Porter-Cable N078948 - Manual (Page 11)

11 - ENG
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.
Outlet
Tube
On(I)/Off(O) Switch
Safety
Valve
Tank
Pressure
Gauge
Outlet
Pressure
Gauge
Regulator
Quick
Connect
Check
Valve
DESCRIPTION OF OPERATION
Become familiar with these controls before operating the unit.
On(I)/Off(O) Switch: Place this switch in the On (I) position to provide automatic
power to the pressure switch and Off (O) to remove power at the end of each use.
Pressure Switch (not shown): 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).
Tank Pressure Gauge: The tank pressure gauge indicates the reserve air
pressure in the tank.
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.
Regulator: Controls the air pressure shown on the outlet pressure gauge. Turn
regulator knob clockwise to increase pressure and counterclockwise to decrease
pressure.
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.
Drain Valve: The drain valve is located at the base of the
Drain
Valve
air tank and is used to drain condensation at the end of
each use.