Industrial Air IV5076055, Operator'S Manual

4 - ENG

200-2927

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 

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 automatically, and the pump resumes 

compressing air.

OVERVIEW 

BASIC AIR COMPRESSOR COMPONENTS

IMPORTANT SAFETY INSTRUCTIONS

CAUTION:

Drain the moisture from the tank on a daily basis. A clean, dry tank will help prevent corrosion.
Pull the tank safety valve ring daily to ensure that the valve is functioning properly, and to clear the valve of any possible obstructions.

To provide proper ventilation for cooling, the compressor must be kept a minimum of 12 inches (31 cm) from the nearest wall, in a 

well–ventilated area. Restricting any of the compressor ventilation openings will cause overheating and could cause fire, never place 

objects against or on top of compressor.
Fasten the compressor down securely if transporting is necessary. Pressure must be released from the tank before transporting.
Protect the air hose and interconnect cord from damage and puncture. Inspect them weekly for weak or worn spots, and replace if  

necessary.
Risk of electric shock or injury - Use indoors only.
On oil-lubed compressors, oil can leak or spill and could result in fire or breathing hazard. Oil leaks will damage paint, carpet or other 

surfaces in vehicles or trailers. Always place the compressor on a protective mat when transporting to protect against damage to 

vehicle from leaks. Remove compressor from vehicle immediately upon arrival at your destination.
To prevent damage to tank and compressor on stationary models, the tank must be shimmed so the pump base is level within 1/8”  to 

distribute oil properly. All feet must be supported, shimming where necessary, prior to attaching to the floor. Fasten all feet to floor. We 

also recommend the use of vibration pads (094-0137) under tank feet.

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.

GLOSSARY OF TERMS

Fig. 1

B

D

C

A