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DESCRIPTION
OF OPERATION
Air Compressor
Pump: To compress air, the piston moves
up and clown 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 com-
pressed.
The intake valves close and compressed
air is
forced
out through
the exhaust valves, through
the outlet
tube, through the check valve and into the air tank.
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 check valve "closes",
allowing air pressure to
remain inside the air tank.
Pressure
Switch:
The pressure switch is fitted with a small
lever. It is labeled "Auto/O"
for automatic
run or off. In the
"O" position,
the motor will not run. In the "Auto" position,
it automatically
starts the motor when the air tank pressure
drops below the factory set "cut-in"
pressure.
It stops the
motor when the air tank pressure
reaches the factory set
"cut-out"
pressure.
Pressure
Release Valve:
The pressure release valve Io+
cated
on the side of the pressure
switch
is designed
to
automatically
release compressed
air trapped
within the
compressor
head and outlet tube. This short release of air
wilt occur when the air compressor
reaches "cut-out"
pres-
sure or the unit is shut off. If the air is not released, the
motor will not be able to start when next required.
Flow Valve:
The flow valve allows air to flow from the head
as the motor
is getting
"up to speed".
Once the motor
reaches normal operating
speed, the flow valve closes and
the pump begins to compress
air, thus requiring
less amp
draw on initial start.
Safety Valve:
If the pressure switch does not shut off the
air compressor
at its cut-out
pressure
setting, the safety
valve will protect
the tank against high pressure by "pop-
ping 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. The regulator control knob is a
vibration
proof design.
Lift the regulator
knob
to engage
and depress the knob to lock. Turn the regulator knob clock-
wise to increase
pressure
and counter-clockwise
to de-
crease 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 desired pressure.
Depending
on the air requirements
of each
)articular ac-
cessory, the outlet regulated
air pressure ma, have to be
adjusted
while operating
the accessory.
Regulator
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
than or equal to the tank pressure. See "Operating
Proce-
dures".
Tank Pressure Gauge: The tank pressure gauge indicates
the reserve air pressure in the tank.
Cooling
System:
This compressor
contains an advanced
design cooling
system.
At the heart of this cooling
system
is an engineered
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 ex-
pelled.
Drain Valve:
This valve is located at the bottom
of the
tank. To drain accumulated
moisture from the tank, pull on
the safety valve until tank pressure is 15 PSI. Unscrew the
drain valve and allow the water to drain.
Tools Needed for Assembly
• a 9/16" socket and an open end wrench for attaching
the wheels
• a 3/8" open end wrench or socket to tighten handle
screws
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