Description Of Operation; Tools Needed For Assembly - Sears CRAFTSMAN Manuel D'instructions

Air Compressor Pump: To compress air, the piston
moves up and down in the cylinder. On the downstroke,
air is drawn in through the air intake valves. The exhaust
valves remain closed. On the upstroke of the piston, air
is compressed. The intake valves close and compressed
air is forced out through the exhaust valves, through the
outlet tube, through the check valve and into the air tank.
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 pres-
sure to remain inside the air tank.
Pressure Switch: The pressure switch is fitted with a
small lever. It is labeled "Auto/O" for automatic run or
off. In the "O" position, the motor will not run. In the "Auto"
position, it automatically starts the motor when the air
tank pressure drops below the factory set "cut-in" pres-
sure. It stops the motor when the air tank pressure reaches
the factory set "cut-out" pressure.
Pressure Release Valve: The pressure release valve lo-
cated on the side of the pressure switch is designed to
automatically release compressed air trapped within the
compressor head and outlet tube. This short release of
air will occur when the air compressor reaches "cut-out"
pressure or the unit is shut off. If the air is not released,
the motor will not be able to start when next required.
Safety Valve: If the pressure switch does not shut off the
air compressor at its cut-out pressure setting, the safety
valve will protect the tank against high pressure by "pop-
ping out" at its factory set pressure (slightly higher than
the pressure switch cut-out setting).
• a 9/16" socket and an open end wrench for
removing shipping boards.

DESCRIPTION OF OPERATION

TOOLS NEEDED FOR ASSEMBLY

7 — ENG
Air Compressor Pump: To compress air, the piston
moves up and down in the cylinder. On the downstroke,
air is drawn in through the air intake valves. The exhaust
valves remain closed. On the upstroke of the piston, air
is compressed. The intake valves close and compressed
air is forced out through the exhaust valves, through the
outlet tube, through the check valve and into the air tank.
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 pres-
sure to remain inside the air tank.
Pressure Switch: The pressure switch is fitted with a
small lever. It is labeled "Auto/O" for automatic run or
off. In the "O" position, the motor will not run. In the "Auto"
position, it automatically starts the motor when the air
tank pressure drops below the factory set "cut-in" pres-
sure. It stops the motor when the air tank pressure reaches
the factory set "cut-out" pressure.
Pressure Release Valve: The pressure release valve lo-
cated on the side of the pressure switch is designed to
automatically release compressed air trapped within the
compressor head and outlet tube. This short release of
air will occur when the air compressor reaches "cut-out"
pressure or the unit is shut off. If the air is not released,
the motor will not be able to start when next required.
Safety Valve: If the pressure switch does not shut off the
air compressor at its cut-out pressure setting, the safety
valve will protect the tank against high pressure by "pop-
ping out" at its factory set pressure (slightly higher than
the pressure switch cut-out setting).
• a 3/8" open end wrench or socket to tighten handle
screws.
D21794