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Page 10 For technical questions, please call 1-800-444-3353. SKU 67708
Consult your air tool’s manual for needed
accessories.
Checking the Oil
Check the oil level before operation. 1.
Fill the Pump Crankcase with premium
quality SAE 30-weight, non-detergent, air
compressor oil (sold separately).
IMPORTANT: Running the Air Compressor
with the incorrect amount of oil will
cause damage to the equipment
and void the warranty. To prevent
damage, do not use with overlled
or low oil. Slowly ll to full line, wait
2 minutes and ll back up to full line.
Compressor has small passages that
will ll slowly.
Oil Sight Glass (33)
Crankcase Cover (31)
Tank (70)
OVERFILL
LOW
FULL
OIL LEVEL
Figure 5
2. The oil level should be at the center of
the “full” level on the oil level sight glass,
as shown in Figure 2. Add oil as needed
to maintain this level. Do not let the
oil level go below the center dot (LOW
as shown above) and do not overll
the oil so that it is above the center dot
(OVERFILL as shown above) on the
sight glass.
To add oil:3.
Remove the Oil Plug.a.
Using a funnel to avoid spills, pour b.
enough oil into the Pump Crankcase
to reach the “full” level in the Oil Sight
Glass.
Replace the Oil Plug.c.
Cold Weather Operation
Premium quality SAE 30-weight, non-
detergent, air compressor oil (sold
separately) is recommended for use
with this compressor. Start compressor
in heated area if outdoor temperatures
drop below 32° F. If this is not practical,
drain out the old pump oil and use SAE
10W Non-detergent Air Compressor Oil
in the pump crankcase instead whenever
the compressor’s temperature will fall
below 40°. Do not use multi-viscosity
oil (such as 10W-30), they leave carbon
deposits on pump components and lead
to accelerated failure. Heavy operation
may require heavier viscosity oil.
If uncertain which oil to use for this 4.
compressor, please call Harbor Freight
Tools customer service at 1-800-444-
3353 for assistance.
Change the compressor oil after the 5.
rst hour of use to remove any debris.
WARNING! To prevent serious injury from
burns: Do not add or change the oil while
the compressor is in operation. Allow the
compressor to cool before replacing oil.
REV 10e