DeVillbiss Air Power Company D23757 manual Know Your Air Compressor Description of Operation

Drain Valve

OPERATION

Know Your Air Compressor

READ THIS OWNER’S MANUAL AND SAFETY RULES BEFORE OPERATING YOUR UNIT. Compare the illustrations with your unit to familiarize yourself with the location of various controls and adjustments. Save this manual for future reference.

Description of Operation

Become familiar with these controls before operating the unit.

These photographs are for reference only and do not represent a specific model

On/Auto/Off Switch: Turn this switch ON	Pressure	Tank	Outlet
to provide automatic power to the pressure		Pressure	Pressure
	Switch
switch and OFF to remove power at the		Gauge	Gauge
end of each use.
Pressure Switch: The pressure switch
automatically starts the motor when the air
tank pressure drops below the factory set			Regulator
“cut-in” pressure. It stops the motor when
the air tank pressure reaches the factory set	On/Auto/Off
“cut-out” pressure.
	Switch	Safety Valve

Safety Valve: If the pressure switch does

not shut off the air compressor at its “cut-out” pressure setting, the safety valve will protect against high pressure by “popping out” at its factory set pres- sure (slightly higher than the pressure switch “cut-out” setting).

Outlet Pressure 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.

Tank Pressure Gauge: The tank pressure gauge indicates the reserve air pressure in the tank.

Regulator: Controls the air pressure shown on the outlet pressure gauge. Pull the knob out and turn clockwise to increase pressure and counterclockwise to decrease pressure. When the desired pressure is reached

push knob in to lock in place.

Drain Valve: The drain valve is located at the base of the air tank and is used to drain condensation at the end of each use.

Cooling System (not shown): This compressor contains an

advanced design cooling system. At the heart of this cooling system is an engi- neered 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 expelled.

Air Compressor Pump (not shown): Compresses air into the air tank. Working air is not available until the compressor has raised the air tank pressure above that required at the air out- let.

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.

Check

Valve

Check Valve

D23757 12- ENG