CORD AS 9R7958 - Caterpillar

Service Brake Holding Ability Test
Personal injury can result from a sudden stop during brake test.Make sure the area is clear of personnel and obstructions before testing the brakes. Fasten the seat belt before moving the machine.
If the machine begins to move during the test, engage the parking brake immediately.Make sure that the area around the machine is clear of personnel and of obstacles.Test the service brakes on a dry, level surface.Fasten the seat belt before you test the brakes.The following test determines if the service brakes are functional. This test is not intended to measure the maximum brake holding effort. The maximum brake holding effort that is required to hold a machine stationary at a certain engine rpm varies between machines. These differences are caused by differences in the following factors:
Engine setting
Power train efficiency
Brake holding ability
Other factors
Illustration 1 g00893431
(1) Service brake pedal (2) Travel speed pedal
Start the engine. Keep the engine speed at low idle.
Slightly raise all implements.
Depress service brake pedal (1) .
Illustration 2 g01104229
The soft switch panel is located on the right console. (3) Parking brake control (4) Transmission control
Release the parking brake by pushing down on the button for the parking brake control (3) .
Push the button for the transmission control (4) once in order to select FIRST GEAR. The first LED light will illuminate.
Without releasing the service brake pedal, depress the front of travel speed pedal (2) to the FORWARD position. The machine should not move. Release the travel speed pedal.
Engage parking brake (3). This is the end of the test of the service brakes.
Lower all the implements to the ground.
Stop the engine.
If the machine moved while testing the service brakes, contact your Caterpillar dealer.Have the dealer inspect and, if necessary, repair the service brakes before returning the machine to operation.
Testing the Brake Accumulator
Move the engine start switch key to the ON position.
If the accumulator is not at normal operating pressure, the monitor will display a "BRAKE PRESSURE LOW" warning.
Start the engine.
Run the engine for two minutes in order to increase the accumulator pressure. The warning message on the monitor should turn off.
Stop the engine.
While the engine is stopped, turn the engine start switch to the ON position. Apply the service brakes for two or three times. If the warning message on the monitor comes on, consult your Caterpillar dealer.