920 & 930 WHEEL LOADER VEHICLE SYSTEMS Caterpillar


Bucket Positioner Master Cylinder

Usage:

Remove Bucket Positioner Master Cylinder

1. Disconnect line (2) from master cylinder (1).

2. Remove the two bolts and remove master cylinder (1) from the tilt cylinder.

Install Bucket Positioner Master Cylinder

1. Put master cylinder (1) in position on the tilt cylinder and install the two bolts to hold it.

2. Connect the oil line to master cylinder (1).

3. Start the engine and lift the bucket until the tilt cylinder is level. Stop the engine and put tooling (A) under the lift arm for support. Move the control lever to lower the weight of the lift arms and bucket on tooling (A).

4. Fill the master cylinder with brake fluid. Make sure the cap is installed on the master cylinder.

5. Fasten a hose to the bleed valve on the slave cylinder (found under the operator's seat). Put the loose end of the hose in a reservoir (container) of brake fluid until it is below the surface of the fluid.

6. Hold the tilt control lever in the "TILT BACK" position so the slave cylinder push rod does not move.

7. Activate the master cylinder several times and hold the rod and piston all of the way in the master cylinder bore.

8. Open the bleed valve (2) on the slave cylinder. Close the bleed valve when the pressure is not high enough to push brake fluid out.

9. Do Steps 1 through 5 until there are no air bubbles in the brake fluid that comes out of the bleed valve. Fill the master cylinder with brake fluid.

10. Remove tooling (A) from under the lift arms and lower the bucket to the ground.

11. Make an adjustment of the bucket positioner. See BUCKET POSITIONER in TESTING AND ADJUSTING.

Caterpillar Information System:

920 & 930 WHEEL LOADER VEHICLE SYSTEMS Bucket Positioner
920 & 930 WHEEL LOADER VEHICLE SYSTEMS Bucket
920 & 930 WHEEL LOADER VEHICLE SYSTEMS Steering Cylinders
920 & 930 WHEEL LOADER VEHICLE SYSTEMS Steering Control Valve
920 & 930 WHEEL LOADER VEHICLE SYSTEMS Steering Metering Unit
920 & 930 WHEEL LOADER VEHICLE SYSTEMS Steering Column
920 & 930 WHEEL LOADER VEHICLE SYSTEMS Steering Wheel
920 & 930 WHEEL LOADER VEHICLE SYSTEMS Emergency And Parking Brake
920 & 930 WHEEL LOADER VEHICLE SYSTEMS Emergency And Parking Brake Chamber
920 & 930 WHEEL LOADER VEHICLE SYSTEMS Air Tank
920 & 930 WHEEL LOADER VEHICLE SYSTEMS Emergency And Parking Brake Control Valve
920 & 930 WHEEL LOADER VEHICLE SYSTEMS Wheel Brake Discs
920 & 930 WHEEL LOADER VEHICLE SYSTEMS Lift Kickout Master Cylinder
920 & 930 WHEEL LOADER VEHICLE SYSTEMS Bucket Positioner Or Lift Kickout Master Cylinder
920 & 930 WHEEL LOADER VEHICLE SYSTEMS Bucket Positioner And Lift Kickout Slave Cylinders
920 & 930 WHEEL LOADER VEHICLE SYSTEMS Bucket Positioner Or Lift Kickout Slave Cylinder
920 & 930 WHEEL LOADER VEHICLE SYSTEMS Lift Cylinders
920 & 930 WHEEL LOADER VEHICLE SYSTEMS Tilt Cylinders
920 & 930 WHEEL LOADER VEHICLE SYSTEMS Lift Arms
920 & 930 WHEEL LOADER VEHICLE SYSTEMS Hydraulic Control Valve
920 & 930 WHEEL LOADER VEHICLE SYSTEMS Make-Up Valve
920 & 930 WHEEL LOADER VEHICLE SYSTEMS Lift And Tilt Control Lever Housings
920 & 930 WHEEL LOADER VEHICLE SYSTEMS Hydraulic Tank
920 & 930 WHEEL LOADER VEHICLE SYSTEMS Hydraulic Pump
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