Harbor Freight Tools 67698 - Manual (Page 13)

Page 13 For technical questions, please call 1-800-444-3353. SKU 67698
Remove the Oil Drain Plug, allowing the c.
oil to drain into the container.
When the oil is completely drained from
d.
the Pump, replace the Oil Drain Plug.
Fill the Pump with new compressor oil
e.
to the FULL level on the Oil Sight Glass.
Replace and tighten the Oil Fill Plug.
f.
Discard the old oil according to local, g.
state and federal regulations.
Air Filter maintenance
Check the Air Filters weekly to see if they
need replacement. If working in dirty
environments, you may need to replace
the filters more often. To replace the Air
Filters:
Remove any cover that blocks access a.
to the Air Filters.
Remove the Air Filters.
b.
Replace with new Air Filters. c.
Replace the cover. d.
reV 10h
Troubleshooting
Problem Possible Causes likely solutions
Compressor builds
pressure too slowly
Crankcase overfilled with oil or 1.
oil too thick.
Working environment too cold.
2.
Loose fittings. 3.
Drain oil and refill to proper level with recommended oil. 1.
Move unit to a warmer location. Check that recommended oil 2.
is in crankcase.
Reduce air pressure, then check all fittings with a soap solution
3.
for air leaks and tighten as needed. Do not overtighten.
Compressor not
building enough air
pressure
Filters need cleaning/replacing. 1.
Crankcase oil too thick. 2.
Loose fittings. 3.
Check inlet and outlet filters. Clean and/or replace as needed. 1.
Drain oil and refill to proper level with recommended oil. 2.
Reduce air pressure, then check all fittings with a soap solution 3.
for air leaks and tighten as needed. Do not overtighten.
High Oil
Consumption
Crankcase oil too thin. 1.
Unit not on level surface. 2.
Crankcase vent clogged. 3.
Drain oil and refill to proper level with recommended oil. 1.
Reposition unit on a level surface. 2.
Clean Crankcase vent. 3.
Overheating Filters need cleaning/replacing. 1.
Crankcase oil incorrect type 2.
and/or thickness.
Crankcase oil level too low.
3.
Unusually dusty environment. 4.
Check inlet and outlet filters. Clean and/or replace as needed. 1.
Drain oil and refill to proper level with recommended oil. 2.
Add oil to proper level, check for leaks. 3.
Clean and/or replace filters more often or move unit to cleaner 4.
environment.
Excessive noise Crankcase overfilled with oil 1.
or oil is incorrect thickness or
type.
Crankcase oil level too low.
2.
Loose or damaged belt guard. 3.
Loose fittings. 4.
Unit not on level surface. 5.
Drain oil and refill to proper level with recommended oil. 1.
Add oil to proper level, check for leaks. 2.
Replace belt guard. 3.
Reduce air pressure, then check all fittings with a soap solution 4.
for air leaks and tighten as needed. Do not overtighten.
Reposition unit on a level surface.
5.
Oil in discharge air Crankcase oil too thin or 1.
crankcase overfilled with oil.
Crankcase vent clogged.
2.
Drain oil and refill to proper level with recommended oil. 1.
Clean Crankcase vent. 2.
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.
Follow all safety precautions whenever diagnosing or servicing the
compressor. disconnect power supply before service.