10
Stationary Electric Air Compressor Manual
AIR TANK DRAIN VALVE: The drain valve is used to remove moisture from the air
tank(s) after the air compressor is shut off. NEVER attempt to open the drain valve
when more than 10 PSI of air pressure is in the air tank! To open the drain valve, turn
the knob counterclockwise.
OIL SIGHT GLASS: The Oil Sight Glass displays the oil level in the pump. The oil
level should be at the center of the Oil Sight Glass. If low, add SAE 30W non-de-
tergent oil.
OIL FILL PORT/VENT: Pour oil into the Oil Fill Port/Vent when required.
AIR INTAKE FILTER:
This filter is designed to clean air coming into the pump. To ensure the
pump continually receives a clean, cool, dry air supply this filter must always be clean and ven
-
tilation opening free from obstructions. Replace filter element when necessary.
AIR COMPRESSOR PUMP: To compress air, the pistons move up and down in the cylinders.
On the downstroke, air is drawn in through the air intake valves while the exhaust valves remain closed. On
the upstroke, air is compressed, the intake valves close and compressed air is forced out through the ex-
haust valves, into the discharge line, through the check valve and/or the pilot valve and into the air tank.
MOTOR/PRESSURE SWITCH: This switch is used to start or stop the air compres-
sor. The switch will provide automatic power to the motor to start when the air tank
pressure is below the factory set "cut-in" pressure. The pressure switch stops the
motor when the air tank pressure reaches the factory set "cut-out" pressure. For
safety purposes, this switch also has a pressure release valve located on the side of
the switch designed to automatically release compressed air from the air compressor
pump head and its discharge line when the air compressor reaches "cut-out" pres-
sure or is shut off. This allows the motor to restart freely.
SAFETY RELIEF VALVE: This valve is designed to prevent system failures by relieving
pressure from the system when the compressed air reaches a predetermined level. The
valve is preset by the manufacturer and must not be modified in any way. To verify the
valve is working properly, pull on the ring. Air pressure should escape. When the ring is
released, it will reseat.
AIR TANK PRESSURE GAUGE: The air tank pressure gauge indicates the reserve air pres-
sure in the air tank.
AFTER COOLER: Removes up to 65% of the moisture from discharged compressor air, it
also lowers the gas temperature within 20 degrees of ambient.
EXPLODED VIEW & EXPLANATION OF AIR COMPRESSOR FEATURES
