PLATE 5M9684 - Caterpillar

Parking And Secondary Brake Holding Ability Test
Make sure that the area around the machine is clear of personnel and clear of obstacles.Test the parking brake on a dry surface on an incline of 15%.Carry out this test with the rated load in the body.Fasten your seat belt before you test the parking brake.Note: The machine is equipped with a secondary braking system. If the engine is running, the front service brakes and the parking brake will be applied when the parking and secondary brake control is moved to the ENGAGED position.Use the following procedure to determine whether the parking brake is functional. This test is not intended to measure the maximum brake holding effort. The test checks correct operation of the parking brake only.
Stop the machine on an incline of 15%.
Engage the parking brake. Move the transmission control to the NEUTRAL position.
Release the service brake.
Shut off the engine.
If the machine moves, apply the service brake immediately. Start the engine. Disengage the parking brake and drive the machine to level ground. Machine movement indicates that the parking brake requires service.
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.