631E Series II Wheel Tractor-Scrapers Parking Brake Manual Release Caterpillar

Parking Brake Manual Release

631E Series II Wheel Tractor-Scrapers [SEBU6905]

631E Series II Wheel Tractor-Scrapers Towing the Machine

631E Series II Wheel Tractor-Scrapers Lubricant Information

BRAKING SYSTEM

631E Series II Wheel Tractor-Scrapers Parking Brake Manual Release

631E Series II Wheel Tractor-Scrapers Braking System - Test

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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 air system or the brake.

Correct any problem before attempting to operate the machine.

Block the wheels. This will prevent the machine from rolling away when the parking brake is disengaged.
Note: Proceed to Step 7 if air pressure is not available.
Connect a pressure air hose from an operating machine or from a portable air compressor to the air inlet port of the rotochamber. Fill the rotochamber with pressure air in order to release the parking brake temporarily.
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Illustration 1 g00916527
Remove cotter pin (1) from link pin (2). Remove the link pin.
Turn adjusting screw (3) counterclockwise. Turn adjusting shaft (4) counterclockwise until body (6) of the slack adjuster does not contact brake rod (5).
Disconnect the pressure air hose. The brake rod should not contact body (6). The brake should be released now. If the brake rod still contacts the body, loosen adjusting shaft (4) more.
Repeat Step 2 through Step 5 for each wheel.
If air pressure is not available to release the brake, loosen adjusting screw (3). Turn adjusting screw (3) counterclockwise.
Turn adjusting shaft (4) so that body (6) moves downward.
Turn adjusting shaft (4) until pin (2) can be moved freely. The brake should be released.
Repeat Step 7 through Step 9 for each wheel.