Air Compressor Pump (Included in compressor as-
sembly): To compress air, the piston moves up and down
in the cylinder. On the downstroke, air is drawn in through
the air 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, through the outlet tubes,
through the check valve and into the air tank. Working air
is not available until the compressor has raised the air tank
pressure above that required at the air outlet.
Cooling System (Included in compressor assembly):
This compressor contains an advanced design cooling
system. At the heart of this cooling system is an engi-
neered fan. It is perfectly normal for this fan to blow air
through the vent holes in large amounts. You know that the
cooling system is working when air is being expelled.
Air Intake Filter (Included in compressor assembly):
The unit requires no air filter due to the unique design of the
air intake system.
Check Valve (Not Shown): When the air compressor is
operating, the check valve is "open", allowing com-
pressed air to enter the air tank. When the air compressor
reaches "cut-out" pressure, the check valve "closes",
allowing air pressure to remain inside the air tank.
Pressure Switch: The pressure switch automatically
starts the motor when the air tank pressure drops below
the factory set "cut-in" pressure. It stops the motor when
ON/AUTO-OFF
SWITCH
PRESSURE
SWITCH
SAFETY VALVE
REGULATOR
AIR TANK
DRAIN VALVE
(NOT ILLUSTRATED)
DESCRIPTION OF OPERATION
TANK PRESSURE
GAUGE
the air tank pressure reaches the factory set "cut-out"
pressure.
Regulator: The air pressure coming from the air tank is
controlled by the regulator. Turn the regulator knob
clockwise to increase pressure and counter-clockwise to
decrease pressure. To avoid minor readjustment after
making a change in pressure setting, always approach the
desired pressure from a lower pressure. When reducing
from a higher to a lower setting, first reduce to some
pressure less than that desired, then bring up to the
desiredpressure. Depending on the air requirements of
each particular accessory, the outlet regulated air pres-
sure may have to be adjusted while operating the acces-
sory.
Outlet Pressure Gauge: The outlet pressure gauge
indicates the air pressure available at the outlet side of the
regulator. This pressure is controlled by the regulator and
is always less or equal to the tank pressure.
"Operating Procedures".
Tank Pressure Gauge: The tank pressure gauge indi-
cates the reserve air pressure in the tank.
Drain Valve (Not Shown): The drain valve is located at the
base of the air tank and is used to drain condensation at
the end of each use.
On/Auto-Off Switch: Turn this switch ON to provide
automatic power to the pressure switch and OFF to
remove power at the end of each use.
OUTLET PRESSURE GAUGE
7-ENG
See
COMPRESSOR
ASSEMBLY
CHECK VALVE
(Not Shown)
D23708