OPERATION
• Pressure Switch - Auto/Off Switch (Figura 6) - In the
AUTO position, the compressor shuts off automatically
when tank pressure reaches the maximum preset
pressure. In the OFF position, the compressor will not
operate. This switch should be in the OFF position when
connecting or disconnecting the power cord from the
electrical outlet or when changing air tools.
(Figura 6) - Auto/Off Switch
• 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.
• Exhaust 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 exhaust tube.
• Check Valve - A one-way valve that allows air to enter
the tank, but prevents air in the tank from flowing back
into the compressor pump.
• Handle - Designed to move the compressor.
WARNING
Never use the handle on wheeled units
to lift the unit completely off the ground.
• Drain Valve - 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
by opening the drain valve located underneath the tank.
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.
OFF
AUTO
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.
BEFORE FIRST START-UP BREAK-IN PROCEDURE
(Complete this procedure before using compressor for
the first time. Once completed, it is not necessary to repeat.)
1. Turn regulator knob fully clockwise (to the right) to open
air flow.
2. Turn on/off switch to OFF position.
3. Plug in power cord.
4. Turn on/off switch to AUTO position and run compressor
for 30 minutes.
5. Turn on/off switch to OFF position.
6. Unplug power cord- open drain valve.
The compressor is now ready for use.
BEFORE FIRST START-UP OPERATING PROCEDURE
1. Turn regulator knob fully counter clockwise (to the left)
to close air flow.
2. Connect air hose to outlet of regulator.
3. Turn on/off switch to OFF position.
4. Plug in power cord.
5. Turn on/off switch to AUTO position and let compressor
run until it reaches automatic shutoff pressure.
6. Attach tire chuck or tool to end of hose.
7. Turn regulator knob clockwise (to the right) to desired
pressure of tool being used.
On/Off cycling of compressor
In the AUTO position, the compressor pumps air into the tank.
When a shutoff (preset "cut-out") pressure is reached,
the compressor automatically shuts off.
If the compressor is left in the AUTO
position and air is depleted from the tank by use of a tire
chuck, tool, etc., the compressor will restart automatically at
its preset "cut-in" pressure. When a tool is being used
continuously, the compressor will cycle on and off
automatically.
In the OFF position, the pressure switch cannot function and
the compressor will not operate. Make sure switch is in OFF
position when connecting or disconnecting power cord from
electrical outlet.
WARNING
Do not remove or attempt to adjust
the safety valve!
Check the safety valve by performing the following steps:
1. Plug the compressor in and run until shut off pressure
is reached (see Operating Procedure).
2. Wearing safety glasses, pull the ring on the safety valve
(see Figures 5 and 7) to release pressure from
compressor tank. Use your other hand to deflect
fast-moving air from being directed toward your face.
5