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Central Pneumatic 61693 Owner's Manual & Safety Instructions: Troubleshooting

21gal cast iron vertical air compressor.
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Troubleshooting

problem
Compressor does
1. Tank already pressurized.
not start or restart
2. Power cord not plugged in properly.
3. Incorrect power supply.
4. No power at outlet.
5. Thermal overload switch tripped.
6. Building power supply circuit tripped or
blown fuse.
7. Extension cord wire size is too small
or cord is too long to properly power
compressor.
8. Compressor needs service.
Compressor builds
1. Incorrect power supply.
pressure too slowly
2. Crankcase oil overfilled or oil too thick.
3. Working environment too cold.
4. Safety valve leaking.
5. Loose fittings.
Compressor not
1. Air filters need cleaning/replacing.
building enough
air pressure
2. Check Valve needs service.
3. Compressor not large enough for job.
4. Loose fittings.
5. Hose or hose connections too narrow.
6. Crankcase oil too thick.
7. High altitude reducing air output.
Follow all safety precautions whenever diagnosing or servicing the compressor.
Disconnect power supply before service.
Page 16
possible causes
For technical questions, please call 1-888-866-5797.
Likely Solutions
1. No problem. Compressor will start when needed.
2. Check that cord is plugged in securely.
3. Check that circuit matches compressor requirements.
4. Reset circuit breaker, or have outlet
serviced by a qualified technician.
5. Turn off Compressor and wait for it to cool down.
Press reset button. Resume operation.
6. Reset circuit or replace fuse. Check for low
voltage conditions. It may be necessary to
disconnect other electrical appliances from the
circuit or move the compressor to its own circuit.
7. Use larger diameter or shorter extension cord or
eliminate extension cord. See RECOMMENDED
MINIMUM WIRE
GAUGE FOR EXTENSION CORDS
(120 VOLT) on page 4.
8. Have unit inspected by a qualified technician.
1. Check that circuit matches compressor requirements.
2. Drain oil and refill to proper level
with recommended oil.
3. Move compressor to a warmer location.
Check that recommended oil is in crankcase.
4. Listen for air leaking from valve.
If leaking, replace with identical valve with same rating.
DO NOT SEAL OR TAMpER WITH SAFETy VALVE.
5. Reduce air pressure, then check all fittings with
a soap solution for air leaks and tighten as needed.
Do not overtighten.
1. Check inlet and outlet filters.
Clean and/or replace as needed.
2. Have technician clean or replace, as needed.
3. Check if accessory CFM is met by Compressor.
If Compressor cannot supply enough air flow (CFM),
you need a larger Compressor.
4. Reduce air pressure, then check all fittings with
a soap solution for air leaks and tighten as needed.
Do not overtighten.
5. Replace with wider hose and/or hose connections.
6. Drain oil and refill to proper level
with recommended oil.
7. Higher altitudes require compressors
with greater output.
ITEM 61693

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