4
Operating Instructions
Oilless Stationary Compressors
LUBRICATION
This is an oilless product and
DOES
NOT
require lubrication to operate.
BREAK-IN PROCEDURE
Do not attach air
chuck or other tool
to open end of hose until start-up has
been completed and unit checks OK.
IMPORTANT:
Do not operate
compressor before reading instructions
or damage may result.
1. Turn regulator fully clockwise to
open air flow.
2. Turn switch to OFF position and plug
in power cord.
3. Turn switch to AUTO position and
run unit for 30 minutes to break in
the pump parts.
4. Turn regulator knob fully
counterclockwise. Compressor will
build to maximum preset pressure
and shut off.
5. Turn regulator knob clockwise to
cause air to bleed off. Compressor
will restart at a preset pressure.
6. Turn regulator knob
counterclockwise to shut off the air
and turn switch to Off position.
7. Attach chuck or other tool to open
end of hose. Turn the regulator on.
In the AUTO position, the compressor
pumps air into the tank. It shuts off
automatically when unit reaches its
maximum preset pressure. In the OFF
position, the pressure switch cannot
function and the compressor will not
operate. This switch should be in the
OFF position when connecting or
disconnecting the power cord from the
electrical outlet.
ASME SAFETY VALVE
Do not remove or
attempt to adjust
the safety valve!
This valve should be
checked under
pressure occasionally
by pulling the ring by
hand. If air leaks after
ring has been
Figure 3
MOISTURE IN COMPRESSED AIR
Moisture in compressed air will form
into droplets as it comes from an air
compressor pump. When humidity is
high or when a compressor is in
continuous use for an extended
period of time, this moisture will
collect in the tank. When using a
paint spray or sandblast gun, this
water will be carried from the tank
through the hose, and out of the
gun as droplets mixed with the spray
material.
IMPORTANT:
This condensation
will cause water spots in a paint
job, especially when spraying other
than water based paints. If
sandblasting, it will cause the sand
to cake and clog the gun, rendering
it ineffective. A filter in the air line
(MP3105), located as near to the
gun as possible, will help eliminate
this moisture.
Drain
Petcock
Safety
Valve
Pressure
Switch
Regulator
Check Valve
(Opposite Side)
Off
Auto
Air Hose
Attachment
Discharge Tube
(Opposite Side)
Figure 4
power cord from the electrical outlet or
when changing air tools.
Regulator
- The regulator controls the
amount of air pressure released at the
hose outlet.
ASME Safety Valve
- This valve
automatically releases air if the tank
pressure exceeds the preset maximum.
Discharge tube
- This tube carries
compressed air from the pump to the
check valve. This tube becomes very hot
during use. To avoid the risk of severe
burns, never touch the discharge tube.
Check valve
- One-way valve that
allows air to enter the tank, but
prevents air in the tank from flowing
back into the compressor pump.
Drain Petcock
- This valve is located on
the bottom of the tank. Use this valve
to drain moisture from the tank daily
to reduce the risk of corrosion.
Reduce tank pressure below 10 PSI,
then drain moisture from tank daily to
avoid tank corrosion. Drain moisture
from tank(s) by opening the drain
petcock located underneath the tank.
Figure 5
Operation
(Continued)
