard Washer 
4C-9634 Puller Stud 
9U-6832 Nut 
350-7768 Electric Hydraulic Pump Gp (115V) 
350-7769 Electric Hydraulic Pump Gp (230V) 
1P-1837  Bearing Puller Adapter 
6V-3170 Double Acting Cylinder 
4K-0684 Hard Washer 
1P-1835 Bearing Puller Adapter 
4C-9634 Puller Stud 
9U-6832 Nut 
350-7768 Electric Hydraulic Pump Gp (115V) 
350-7769 Electric Hydraulic Pump Gp (230V) 
1P-0510  Driver Gp 

------ WARNING! ------

When you are using hydraulic cylinders and puller studs, always ensure that the rated capacity of the puller stud meets or exceeds the rated capacity of the hydraulic cylinder. If the puller stud does not meet or exceed the rated capacity of the hydraulic cylinder, a sudden failure of the puller stud could occur. The sudden failure of the puller stud could result in personal injury or death.




    Illustration 1g01397485


    Illustration 2g01397459

  1. Install Tooling (A) and support Tooling (A) with a suitable lifting device. Use Tooling (A) to install bearings (30).


    Illustration 3g01397451

  2. Use Tooling (C) to install lip seals (29).


    Illustration 4g03643644


    Illustration 5g01397493

  3. Use Tooling (B) to install bearings (28).

  4. Install seals (26), (26A), and washers (25). Use two people to install yoke (27) on blade lift arm (12). The weight of yoke (27) is approximately 23 kg (50 lb).

  5. Install shims (24A) and washers (24). Use shims (24A) to obtain a maximum end play of 0.254 mm (0.0100 inch). Yoke (27) must rotate freely. Install seal (23).

  6. Install retainer (22) and bolts (21). Tighten bolts (21) to a torque of 100 ± 20 N·m (74 ± 15 lb ft).


    Illustration 6g01397310

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

  8. Position four thrust washers (16) (not shown).

    Note: The gap between blade lift arm (12) and the frame should not be over 1.00 mm (0.039 inch).

  9. Install pin (19).

  10. Install lock (18) and bolts (17).

  11. Install bolt (20). Tighten bolt (20) to a torque of 115 ± 10 N·m (85 ± 7 lb ft).


    Illustration 7g01397275

  12. Install pin (14) into blade lift arm (12).

  13. Install lock (15) and bolts (13).

    Note: Use thrust washers (16) (not shown) to obtain a clearance of 3.70 mm (0.150 inch) between the centershift lock bar and the plate.



    Illustration 8g01397260

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

  15. Use the machine to position centershift cylinder (8).

  16. Install cap (10) and bolts (9).


    Illustration 9g01397240

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

  18. Use the suitable lifting device to position blade lift cylinder (4) onto front frame assembly (6).

  19. Install caps (7) and bolts (5).

  20. Install plate (3).


    Illustration 10g01413572

  21. Position cover (1) onto the machine.

  22. Install bolts (2). Repeat for the opposite side of the machine.

End By:

  1. Install the blade accumulator (Blade Cushion).

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