Craftsman 921.16638 Air Compressor User Manual


 
Parts & Features
See figures below for reference.
f
Regulator Gauge
indicates the outgoing air pressure to the tool and is
controlled by the regulator.
Chock Valve
When the pump is not in operation the valve closes to
retain air pressure inside the tank. An internal
component.
Tank Pressure Gauge
indicates the reserve air pressure in the tank.
Outlet Tube
Tank Safety Valve
Used to allow excess tank pressure to escape into
the atmosphere. This valve should only open when
the tank pressure is above the maximum rated
pressure.
Pressure Switch
This controls the power to the motor and also the
cutdn/cut-out pressure settings. This switch serves as
the Auto-On/Off positions for the unit.
Pressure Belbf Valve
The pressure relief valve located on the side of the
pressure switch, is designed to automatically
release compressed air when the air compressor
reaches cut-out pressure. The released air should
only escape momentarily and the valve should then
close,
Pressure Relief Tube
Regulator
The air pressure coming from the air tank is controlled
by the regulator, To increase the pressure turn the
knob clockwise and to decrease the pressure turn the
knob counterclockwise,
Quick Connect
Offers a quick release feature for
attaching and removing the air hose.
J
J
I
I Tank Drain Valve e!
Used to drain condensation from the air tank.
Located at bottom of tank.
Air Intake Fitter
Provides clean air to the pump and must always be
kept free of debris. Check on a daily basis or before
each use.