Craftsman 919.17673 - Manual (Page 6)

ACCESSORIES FOR USE WITH SEARS AIR COMPRESSORS
The following accessories are available through the current general sales catalog or at full-line Sears stores.
•SPRAY GUNS
•BLOW GUNS
•AIR CAULKING GUNS
•AIR POWERED WASHER GUNS
•SAND BLASTERS
•AIR BRUSHES
•AIR LINE FILTERS
•TIRE AIR CHUCKS
•PAINT TANKS
•AIR TANKS
•INFLATOR KITS
•QUICK CONNECTOR SETS
(various sizes)
•VISCOSIMETER
•AIR PRESSURE REGULATORS
•OIL FOG LUBRICATORS
•AIR TOOLS:
Sanders
Drills
Impact wrenches
Hammers
•AIR HOSE:
1/4", 5/16" OR 3/8" ID.
in various lengths.
GENERAL INFORMATION
You have purchased an air compressor unit consisting of
a
2
cylinder, single stage air compressor pump, an air
tank, air hose, wheels, handle, air chuck and associated
controls.
Your air compressor can be used for operating paint
spray guns, air tools, caulking guns, grease guns, air
brushes, sandblasters, power washers, inflating tires
and plastic toys, spraying weed killers, insecticides, etc.
An air line filter is usually required for removal of mois­
ture and oil vapor in compressed air when a paint spray
gun is used.
An in-line lubricator is usually required for air tools to
prolong tool life.
Separate air transformers which combine the functions
of air regulation and/or moisture and dirt removal should
be used where applicable.
These accessories can be purchased from most Sears
stores or through the Sears General catalog or Power
Tool catalog.
DESCRIPTION OF OPERATION
TANK
PRESSURE GAUGE
PRESSURE
SWITCH
AIR COMPRESSOR
PUMP
ON/OFF
regulator switch
OUTLET PRESSURE
GAUGE
SAFETY.^—-
VALVE ......
CHECK
VALVE
Air Compressor Pump: To compress air, the pistons
move up and down in the cylinders. On the downstroke,
air is drawn in through the air intake filter and then
through the air intake valves. The exhaust valve remains
closed. On the upstroke of the piston, air is compressed.
The intake valves close and compressed air is forced
out through the exhaust valve, through the outlet tube,
through the check valve and into the air tank. Working air
is not available until the compressor has raised 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.
Pressure Release Valve: The pressure release valve
located on the side of the pressure switch, is designed to
automatically release compressed air from the com­
pressor head and the outlet tube when the air compres­
sor reaches “cut-out" pressure or is shut off. If the air is
not released, the motor will try to start, but will be unable
to. The pressure release valve allows the motor to re­
start freely. When the motor stops running, air will be
heard escaping from the valve for a few seconds. No air
should be heard leaking from the valve when the motor is
running.
Safety Valve: If the pressure switch does not shut off the
air compressor at or near its cut-out pressure setting, the
safety valve will protect against high pressure by “pop­
ping out” at its factory-set pressure (slightly higher than
the pressure switch cut-out setting).