97 Maintenance Section Bucket Cutting Edges - Inspect/Replace The following tests are used to determine whether the braking system is functional. These tests are not intended to measure the maximum brake holding effort. The required brake holding effort for sustaining a machine at a specific engine rpm varies from one machine to another machine. The variations include differences in the engine setting, the power train efficiency, the brake holding ability, etc. 1. Start the engine. Raise the implement slightly. Engage the parking brake. 2. Move the transmission control to THIRD SPEED REVERSE. Make sure that the autoshift control is in the OFF position.
The parking brake indicator light should come on. Service Brake Holding Ability Test 3. Gradually increase the engine speed to high idle. The machine should not move. 4. Reduce the engine speed to low idle. Move the transmission direction control to the NEUTRAL position. Lower the implement to the ground. Stop the engine. Personal injury can result if the machine moves while testing. If the machine begins to move during test, reduce the engine speed immediately and engage the parking brake. If the machine moved during the test, consult your Caterpillar dealer for a brake inspection. Make any necessary repairs before the machine is returned to operation. 1. Start the engine.
Raise the implement slightly. Apply the service brake. Release the parking brake. i01697186 Bucket Cutting Edges - Inspect/Replace 2. Move the transmission control to SECOND SPEED REVERSE while the service brakes are applied. Make sure that the autoshift control is in the OFF position. SMCS Code: 6801-040; 6801-510 3. Gradually increase the engine speed to high idle. The machine should not move. Personal injury or death can result from bucket falling. 4. Reduce the engine speed to low idle. Move the transmission direction control to the NEUTRAL position. Engage the parking brake. Lower the implement to the ground. Stop the engine. Block the bucket before changing bucket cutting edges.
If the machine moved during the test, consult your Caterpillar dealer for a brake inspection. Make any necessary repairs before the machine is returned to operation. Parking Brake Holding Ability Test Personal injury can result if the machine moves while testing. If the machine begins to move, reduce the engine speed immediately and apply the service brake pedal. g00764365 Illustration 142 Check the cutting edges and the end bits for wear and for damage. Use the following procedure to service the cutting edges and the end bits, if necessary. This test is performed when the parking brake is engaged. If the machine begins to move, compare the engine rpm to the engine rpm of a prior test.
This will indicate the amount of system deterioration.