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AIR COMPRESSOR PUMP
To compress air, the piston moves up and down in the cylinder. On the downstroke, air
is drawn in through the intake valves. The exhaust valves remain closed. On the
upstroke of the piston, air is compressed. The intake valves close and compressed air
is forced out through the exhaust valves.
CHECK VALVE
When the air compressor is operating, the check valve is "open", allowing compressed
air to enter the air tank. When the air compressor reaches the "Cut-Out" pressure, the
check valve "closes", allowing air pressure to remain inside the air tank.
ON/OFF SWITCH (A) FIG.3
Turn this switch ON (press upwards) to provide power to the automatic pressure switch
and OFF to remove power at the end of each use.
PRESSURE SWITCH
The pressure switch automatically starts the motor when the tank pressure drops below
the factory set "Cut-In" pressure. It also stops the motor when the air tank pressure
reaches the factory set "Cut-Out" pressure.
REGULATOR (B) FIG.3
The air pressure coming from the air tank is controlled by the regulator. Turn the
regulator knob clockwise to increase pressure and counterclockwise to decrease
pressure. To avoid minor readjustment after making a change in the pressure setting,
always approach the desired pressure from a lower pressure. When reducing from a
higher to a lower setting, first reduce the pressure less than that desired, then bring it
up to the desired pressure. Depending on the air requirements of each particular
accessory, the outlet regulated air pressure may have to be adjusted while operating the
accessory.
OUTLET PRESSURE GAUGE (C) FIG.3
The outlet pressure gauge indicates the air pressure available at the outlet side of the
regulator. The pressure is controlled by the regulator and is always less than or equal to
the tank pressure.
TANK PRESSURE GAUGE (D) FIG.3
The tank pressure gauge indicates the reserve air pressure in the tank.
SAFETY PRESSURE RELEASE VALVE (E) FIG.4
If the pressure switch does not shut off the air compressor at its cutout pressure setting
and the air pressure keeps rising, the safety valve will protect against high pressure by
"popping out" above factory set pressure (slightly higher than the pressure switch
cut-out setting).
WARNING!: If the safety pressure release valve does not work properly, over
pressurization may occur, causing air tank rupture or an explosion. Daily pull the ring on
the safety valve to make sure that the safety valve operates freely. If the valve is stuck
or does not operate smoothly, it must be replaced with the same type of valve.
DRAIN VALVE (F) FIG.5
The drain valve is located at the base of the air tank and is used to drain condensation at the end of each use. The drain valve shown in Fig.5 is
in the closed position. Turn drain valve counterclockwise to drain condensation.
OPERATION CONTROLS
FIGURE 3
FIGURE 4
FIGURE 5
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