Delta CP503 Know Your Air Compressor Description of Operation, Regulator, Check 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.

On/Auto/Off Switch: Turn this switch "ON/AUTO" to provide automatic power

to the pressure switch and "OFF" to	On/Auto/Off	Pressure
remove power at the end of each use.
		Switch
	Switch
Pressure Switch: The pressure switch
automatically starts the motor when the
air tank pressure drops below the factory
set "cut-in" pressure. It stops the motor
when the air tank pressure reaches the	Safety	Regulator
factory set "cut-out" pressure.
	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 pressure	Outlet	Tank
(slightly higher than the pressure switch
	Pressure Gauge	Pressure Gauge
"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 engineered 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.

Drain Valve

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 outlet.

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

A0820012- ENG