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


Blade Lift Arm - Remove
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1.1. Removal Procedure

Removal Procedure

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

Start By:

  1. Remove the blade accumulators.
  2. Connect the steering frame lock.

------ 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 1g01413572

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

  1. Remove cover (1) from the machine.



    Illustration 2g01397240

  1. Remove plate (3) .

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

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

  1. 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

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

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

  1. 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

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

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

  1. Remove pin (14) .



    Illustration 5g01397310

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

  1. Remove bolt (20) and the plate.

  1. Remove pin (19) .

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

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



    Illustration 6g03643644

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

  1. Remove seals (23) , (23A) , shims (24) , and shims (24A) .

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

  1. 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).

  1. Remove washers (25) and seals (26) , and (26A) .

  1. Remove bearings (28) .



    Illustration 7g01397451

  1. Remove lip seals (29) .

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




    Illustration 8g01397453



    Illustration 9g01397459

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

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