Know your compressor, Getting started, Assembly – Northern Industrial Tools 2 HP / 4 GALLON AIR COMPRESSOR User Manual
KNOW YOUR COMPRESSOR
Handle: Convenient, rubber gripped handle allows
for easy transport of your air compressor.
Air Regulator: The air regulator controls the air
flow pressure. Turn regulator clockwise to increase
air pressure, counter-clockwise to decrease air
Air Chuck: Convenient quick disconnect air chuck
allows for fast easy connection to an air hose.
Tank Drain Valve: The Tank Drain Valve can be
opened to allow moisture and compressed air to be
released from the Air Tank.
WARNING! Tank Drain Valve should always be
opened slowly to avoid damage to equipment and
Air Filter: This heavy duty metal air filter keeps
your compressor running cleanly, by filtering out
Oil Breather Cap: As the compressor motor
operates pressurized air must be released from the
crank case. The oil breather cap allows built up air
to escape, while shielding your air compressor from
Power Switch: The red tipped power switch turns
the air compressor on and off. When switch is
pulled up, compressor is turned ON. When switch is
pushed down, compressor is turned OFF.
Note: Always make sure that compressor Power
Switch is in the OFF position before
performing any maintenance or plugging the
compressor into a power supply.
Pressure Gauges: These dual gauges indicate the
amount of air pressure built up in the air tank, as
well as the air pressure being delivered to the air
Safety Valve: The Safety Valve device relieves
pressure from the Air Tank in the event of excessive
pressure build up. The Safety Valve is preset at
factory. Do not attempt to make any adjustments to
the Safety Valve. Periodically pull the ring on the
Safety Valve end to check that it is working properly.
Air Tanks: Two powder coated steel tanks, with a 4
gallon capacity, stores the compressed air until it is
Before operating your tool, check the contents of
the box to make sure you have everything you
Items included in the box:
Oil Breather Cap
Bottle of Oil
NOTE: Before performing any assembly or
maintenance make sure compressor is turned off
and unplugged from the power supply.
Installing the Oil and Oil Breather Cap
Your air compressor is shipped without oil in the
crankcase. BEFORE STARTING THE AIR
COMPRESSOR YOU MUST ADD OIL TO THE
CRANKCASE AS DESCRIBED BELOW:
1. Place compressor on level ground.
2. Remove the Oil Shipping Plug from the Oil Fill
hole, located on the top of the crankcase cover
at the rear of the air compressor.
Figure 1. Air Compressor