SYMPTOM | CAUSE | REMEDY | |
| Out of fuel | Check fuel level and add fuel if necessary. | |
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| Fuel filter restricted. | Change fuel filter. | |
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| a. Engine collant level low; add coolant. | |
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| b. Compressor oil and radiator flow | |
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| restricted; clean coolers. | |
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| c. Fan belts slipping or broken; repair or | |
Machine shuts | Safety shutdown switches | replace. | |
d. Compressor oil low; add oil. | |||
down with air | activated. | ||
e. Engine oil level low; add oil. | |||
demand present. |
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| f. Compressor oil filter restricted; change | ||
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| the filter. | |
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| g. Engine oil filter restricted; change the | |
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| filter. | |
| Defective safety shutdown | Check the shutdown switches. | |
| switch. | ||
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| Thermostatic valve | Clean or replace the thermostatic | |
| malfunctioning. | element. | |
| Defective gauge. | Replace the gauge. | |
| Air demand too great. | Check service lines for leaks or open | |
Machine will not | valves. | ||
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| a. Check to see fit the blowdown valve is | ||
build up pressure | Blowdown valve open. | ||
getting a pilot signal. | |||
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| b. Repair or service valve. | |
| Faulty coupling. | Replace the coupling. | |
| Defective gauge. | Replace the gauge. | |
With no demand | Air cylinder not fully | a. Check for restrictions in the control | |
lines. | |||
the compressor | extending. |
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b. Repair or replace control air cylinder. | |||
builds excessive |
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| c. Check that the inlet valve is closing. | ||
pressure. |
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Pressure regulator not | a. Adjust the regulator | ||
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| properly adjusted or faulty. | b. Repair or replace the regulator. | |
| Compressor undersized for | Recheck maximum air requirement. | |
| the air requirement. | ||
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| Engine speed low. | Check speed and adjust as necessary. | |
Insufficent air |
| a. Check air filter for dirt and make sure | |
| the indicator is working. | ||
delivery | Air intake restricted | b. Look for obstructions in the filter and | |
| inlet piping. | ||
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| c. Check that the inlet valve is opening | |
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| fully. | |
| Faulty drive coupling. | Replace the coupling. |