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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 air intake valves. The exhaust
valves remain closed. On the upstroke of the piston, air
is compressed.
The intake valves close and com-
pressed air is forced out through the exhaust valves,
through the outlet tube, 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.
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"cut-out"
pressure, the checkvalve"closes",
allowing air pressure
to remain inside the air tank.
Pressure Release Valve:
(if equipped)
The pressure
release valve located on the side of the pressure switch,
is designed to automatically release compressed air from
the compressor
head and the outlet tube when the air
compressor reaches "cut-out"
pressure or is shut off. If
the air is not released, the motor will not be able to start.
The pressure release valve allows the motor to restart
freely. When the motor stops running, air will be heard
escaping from the valve for a few seconds. No air should
be leaking when the motor is running.
Pressure Switch:
The pressure switch automatically
starts the motor when the air tank pressure drops below
the factoryset"cut-in"
pressure. It stops the motor when
the air tank pressure reaches the factory set "cut-out"
pressure.
Safety Valve: Irthe pressure switch does not shut offthe
air compressor at its cut-out pressure setting, the safety
valve will protect the tank against high pressure
by
"popping
out" at its factory set pressure (slightly higher
than the pressure switch cut-out setting).
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
so me pressure less than that desired, then bring up to the
desired pressure.
Depending onthe airrequirements
of
each particular accessory, the outlet regulated air pres-
sure may have to be adjusted
while operating
the
accessory.
Outlet Pressure Gauge;
The outlet pressure gauge
indicates the air pressure available at the outlet side of
the regulator. This pressure is controlled bythe regulator
and is always less or equal to the tank pressure.
See
"Operating Procedures".
Tank Pressure Gauge: The tank pressure gauge indi-
cates the reserve air pressure in the tank.
Cooling System:
This compressor
contains an ad-
vanced design cooling system. Atthe heart of this cooling
system is an engineered fan. It isperfectly 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.
• a 9/16" socket or open end wrench for attaching the
wheels
• a 3/8" open end wrench or socket to tighten handle
screws
7--
ENG
o2os17 R_v.o 3f2f_
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