AXLE & TRANSMISSION AR 2374525 - Caterpillar

Parking Brake Troubleshooting
Many of the following problems can create diagnostic codes or event codes in Cat ET. These codes can help find the root cause of the problem. Cat ET should be used to retrieve the logged codes and active codes.The Parking Brake Does Not Hold The Machine Stationary
The brake linings are worn.
There is grease or oil on the brake disc or linings.
The parking brake is out of adjustment and must be adjusted.
There is a mechanical issue or damage to the parking brake caliper.
There is a problem with the parking brake valve not releasing pressure in the parking brake actuator.
There is debris trapped in the parking brake caliper.The Parking Brake Does Not Engage When The Parking Brake Switch Is Depressed
The brake linings are worn.
The parking brake is out of adjustment and must be adjusted.
There is a mechanical issue or damage to the parking brake caliper.
There is a problem with the parking brake valve not releasing pressure to the parking brake.
There is debris trapped in the parking brake caliper.
There is an electrical problem with the operator switch or the machine harness.The Parking Brake Does Not Disengage When The Parking Brake Switch Is Depressed
There is a mechanical issue or damage to the parking brake caliper, such as a piston seal leak.
There is a problem with the parking brake valve not applying pressure to the parking brake.
There is an electrical problem with the operator switch or the machine harness.
There is a lack of supply pressure to the parking brake due to a leak. There is a lack of supply pressure to the parking brake due to a lack of pressure from the brake accumulators.
There is a lack of supply pressure to the parking brake due to a problem with the parking brake valve.