EDGE-CUTTING 7T3494 - Caterpillar

If the machine moves during the test, reduce the engine speed immediately, and engage the parking brake.If the machine moved while testing the brakes, consult your Caterpillar dealer for brake inspection and repair. Damaged brakes must be repaired before returning the machine to operation.
Make sure that the area around the machine is clear of personnel and of obstacles.Test the brakes on a dry, level surface.Fasten the seat belt before you test the brakes.Use the service brake holding ability test to determine if the service brake is functioning properly. The service brake holding ability test is not intended to measure the maximum brake holding effort. While the engine is at a specific rpm, the brake holding effort that is required to hold a machine will vary for different machines. The engine setting, the power train efficiency, the brake holding ability, and other various conditions affect the variances in the brake holding effort.Note: A 9U-7401 Multitach Group may be used to perform the following test.While the service brake is engaged, measure the rpm at the beginning of the machine movement. Compare this measurement with the results from the prior test of your machine. The difference between the two measurements is an indication of the deterioration of the service brake system.
Start the engine.
Apply the service brakes.
Select the mode of manual shift.
Release the parking brake.
While the service brakes are applied, move the transmission control lever to NEUTRAL .
Select the THIRD SPEED position. The control panel will indicate "3N" .Note: When you test the brake system, make sure that the transmission is in the THIRD SPEED position. You can depress the button in order to read the speed on the digital display window.
Select the FORWARD. The control panel will indicate "3F" .
Gradually increase the engine speed to full load speed. The machine should not move.Note: If the machine begins to move, reduce the engine speed immediately and engage the parking brake.
Move the transmission control lever to the NEUTRAL position.
Turn on the parking brake switch.
Stop the engine.If the machine moved during the service brake holding ability test, consult your Caterpillar dealer for an inspection of the brakes and for any necessary repairs. Do not operate the machine until the necessary repairs have been completed.