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


Wheel Spindles And Wheel Spindle Housings

Usage:

Remove Wheel Spindles And Wheel Spindle Housing

Start By:

a. remove front wheels

1. Install the lock pin in the wheel lean bar and the front axle. Remove the nut, washer and bolt (1) that hold the lock in position. Remove the lock.

2. Remove bolt (3), the washer and the retainer. Remove the pin from the wheel lean cylinder. Do not remove the pin from the wheel lean arm. Start the engine. Move the cylinder rod (2) into the wheel lean cylinder. Shut off the engine.

3. Remove the cotter pin from the steering tie rod pin. Loosen nut (7) until it is even with the end of the steering tie rod pin. Hit the nut with a hammer to loosen the pin from its taper. Remove nut (7). Move the steering tie rod (6) away from the wheel spindle housing (5).

4. Repeat Step 3 for steering cylinder (8).

5. Remove bolt and washer (4) and (10).


Typical Example

6. Fasten a hoist to the wheel spindle housing (5). Remove two pins (9) from the wheel spindle housing (5) and the wheel lean arm with tooling (A). Remove the rings from pins (9).

7. Remove wheel spindle and wheel spindle housing (5). Weight is 48 Kg (106 lbs). Remove thrust washers (12) and (14) from the wheel lean arm (11). Remove the O-ring seals (17) and seals (15) from the wheel spindle housing (5). Remove seal (18) from wheel lean arm (11).

8. Remove the bearings (13) from the wheel lean arm (11).

9. Repeat Steps 1 through 8 for the other wheel spindle and wheel spindle housing.

Install Wheel Spindles And Wheel Spindle Housings


Typical Example

1. Install the bearings in wheel lean arm (11) with tooling (B). Install the bearings even with the surface that is toward the center of the wheel lean arm.


NOTICE

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



Typical Example

2. Install new O-ring seals (17) and new seals (15) and (18) in the top and bottom of wheel spindle housing (5). Fasten a hoist to housing (5). Put it in position on the wheel lean arm. Install thrust washers (12) and (14) between wheel spindle housing (5) and wheel lean arm (11) at the upper junction. Install ring (16) on pin (9).


Typical Example

3. Lower the temperature of the two pins (9) that hold the wheel spindle housing to the wheel lean arm (11). Install pins (9) with tooling (C).


Typical Example

4. Install bolts and washers (4) and (10) in pins (9) that hold pins (9) in wheel spindle housing (5).

5. Start the engine. Move the wheel lean cylinder rod (2) into position over the pin that holds the cylinder rod to wheel lean arm (11) and the wheel lean bar. Install the pin in the cylinder rod. Install the bolt, washer (3) and the retainer on the end of the pin.

6. Install the lock (19), nut, washer and bolt (1). Tighten the bolt to a torque of 250 ± 14 N·m (185 ± 10 lb.ft.). Remove the lockpin from the wheel lean bar and the front axle.

7. Put steering tie rod (6) in position in the wheel spindle housing (5). Install nut (7) on the pin. Tighten the nut to a torque of 120 N·m (90 lbs.). Always tighten the nut to put the groove (slot) in alignment with the hole in the pin. Install the cotter pin.

8. Put the steering cylinder (8) in position in wheel spindle housing (5). Install the nut on the pin. Tighten the nut to a torque of 135 N·m (100 lbs. ft.). Always tighten the nut to put the groove (slot) in alignment with the hole in the pin. Install the cotter pin.

9. Repeat Steps 1 through 8 for the other wheel spindle and wheel spindle housing.

End By:

a. install front wheels

Caterpillar Information System:

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 Articulation Lock Check Valve
12G, 120G, 130G & 140G MOTOR GRADER VEHICLE SYSTEMS Circle Drive And Blade Sideshift Lock Check Valves
12G, 120G, 130G & 140G MOTOR GRADER VEHICLE SYSTEMS Blade Tip Lock Check Valve
12G, 120G, 130G & 140G MOTOR GRADER VEHICLE SYSTEMS Blade Lift Lock Check And Relief Valve
12G, 120G, 130G & 140G MOTOR GRADER VEHICLE SYSTEMS Wheel Lean Arms
12G, 120G, 130G & 140G MOTOR GRADER VEHICLE SYSTEMS Wheel Lean Bar
12G, 120G, 130G & 140G MOTOR GRADER VEHICLE SYSTEMS Wheel Lean Cylinder
12G, 120G, 130G & 140G MOTOR GRADER VEHICLE SYSTEMS Front Axle
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
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