ENGINE AR-LOADER 7S8287 - Caterpillar

Personal injury can result if the machine moves while testing the parking brake.If the machine begins to move during the test, reduce the engine speed immediately and apply the service brakes.
The following test is used to determine if the parking brake is functional. This test is not intended to measure the maximum brake holding effort. Machine Preparation
Check the area around the machine. Make sure that the machine is clear of personnel and clear of obstacles.
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Steering frame lock in the stored positionMake sure that the steering frame lock is in the STORED position.Test the parking brake on a dry, level surface.Fasten the seat belt before testing the parking brake.Testing Procedure
Start the engine. Raise the bucket slightly.
Engage the parking brake. Place the autoshift control switch in the MANUAL position. Place the transmission direction and speed control lever in the THIRD SPEED FORWARD position. Note: When the transmission is shifted to the THIRD SPEED FORWARD position and the parking brake is engaged a Warning Category 3 will occur.
Gradually increase the engine speed to high idle. The machine should not move.
Reduce the engine speed to low idle. Place the transmission direction and speed control lever in the NEUTRAL position.
Lower the bucket to the ground. Stop the engine.
If the machine moved while testing the parking brake, inspect the parking brake components for wear or damage. Repair or replace the worn or damaged parking brake components as required before returning the machine to service.