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Troubleshooting
The troubleshooting procedures to be performed on the equipment are listed below. Each symptom
of trouble for a component or system is followed by a list of probable causes of the trouble and
suggested procedures to be followed to identify the cause.
In general, the procedures listed should be performed in the order in which they are listed, although
the order may be varied if the need is indicated by conditions under which the trouble occurred. In
any event, the procedures which can be performed in the least amount of time and with the least
amount of removal or disassembly of parts, should be performed first.
LOW OIL PRESSURE
1. Low oil level.
2. Loose pipe plug on oil pump cover.
3. Worn or defective oil pump.
4. Crack or scratch on oil pump cover.
NO OIL PRESSURE
1. Defective oil pump
2. Blocked oil passage.
3. Damage oil pump drive pin.
COMPRESSOR WILL NOT ENGAGE
1. No power supplied to compressor.
2. Internal circuit breaker tripped.
3. Hydraulic system not engaged.
4. Defective pressure switch.
COMPRESSOR ENGAGES BUT WILL NOT PRESSURIZE TANK
1. Air leak in plumbing.
2. Worn piston rings or valve plates.
COMPRESSOR DOES NOT RECOVER PRESSURE AS FAST AS IT SHOULD
1. Dirty filter.
2. Air leak in plumbing.
3. Worn valve plates or piston rings.
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