Harbor Freight Tools 67697 - Manual (Page 13)

Page 13 For technical questions, please call 1-800-444-3353. Item 67697
SAFET
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AINTENAN
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PARTS LIST
SETUP
Troubleshooting
Problem Possible causes Likely Solutions
Compressor builds
pressure too slowly
1. Crankcase oil overfilled or oil too thick.
2. Working environment too cold.
3. Loose fittings.
1. Drain oil and refill to proper level with recommended oil.
2. Move compressor to a warmer location.
Check that recommended oil is in crankcase.
3. Reduce air pressure, then check all fittings with
a soap solution for air leaks and tighten as needed.
Do not overtighten.
Compressor not
building enough
air pressure
1. Air filters need cleaning/replacing.
2. Compressor not large enough for job.
3. Loose fittings.
4. Hose or hose connections too narrow.
5. Crankcase oil too thick.
6. High altitude reducing air output.
1. Check inlet and outlet filters.
Clean and/or replace as needed.
2. Check if accessory CFM is met by Compressor.
If Compressor cannot supply enough air flow (CFM),
you need a larger Compressor.
3. Reduce air pressure, then check all fittings with
a soap solution for air leaks and tighten as needed.
Do not overtighten.
4. Replace with wider hose and/or hose connections.
5. Drain oil and refill to proper level with recommended oil.
6. Higher altitudes require compressors with greater output.
Overheating 1. Air filters need cleaning/replacing.
2. Crankcase oil too thin or incorrect type.
3. Crankcase oil level too low.
4. Unusually dusty environment.
5. Unit not on level surface.
1. Check inlet and outlet filters.
Clean and/or replace as needed.
2. Drain oil and refill to proper level with recommended oil.
3. Add oil to proper level, check for leaks.
4. Clean and/or replace filters more often or
move unit to cleaner environment.
5. Reposition unit on a level surface.
Excessive noise 1. Loose fittings.
2. Loose or damaged belt guard.
3. Crankcase overfilled with oil or oil
is incorrect thickness or type.
4. Crankcase oil level too low.
5. Unit not on level surface.
1. Reduce air pressure, then check all fittings with a soap
solution for air leaks and tighten as needed.
Do not overtighten.
2. Replace belt guard.
3. Drain oil and refill to proper level with recommended oil.
4. Add oil to proper level, check for leaks.
5. Reposition unit on a level surface.
Moisture in
discharge air
Too much moisture in air. Install inline air filter/dryer, and/or relocate
to less humid environment.
Air leaks from
pump or fittings
Loose fittings. Reduce air pressure, then check all fittings with a soap
solution for air leaks and tighten as needed.
Do not overtighten.
Oil in discharge
air or high oil
consumption
1. Crankcase oil too thin or
crankcase overfilled with oil.
2. Unit not on level surface.
3. Crankcase vent clogged.
1. Drain oil and refill to proper level with recommended oil.
2. Reposition unit on a level surface.
3. Clean Crankcase vent.
Follow all safety precautions whenever diagnosing or servicing the compressor.
Disconnect power supply before service.