Harbor Freight Tools 66399 Air Compressor User Manual


 
SKU 66399 For technical questions, please call 1-800-444-3353. Page 9
Note: Turn the Compressor upside
down to allow the oil to penetrate
onto the piston rings.
Slide the Front Cover back on and c.
secure in place with the four screws.
If the Fuse (26) needs to be replaced, 6.
snap off Fuse cover and then remove
and replace Fuse.
Slide out Fuse holder, replace old 7.
Fuse with new Fuse included in the
inator nozzle bag, and slide Fuse
holder back into slot. Fasten back
into place with screws.
When the tool needs servicing, it 8.
should only be serviced by a qualied
technician.
Decreased output. Not enough air pressure and/1.
or air ow.
Blocked air inlet Filter (3).2.
Air leaking from loose housing 3.
or connections.
Mechanism contaminated. 4.
Check for loose connections1. .
Clean air inlet screen of buildup.2.
Make sure housing and connections are 3.
properly assembled and tight.
Have qualied technician clean and where 4.
possible, lubricate mechanism.
Severe air
leakage.
(Slight air leakage
is normal,
especially on older
tools.)
Cross-threaded housing 1.
components.
Loose housing. 2.
Damaged valve or housing.3.
Dirty, worn or damaged valve. 4.
Check for incorrect alignment and uneven 1.
gaps. If cross-threaded, disassemble and
replace damaged parts before use.
Tighten housing assembly. If housing cannot 2.
be tightened properly, internal parts may be
misaligned.
Replace damaged components.3.
Clean or replace valve assembly.4.
No output Poor clamp connection.1.
Power Switch in Off (O) 2.
position.
Run-down battery.3.
Blown Fuse.4.
Clean clamps and reconnect properly.1.
Turn Power Switch to On (I) position. 2.
Recharge battery.3.
Replace Fuse. 4.
Follow all safety precautions whenever diagnosing or servicing the
tool. Disconnect from inated item before service.
Problem Possible Causes Likely Solutions
Troubleshooting
REV 10d