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Personal injury can result if the machine moves while checking the service brakes. If the machine begins to move during the check, reduce the engine speed immediately and engage the parking brake. |
This test will determine if the service brakes are functional. The test 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.
Test the brakes on a dry, level surface. Make sure that the area around the machine is clear. Move the machine away from other operating machines and away from personnel.
- Make sure that steering frame lock (1) is in the STORED position.
- Fasten the seat belt before you test the service brakes.
- Start the engine. Raise the bucket slightly.
- Place the transmission neutralizer override switch in the LOCKED position.
- Apply the service brakes and disengage the parking brake.
- Place the transmission direction and speed control lever in the SECOND GEAR REVERSE position.
- Gradually increase the engine speed to high idle. The machine should not move.
Note: Do not run the engine at high idle for more than 5 seconds.
- Reduce the engine speed to low idle. Place the transmission direction and speed control in the NEUTRAL position. Engage the parking brake.
- Lower the bucket to the ground. Stop the engine.
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| Illustration 1 | g00785358 |
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Steering Frame Lock (1) Steering frame lock in the STORED position. | |
| NOTICE |
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If the machine moved while testing the service brakes, inspect the service brake components for wear or damage. Repair or replace the worn or damaged service brake components as required before returning the machine to service. |