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4 - ENG 200-2929
Oilless air compressors are factory lubricated for life and do
not require any oil.
The basic components of the air compressor are the electric
motor, pump, pressure switch and tank (see Fig. 1).
The electric motor (see A) powers the pump. The electric
motor is equipped with an overload protector to help prevent
possible motor burnout. If the motor becomes overheated, the
overload protector will shut it down. Should this occur, allow the
motor to cool for 10-15 minutes, then press (never force) the
motor reset switch to restart the motor.
The pump (see B) compresses the air and discharges it into
the tank.
The tank (see C) stores the compressed air.
The pressure switch (see D ) shuts down the motor when
the tank reaches a pre-set “cut-out” pressure. As compressed
air is used and the tank drops to a pre-set “cut-in” pressure, the
switch restarts the motor automaticallly, and the pump resumes
compressing air.
OVERVIEW
BASIC AIR COMPRESSOR COMPONENTS
CFM:Cubic feet per minute; a unit of measure of air flow.
PSI: Pounds per square inch; a unit of measure of air pressure.
Cut-in pressure: While the motor is off, air tank pressure drops
as you continue to use your accessory. When the tank pressure
drops to factory set low pressure point, the motor will restart
automatically. The low pressure at which the motor automatically
restarts is called “cut-in” pressure.
Cut-out pressure: When an air compressor is turned on and
begins to run, air pressure in the air tank begins to build. It
builds to the factory set high pressure point before the motor
automatically shuts off, protecting your air tank from pressure
higher than its capacity. The high pressure at which the motor
shuts off is called “cut-out” pressure.
Well-ventilated: Means of providing fresh air in exchange for
dangerous exhaust or vapors.
Dedicated circuit: An electrical circuit reserved for the exclusive
use of the air compressor.
GLOSSARYOFTERMS
Fig. 1
B
A
C
D
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