12G, 120G, 130G & 140G MOTOR GRADER VEHICLE SYSTEMS Caterpillar


Front Axle

Usage:

Remove And Install Front Axle

Start By:

a. remove wheel lean bar

b. remove steering tie rod

c. remove front wheels


Typical Example

1. Lift the front of the machine off the ground. Install tooling (A) under the circle drawbar.

2. Disconnect oil lines (1) from the steering cylinders. Disconnect oil lines (2) from the wheel lean cylinder.

3. Remove the bolts and nuts (3) and (4) that hold the pins to the front axle and the frame.

4. Fasten a hoist to the front axle.

5. Remove pins (5) and (7) from the front axle and the frame. Remove the washers.

6. Remove front axle (6). Weight is 200 Kg (440 lbs.).

7. Remove seals (8) and the bearings from the front axle with tooling (B).

NOTE: The following steps are for installation of the front axle.

8. Install four new bearings (9) in the front axle with tooling (C). Install the bearings 7.16 ± 0.4 mm (.282 ± .016 in.) from each surface of the axle.


NOTICE

Tooling (C) must be used when the bearings are installed to prevent damage.


9. Install four new seals (8) in the front axle with tooling (B). Install the seals with the lip toward the outside surface, and even with the outside surface of the front axle.

10. Fasten a hoist to the front axle. Put front axle (6) in position on the frame.

11. Install the front pin (7) and washer (10). Install the rear pin (5) and washer (11). Make sure the holes in the pins are in alignment with the holes in the frame.

NOTE: Use washers (10) to maintain 1.5 mm (.060 in.) gap between the front axle and the front frame.

12. Install the bolts and nuts (3) and (4) that hold the pins (5) and (7) to the frame and front axle (6).

13. Connect oil lines (1) to the steering cylinders. Connect oil lines (2) to the wheel lean cylinder.

End By:

a. install front wheels

b. install steering tie rod

c. install wheel lean bar

Caterpillar Information System:

12G, 120G, 130G & 140G MOTOR GRADER VEHICLE SYSTEMS Wheel Lean Cylinder
12G, 120G, 130G & 140G MOTOR GRADER VEHICLE SYSTEMS Wheel Lean Bar
12G, 120G, 130G & 140G MOTOR GRADER VEHICLE SYSTEMS Wheel Lean Arms
12G, 120G, 130G & 140G MOTOR GRADER VEHICLE SYSTEMS Wheel Spindles And Wheel Spindle Housings
12G, 120G, 130G & 140G MOTOR GRADER VEHICLE SYSTEMS Wheel Spindles
12G, 120G, 130G & 140G MOTOR GRADER VEHICLE SYSTEMS Front Wheels
12G, 120G, 130G & 140G MOTOR GRADER VEHICLE SYSTEMS Steering Tie Rod
12G, 120G, 130G & 140G MOTOR GRADER VEHICLE SYSTEMS Steering Cylinders
12G, 120G, 130G & 140G MOTOR GRADER VEHICLE SYSTEMS Steering Pump
12G, 120G, 130G & 140G MOTOR GRADER VEHICLE SYSTEMS Steering Accumulator
12G, 120G, 130G & 140G MOTOR GRADER VEHICLE SYSTEMS Steering Relief Valve
12G, 120G, 130G & 140G MOTOR GRADER VEHICLE SYSTEMS Blade Lift Lock Check Valve
12G, 120G, 130G & 140G MOTOR GRADER VEHICLE SYSTEMS Blade Lift Cylinders
12G, 120G, 130G & 140G MOTOR GRADER VEHICLE SYSTEMS Ball And Socket Joint Inserts
12G, 120G, 130G & 140G MOTOR GRADER VEHICLE SYSTEMS Blade Lift Arms
12G, 120G, 130G & 140G MOTOR GRADER VEHICLE SYSTEMS Centershift Lock
12G, 120G, 130G & 140G MOTOR GRADER VEHICLE SYSTEMS Centershift Lock Control Valve
12G, 120G, 130G & 140G MOTOR GRADER VEHICLE SYSTEMS Blade Lift Bar
12G, 120G, 130G & 140G MOTOR GRADER VEHICLE SYSTEMS Centershift Lockplate Bushings
12G, 120G, 130G & 140G MOTOR GRADER VEHICLE SYSTEMS Blade Sideshift Cylinder
12G, 120G, 130G & 140G MOTOR GRADER VEHICLE SYSTEMS Blade Centershift Cylinder
12G, 120G, 130G & 140G MOTOR GRADER VEHICLE SYSTEMS Blade Tip Cylinder
12G, 120G, 130G & 140G MOTOR GRADER VEHICLE SYSTEMS Swivel Joint
12G, 120G, 130G & 140G MOTOR GRADER VEHICLE SYSTEMS Circle Drawbar
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