user manual

Page 12For technical questions, please call 1-800-444-3353.SKU 93785
Note: SAE 30W non-detergent Air
Compressor Oil (sold separately) is
recommended for use with this pump.
If uncertain which oil to use, please
call Harbor Freight Tools customer
service at 1-800-444-3353 for
assistance.
Change the compressor oil after
the rst hour of use to remove any
debris.
WARNING! To prevent serious injury from
burns: Do not add or change the
oil while the motor is in operation.
Allow the components to cool before
replacing oil.
GENERAL OPERATING
INSTRUCTIONS
Read the ENTIRE IMPORTANT
SAFETY INFORMATION
section at the beginning of this
manual including all text under
subheadings therein before set
up or use of this product.
Close the Drain Valve.1.
Make sure all nuts and bolts are tight.2.
Check for oil leaks and check the oil 3.
level (See Checking the Oil).
Close the in-line Shutoff Valve 4.
between the compressor and the air
hose.
Make sure the air tool’s throttle or 5.
switch is in the off position.
Connect the air tool to the air hose. 6.
Plug the Air Compressor Power Cord 7.
into a grounded 120 V electrical
outlet.
Open the in-line Shutoff Valve.8.
Turn the Power Switch ON. 9.
Allow the Air Compressor to build up 10.
pressure until it cycles off.
Check that the V-belt does not vibrate 11.
and listen for abnormal noise, air
leaks or vibration.
If there is a problem, turn power off 12.
and release air pressure from the line
before attempting repairs.
Note: At the beginning of the day’s rst
use of the Air Compressor, check for
air leaks by applying soapy water to
connections while the Air Compressor
is pumping and after pressure
cut-out. Look for air bubbles. If air
bubbles are present at connections,
tighten connections. Do not use the
air compressor unless all connections
are air tight, air leaks will cause the
compressor to operate too often,
increasing wear on the compressor.
Note: As long as the Power Switch is ON,
the operation of the Air Compressor
is automatic, controlled by an internal
pressure switch. The Compressor
will turn on automatically when the
air pressure drops to the minimum
PSI as indicated on the Pressure
Gauge, and will turn off automatically
when the air pressure reaches
the maximum PSI as indicated.
IMPORTANT: The internal pressure
switch is not user adjustable, do not
make changes to the air pressure
settings of the internal pressure
switch. Any change to the automatic
pressure levels may cause excess
pressure to accumulate, causing a
hazardous situation.
REV 09j