Delta OIL-FREE AIR COMPRESSOR CP503 - Manual (Page 12)

12- ENG A08200
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
remove power at the end of each use.
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
factory set "cut-out" pressure.
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
(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 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.
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.
Drain
Valve
Pressure
Switch
Tank
Pressure Gauge
Outlet
Pressure Gauge
Safety
Valve
On/Auto/Off
Switch
Regulator
Check Valve