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Sudden movement of the machine can cause injury to persons on or near the machine. To prevent possible injury, perform the procedure that follows before testing and adjusting the water spray system. |
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Escaping fluid under pressure, even a pinhole size leak, can penetrate body tissue, causing serious injury, and possible death. If fluid is injected into your skin, it must be treated immediately by a doctor familiar with this type of injury. Always use a board or cardboard when checking for a leak. |
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Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the machine. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop Products Guide", for tools and supplies suitable to collect and contain fluids in Caterpillar machines. Dispose of all fluids according to local regulations and mandates. |
The checks during operation can be used to find leakage in the system. These checks can be used to find a bad valve, a bad pump, or a bad motor.
Problem
When the switch is in the CONTINUOUS SPRAY position, there is no spray from either drum.
Probable cause
- There is no water in the tanks.
- The system has locked up.
- There is a fault with the electrical wiring.
- The water spray switch failed.
- The suction strainer from the water pump is plugged.
- The water pump is faulty.
Problem
When the switch is in the INTERMITTENT SPRAY position, there is no spray from either drum.
Probable cause
- There is no water in the tanks.
- The system has locked up.
- There is a fault with the electrical wiring.
- The water spray switch failed.
- The intermittent timing relay failed.
- The system has low voltage.
Problem
The pattern of spray is not consistent.
Probable cause
- The nozzle of the strainer is plugged.
- The nozzle orifice is plugged.
- The pump is faulty.
- The strainer is plugged.