ADAPTER 5315897 - Caterpillar

Personal injury or death can result from a brake malfunction. Do not operate the machine if the brake was applied due to a malfunction of the brake system.Correct any problem before attempting to operate the machine.
There are two drive motors on the machine, one on each drum. Each drive motor includes a parking brake that is spring activated and hydraulically released.
To avoid damaging the internal mechanism, do not use power tools to release or reactivate the brakes.
Perform the following procedure on both drums to release the brakes manually:
Illustration 1 g01351219
To prevent the machine from moving, block the drums securely.
Illustration 2 g01351074
To hold the front frame and the rear frame rigid, install the steering frame lock into the LOCKED position.Note: Refer to the Operation and Maintenance Manual, "Steering Frame Lock" for further information.
Illustration 3 g02871417
To access the release screws (2), use an 8mm allen wrench to remove plugs (1). There are two release screws on each drum.
Using a 6mm allen wrench, press and turn in each release screw until the threads catch in brake plate (4). Tighten each release screw alternately until spring (3) on each is fully compressed. You will feel a substantial difference in the amount of torque required to turn the screw once the spring is fully compressed.
Continue to tighten the two release screws to compress the brake plate springs. Alternate between the two screws, turning each approximately 45 degrees at a time, until the drums are no longer held by the brake plate. The brake plate should release after turning each screw approximately two turns.Note: The maximum torque for the release screws is 33 N m (24.3 lb ft). Overtightening the release screws can destroy the internal mechanism.
Manually turn the drum to test if the brake is released.
Replace the plugs. Tighten the plugs to a maximum torque of 60 6 N m (44.2 4.4 lb ft).To reactivate the brakes, perform the following procedure on both drums:
To access the release screws (2), use an 8mm allen wrench to remove plugs (1). There are two release screws on each drum.
Alternating between the two release screws (2), loosen the screws until the brake plate is disengaged.
Replace the plugs. Tighten the plugs to a maximum torque of 60 6 N m (44.2 4.4 lb ft).