HARNESS AS-CONTROL 3103946 - Caterpillar

Check Procedure
Check the area around the machine. Make sure that the machine is clear of personnel and clear of obstacles.Check the brakes on a dry, level surface.Fasten the seat belt before you check the brakes.The following check is used to determine if the parking brake is functional. This check is not intended to measure the maximum brake holding effort. The brake holding effort that is required to sustain a machine at a specific engine rpm varies depending on the machine. The variations are the differences in the engine setting, in the power train efficiency, and in the brake holding ability.
Start the engine. Raise the bucket slightly.
Illustration 1 g03689297
Engage the parking brake.
With the parking brake applied, move the transmission control lever to the FORWARD position, the machine will not move. With the parking brake applied, move the transmission control lever to the REVERSE position, the machine will not move.Note: Your machine is equipped with a feature called park brake drive through. With the parking brake applied, move the transmission control lever to FORWARD then to NEUTRAL and back to FORWARD, then gradually increase engine speed and the machine will move. Parking brake drive through can also be done by moving the transmission control lever to REVERSE then to NEUTRAL and back to REVERSE, then gradually increase engine speed and the machine will move.Note: Place machines that are equipped with all wheel drive into two-wheel drive mode.Note: For machines with manual transmissions, place the gear selector in the THIRD gear position.Note: For machines with autoshift transmissions, place the gear selector in the FOURTH gear position.Note: The parking brake indicator light should come on and the parking brake alarm should sound.
Gradually increase the engine speed to 2000 rpm. The machine should not move.
If the machine begins to move, reduce the engine speed immediately and apply the service brake pedal.
Reduce the engine speed. Move the transmission to NEUTRAL. Lower the bucket to the ground. Stop the engine.Adjustment Procedure
If the machine moved during the test, perform the following procedure in order to adjust the parking brake.
Apply the service brakes.
Disengage the parking brake.
As you view the parking brake adjuster knob from the operator seat, turn the knob clockwise for one half of a turn.
Start the engine. Raise the bucket slightly.
Engage the parking brake.
With the parking brake applied, move the transmission control lever to the FORWARD position, the machine will not move. With the parking brake applied, move the transmission control lever to the REVERSE position, the machine will not move.Note: Your machine is equipped with a feature called park brake drive through. With the parking brake applied, move the transmission control lever to FORWARD then to NEUTRAL and back to FORWARD, then gradually increase engine speed and the machine will move. Parking brake drive through can also be done by moving the transmission control lever to REVERSE then to NEUTRAL and back to REVERSE, then gradually increase engine speed and the machine will move.
Gradually increase the engine speed to high idle. The machine should not