816F Series 2 Landfill Compactor, 815F Series 2 Soil Compactor and 814F Series 2 Wheel Dozer Caterpillar

Operation checks of the brake system can be used in order to find leakage in the system. Operation checks can also be used in order to diagnose performance problems.

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Personal injury or death can result from sudden machine movement. Sudden movement of the machine can cause injury to persons on or near the machine. Prevent possible injury by performing the procedure that follows before working on the machine.

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Sudden movement or accidental starting of the machine can cause personal injury or death to persons on or near the machine. To prevent personal injury or death, perform the following: Park the machine on a smooth, level surface. Lower the work tool to the ground and engage the parking brake. Stop the engine and remove the key. Block the wheels and install the steering frame lock.

Move the machine away from other operating machines and away from personnel. Park the machine on a smooth level surface. Stop the engine and lower the implement to the ground. Engage the parking brake. Place blocks in front of the wheels and behind the wheels. keep all other personnel away from the machine.

Perform the following inspections:

1. Check the oil level in the sight gauge.

2. Look for air in the oil that is in the hydraulic tank immediately after the engine is stopped. Use a clear container to obtain a sample of the oil. Look for air bubbles in the oil that is in the container.

3. Look for evidence of water contamination in the oil. The oil will appear to be milky.

4. Check all oil lines and all connections for damage and for leaks.

5. Inspect the braking system for damage.

Parking Brake Check

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Personal injury can result if the machine moves while checking the parking brakes.

The following check determines if the parking brake is functional. This check is not intended to measure the maximum brake holding effort. This check is tested with the machine on a 20 percent slope.

1. Be sure that the area around the machine is clear of personnel and obstructions.

2. Test the brakes on a hard dry surface.

3. Fasten the seat belt before you check the brakes.

4. Position the machine on a 20 percent slope.

5. Engage the parking brake and release the service brake. The wheels should not rotate. If the wheels rotate, apply the service brake.

6. If the wheels rotate and no leakage is found in the brake circuit then refer to Testing and Adjusting, "Braking System" for the machine that is being serviced.

The following check determines if the parking brake is functional. This check is not intended to measure the maximum brake holding effort. This check is tested with the machine on a level surface.

1. Be sure that the area around the machine is clear of personnel and obstructions.

2. Test the brakes on a hard dry surface.

3. Fasten the seat belt before you check the brakes.

4. Position the machine on a level surface.

5. Engage the parking brake and release the service brake. The wheels should not rotate. If the wheels rotate, apply the service brake.

6. Engage the parking brake.

7. To test the 814 machines, place the transmission control lever in third gear forward position. Gradually increase the engine speed to high idle.

   To test the 815 and 816 machines, place the transmission control lever to the second gear forward position. Gradually increase the engine speed to 1100 RPM. Do not exceed 1100 RPM.

8. The machine should not move when the parking brake is engaged.

9. Reduce engine speed to low idle. Shift into the NEUTRAL position and engage the parking brake lever. Lower the work tool to the ground.

10. If the wheels rotate and no leakage is found in the brake circuit then refer to Testing and Adjusting, "Braking System" for the machine that is being serviced.

Service Brake Check

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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.

The following check determines if the service brake is functional. This check is not intended to measure the maximum brake holding effort.

1. Make sure that the steering frame lock is in the stored position.

2. Be sure that the area around the machine is clear of personnel and obstructions.

3. Test the brakes on a dry, level surface.

4. Fasten the seat belt before you check the brakes.

5. Start the engine, and raise the work tool slightly.

6. Fully apply the right service brake pedal.

7. To test the 814 machines, place the transmission control lever to the third gear forward position. Gradually increase the engine speed to high idle.

   To test the 815 and 816 machines, place the transmission control lever to the second gear forward position. Gradually increase the engine speed to 1100 RPM. Do not exceed 1100 RPM.

8. The machine should not move when the service brakes are engaged.

9. Reduce engine speed to low idle. Shift into the NEUTRAL position and engage the parking brake lever. Lower the work tool to the ground.

10. Refer to System Operations Testing and Adjusting, "Braking System Troubleshooting" if the wheels rotate. Check for leakage in the brake circuit.