How To Use Your Unit - Craftsman PERMANENTLY LUBRICATED 2-STAGE TWIN V PORTABLE AIR COMPRESSOR 919.7255 Operator's Manual

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.
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.
Check Valve
Pressure Release Valve: The
pressure release valve located on the
side of the pressure switch, is
designed to automatically release
compressed air from the compressor
head and the outlet tube when the air
compressor reaches "cut-out"
pressure or is shut off. The pressure
release valve allows the motor to
restart freely. When the motor stops
running, air will be heard escaping
from this valve for a few seconds.
No air should be heard leaking when
the motor is running, or continuous
leaking after unit reaches "cut-out"
pressure.
D24445

How to Use Your Unit

How to Stop:
1. Set the On/Auto/Off lever to
"OFF".
Before Starting
Break-in instructions
following break-in instructions are
not closely followed.
This procedure is required before the
air compressor is put into service and
when the check valve or a complete
compressor pump has been
replaced.
1. Make sure the On/Auto/Off lever
is in the "OFF" position.
NOTE: If quick connect is installed,
pull coupler back until it clicks to
prevent air from escaping through the
quick connect.
2. Plug the power cord into the
correct branch circuit receptacle.
(Refer to Voltage and Circuit
Protection paragraph in the
Installation section of this
manual.)
3. Open the drain valve fully
(counter-clockwise) to permit air
to escape and prevent air
pressure build up in the air tank
during the break-in period.
NOTE: Always drain tank on a
washable surface or in a suitable
container to prevent damaging or
staining surfaces.
14- ENG
Pressure
Release
Valve
Serious damage
may result if the