Harbor Freight Tools 93351 Air Compressor User Manual


 
SKU 93351 For technical questions, please call 1-800-444-3353. Page 16
TROUBLESHOOTING
Problem Possible Solutions
Air Compressor does not start. Make sure the ON/OFF Knob (86) is in its “ON” (up) position.
Make sure the Power Cord/Plug (64) is undamaged and plugged into
a working 120 volt, grounded, electrical outlet.
Check to see if the Circuit Breaker (31) has “tripped”. If necessary,
allow the Compressor to completely cool. Then, reset the Circuit
Breaker.
Pull the Safety Valve (67) to release air pressure from the Tank (50)
to allow for easier starting.
Make sure the Air Filter (85) is clean and not blocking air flow.
Air Compressor automatically
shuts down.
Check to see if the Circuit Breaker (31) has “tripped”.
If necessary, allow the Compressor to completely cool. Then, reset
the Circuit Breaker.
Make sure the Compressor is plugged into a dedicated circuit with
no other items sharing the electrical outlet.
Check to make sure the oil level in the Compressor is at its proper
level to prevent overheating.
Make sure the Air Filter (85) is clean and not blocking air flow.
Air Compressor does not build
up adequate air pressure in its
Tank.
Make sure the Drain Valve (59) is completely closed.
Make sure the Safety Valve (67) is completely closed.
Make sure the Air Outlet Valve (69) is completely closed.
Make sure the Air Filter (85) is clean and not blocking air flow.
Check all air fittings and connections for leaks.
Air Compressor does not pro-
vide required air pressure to the
pneumatic tool.
Verify that this compressor is of sufficient capacity to provide ad-
equate airflow (CFM) to the tool.
Make sure the Air Outlet Valve (69) is completely open.
Increase air pressure to the pneumatic tool by turning the Pressure
Regulator (70) clockwise.
Check for obstructions, sharp bends, and leaks in the air hose con-
necting the Compressor to the pneumatic tool.
Check all air fittings and connections for leaks.
Air requirement of the tool exceeds the compressor’s capacity. See
CFM output on page 2.