Checking The Oil - Central Pneumatic 67847 Owner's Manual And Safety Instructions

Checking the Oil

1. Check the oil level before operation. Fill the Pump
Crankcase (39) with SAE 30W, 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 overfilled or low oil. Slowly fill to
full line, wait 2 minutes and fill back up to full line.
Compressor has small passages that will fill slowly.
Crankcase Cover (31)
OIL LEVEL
OVERFILL
FULL
LOW
Figure H: Oil Sight Glass
2. The oil level should be at the center of the "full" level
on the oil level sight glass, as shown in Figure H. 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 overfill the oil so that it is above the center
dot (OVERFILL as shown above) on the sight glass.
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Oil Sight Glass (33)
Tank (70)
For technical questions, please call 1-800-444-3353.
3. To add oil:
a. Remove the Oil Plug (37).
b. Using a funnel to avoid spills, pour enough
oil into the Pump Crankcase (39) to reach
the "full" level in the Oil Sight Glass (33).
c. Replace the Oil Plug.
Cold Weather Operation
Premium quality 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.
4. If uncertain which oil to use for this compressor,
please call Harbor Freight Tools customer
service at 1-800-444-3353 for assistance.
5. Change the compressor oil after the first
hour of use to remove any debris.
CAUTION! TO PREVENT INJURY FROM BURNS:
Do not add or change the oil while
the compressor is in operation.
Allow the compressor to cool before replacing oil.
Item 67847