Porter Cable PXCMLC1683066 Manuel D'instructions page 8

Refer to Fig. 3.
PRESSURE switch (see A)
This switch turns on the compressor. It is operated manually, but when in the
ON position, it allows the compressor to start up or shut down automatically,
without warning, upon air demand. ALWAYS set this switch to OFF when the
compressor is not being used, and before unplugging the compressor.
Pressure Relief Valve (see B)
If the pressure switch does not shut down the motor when pressure reaches
the preset level, this valve will pop open automatically to prevent over
pressurization. To operate manually, pull the ring on the valve to relieve air
pressure in the tank.
Tank Pressure Gauge (see C)
This gauge measures the pressure level of the air stored in the tank. It is not
adjustable by the operator, and does not indicate line pressure.
Air Pressure Regulator (see D)
This air pressure regulator enables you to adjust line pressure to the tool you are
using.
WARNING

Regulated pressure gauge (see E)
This gauge measures the regulated outlet pressure.
Air line outlet (see F)
Connect 1/4" NPT air hose to this outlet.
COMPRESSOR CONTROLS
Never exceed the maximum working pressure of the tool.
Turn the knob clockwise to increase pressure, and
counterclockwise to decrease pressure.
8- ENG
Fig. 3