Troubleshooting
For your own safety do not try and run the air compressor while troubleshooting.
TROUBLE | PROBABLE CAUSE |
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Low discharge pres- | 1. Air leaks | 1. Listen for escaping air. | |||
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| Apply soap solution to all fit- | ||
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| tings and connections. | ||
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| Bubbles will appear at | ||
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| points of leakage. Tighten or | ||
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| replace leaking fittings or | ||
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| connections | ||
| 2. Leaking valves | 2. Remove head and inspect | |||
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| for valve breakage, weak | ||
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| valves, scored valve seats, | ||
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| etc. Replace defective parts | ||
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| and reassemble. | ||
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| Be sure that the old head | |||
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| gasket is replaced with a | |||
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| new one each time the head | |||
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| is removed | |||
| 3. Restricted air intake | 3. Clean the air filter element | |||
| 4. Slipping belts | 4. Loosen engine clamping | |||
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| bolts and move the engine | ||
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| in a direction away from the | ||
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| compressor, being sure that | ||
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| the engine pulley is perfectly | ||
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| aligned with the flywheel. | ||
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| Tighten engine clamping | ||
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| bolts. The belt should | ||
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| deflect about 1/2” under 5- | ||
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| lbs of force. Do not “roll” | ||
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| belts over pulleys | ||
| 5. Blown gaskets | 5. Replace any gaskets proven | |||
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| faulty on inspection | ||
| 6. Low compression | 6. Low pressure can be due to | |||
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| worn rings and cylinder | ||
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| walls. Correction is made by | ||
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| replacing the rings, cylin- | ||
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| ders, and pistons as | ||
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| required | ||
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