Harbor Freight Tools 66399 - Manual (Page 9)

Page 9 For technical questions, please call 1-800-444-3353. SKU 66399
and liquid soap (no harsh powder soap),
rinse thoroughly, and let dry
4. Insert back into the filter holder. Align
the three indexing ribs on filter housing
with the three recessed grooves in the fil-
ter cover and push the cover, snapping it
onto the housing. Thread the assembly
back into the front cover, being careful
not to cross thread it.
5. Lubricate the Shaft (30) and Piston Ring
(31) after using 20 times.
a. Remove four Screws (4) holding the
Front Cover (5) in place and slide the
Front Cover off. (See Assembly Dia-
gram.)
b. Put a drop or two of machine oil on the
Shaft (30) and Piston Ring (31). Note:
Turn the Compressor upside down to
allow the oil to penetrate onto the piston
rings.
c. Slide the Front Cover back on and se-
cure in place with the four screws.
6. If the Fuse (26) needs to be replaced,
snap off Fuse cover and then remove
and replace Fuse.
7. Slide out Fuse holder, replace old Fuse
with new Fuse included in the inflator
nozzle bag, and slide Fuse holder back
into slot. Fasten back into place with
screws.
Troubleshooting
Problem Possible Causes Likely Solutions
Decreased output. 1. Not enough air pressure and/
or air flow.
2. Blocked air inlet Filter (3).
3. Air leaking from loose housing
or connections.
4. Mechanism contaminated.
1. Check for loose connections .
2. Clean air inlet screen of buildup.
3. Make sure housing and connections are
properly assembled and tight.
4. Have qualified technician clean and where
possible, lubricate mechanism.
Severe air
leakage.
(Slight air leakage
is normal,
especially on older
tools.)
1. Cross-threaded housing
components.
2. Loose housing.
3. Damaged valve or housing.
4. Dirty, worn or damaged valve.
1. Check for incorrect alignment and uneven
gaps. If cross-threaded, disassemble and
replace damaged parts before use.
2. Tighten housing assembly. If housing cannot
be tightened properly, internal parts may be
misaligned.
3. Replace damaged components.
4. Clean or replace valve assembly.
No output 1. Poor clamp connection.
2. Power Switch in Off (O)
position.
3. Run-down battery.
4. Blown Fuse.
1. Clean clamps and reconnect properly.
2. Turn Power Switch to On (I) position.
3. Recharge battery.
4. Replace Fuse.
Follow all safety precautions whenever diagnosing or servicing the
tool. Disconnect from inflated item before service.
REV 10d