CONTROL GP-JOYSTICK 3769483 - Caterpillar

Illustration 1 g00852920
(1) Spindle
(2) Shims
(3) Retainer plate
(4) Bolts
Illustration 2 g00104540
Typical example
Location of the purge valve for the parking brakes
Note: Before performing this adjustment, you will need to release the brakes. In order to release the parking brake, remove the purge valve from opening (A). This opening is marked with a "P". Then, connect a manual hydraulic pump or an electric hydraulic pump to opening (A). Continue to operate the pump until the brake is fully released. To learn more about releasing the brakes, refer to the information about towing that is located in the Air System and Brakes Systems Operation and Testing And Adjusting.
If it becomes necessary to use an outside hydraulic source to release the parking brake, do not exceed the relief pressure of the parking and secondary brake control valve. Exceeding the relief pressure can damage seals and other parts in the circuit.
Adjustment Procedure
Thoroughly, clean all of the tapped holes in the end of spindle (1).
Illustration 3 g00836690
View A-A
(3) Retainer plate
(4) Bolts
Install retainer plate (3) with four new bolts (4) to spindle (1). Install bolts (4) so that each bolt is equally spaced around retainer plate (3). Note: Do not use any shims (2) at this time.
Tighten bolts (4) to a torque of 140 N m (103 lb ft). Turn the wheel for two complete revolutions.
Tighten bolts (4) to 140 N m (103 lb ft). Turn the wheel for two complete revolutions.
Loosen bolts (4) by 120 degrees. Turn the wheel for two complete revolutions.
Tighten bolts (4) to a torque of 70 5 N m (52 4 lb ft). Turn the wheel for two complete revolutions.
Tighten bolts (4) to a torque of 70 5 N m (52 4 lb ft). Turn the wheel for two complete revolutions.
Tighten bolts (4) to a torque of 70 5 N m (52 4 lb ft).
Use a depth micrometer to determine the distance from the outside face of retainer plate (3) to the end of spindle (1). Measure the depth of the two holes that are opposite to each other on retainer plate (3). Calculate an average depth from these two measurements.
Use an outside micrometer to determine the thickness of retainer plate (3) at the bolt holes. Measure the thickness of retainer plate (3) at the same locations that were used in Step 9. Calculate an average thickness from these two measurements.
Find the gap between the end of spindle (1) and the inside face of retainer plate (3). To find this gap, subtract the dimension that was found in Step 10 from the dimension that was found in Step 9.
Calculate the shim pack thickness. Add 0.230 + 0.000 − 0.050 mm (0.009 + 0.000 − 0.002 inch) to the distance that was found in Step 11.
Assemble shim pack (2) so that the shim pack thickness is the value that was found in Step 12. Remove bolts (4) and retainer plate (3).
Install shim pack (2).
Install retainer plate (3) over shim pack (2). Install ten new bolts (4). Note: Apply