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BASIC AIR COMPRESSOR COMPONENTS
The basic components of the air compressor are the gasoline
engine, pump, tank(s) and unloader.
The gasoline engine (see A) powers the pump.
The pump (see B) compresses the air and discharges it into
the tank. As the piston in the pump cylinder moves downward, air
enters the cylinder through the filter and air intake valves at atmo-
spheric pressure. As the piston moves upward, it compresses the
air and discharges it into the tank through a check valve.
The tank (see C) store the compressed air. A check valve at
the tank inlet prevents the compressed air in the tank from flowing
back into the pump.
When the air pressure in the tank reaches the factory–set
limit, the unloader (see D) relieves air pressure in the pump and
transfer tubes and switches the engine to idle. As compressed air
is used and the pressure level in the tank drops to a pre–set level,
the unloader stops relieving pressure in the pump and transfer
tube and switches the engine to full speed.
ASSEMBLING THE COMPRESSOR
1.
Unpack the air compressor. Inspect the unit for damage. If
the unit has been damaged in transit, contact the carrier
and complete a damage claim. Do this immediately
because there are time limitations to damage claims.
The carton should contain:
•
Air compressor
•
Operator/parts manual
•
Engine manual
2.
Check the compressor's serial label to ensure that you
have received the model ordered, and that it has the
required pressure rating for its intended use.
3.
Locate the compressor according to the following
guidelines:
Tank Pressure Relief Valve (see A)
If the unloader valve (see B) does not open when pressure
reaches the preset level, this valve will pop open automatically to
prevent overpressurization. To operate manually, pull the ring on
the valve to relieve air pressure in the tank.
Tank Pressure Gauge (see B)
This gauge measures the pressure level of the air stored
in the tank. It is not adjustable by the operator, and does not
indicate line pressure.
Air Pressure Regulator (see C)
This air pressure regulator enables you to adjust line
pressure to the tool you are using.
WARNING:
Never exceed the maximum working
pressure of the tool.
Turn the knob clockwise to increase pressure, and
counterclockwise to decrease pressure.
OVERVIEW
ASSEMBLY
WARNING:
ventilated area.
a.
b.
c.
d.
4.
Connect an air hose (not included) to the compressor.
COMPRESSOR CONTROLS
Regulated pressure gauge (see D)
This gauge measures the regulated outlet pressure.
4 - ENG
Always operate the compressor in a well
Position the compressor as close as possible to the
place where the air will be used.
The compressor must be at least 12 inches (31 cm)
from any wall or obstruction, in a clean, well–ventilated
area, to ensure sufficient air flow and cooling.
In cold climates, store portable compressors in a
heated building when not in use, to reduce problems
with engine starting, and freezing of water
condensation.
Place the compressor on the floor or a hard, level
surface.
B
A
Fig. 1
D
Fig. 2
C
200-3155
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