Makita MAC2200 Manuel Du Propriétaire page 6

DESCRIPTION OF OPERATION (cont'd)
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 tha
outlet tube when the air compressor reaches "cut-out" pres¬
sure 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 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.
Pressure Switch: The pressure switch automatically starts
the motor when the air tank pressure drops to the factory set
"cut-in" pressure. It stops the motor when the air tank
pressure reaches the factory set "cut-out" pressure.
Safety Valve: If the pressure switch does not shut off the air
compressor at its cut-out pressure setting, the safety valve will
protect against high pressure by "popping out" at its factory
set pressure (slightly higher than the pressure switch cut-out
setting).
Outlet Pressure Gauge: The outlet pressure gauge indicates
the air pressure available at the outlet side of the regulator
Jhis pressure is controlied by the regulator and is always iaCg
or equal to the tank pressure. See "Operating Procedures".
Tank Pressure Gauge: The tank pressure gauge indicates
the reserve air pressure in the tank.
Regulator: The air pressure coming from the air tank is
controlled by the regulator knob. Turn the knob clockwise to
increase pressure and counterclockwise to decrease pres¬
sure. To avoid minor readjustment after making a change in
pressure setting, always approach the desired pressure from
a lower pressure. When reducing from a higher to a lower
setting, first reduce to some pressure less than that desired,
then bring up to the desired pressure. Depending on the air
requirements of each particular accessory, the outlet regu¬
lated air pressure may have to be adjusted while you are
operating the accessory.
INSTALLATION AND BREAK-IN PROCEDURES-
Location of the Air Compressor
Locate the air compressor in a clean, dry and well ventilated
area. The air filter must be kept clear of obstructions which
could reduce air delivery of the air compressor. The air
compressor should be located at least 12" away from the wall
or other obstructions that will interfere with the flow of air. The
air compressor head and shroud are designed to allow for
proper cooling. If humidity is high, an air filter can be installed
on the air outlet adapter to remove excessive moisture. Follow
the instructions packaged with the air filter for proper installa¬
tion.
Lubrication and Oil
This unit needs no lubrication or oiling.
Extension Cords
To avoid voltage drop, power loss, and overheating of the
motor, use extra air hose instead of an extension cord.
Low voltage can cause damage to the motor.
If an extension cord must be used:
• use only a 3-wire extension cord that has a 3-blade ground¬
ing plug and a 3-slot receptacle that will accept the plug on
the air compressor.
• make sure the extension cord is in good condition.
• the extension cord should be no longer than 50 feet.
• the minimum wire size is 12 gauge (AWG). (Wire size
increases as gauge number decreases. 10 AWG and 8 AWG
may also be used. DO NOT USE 14 AWG or 16 AWG.)
Piping
gmmg
Plastic or PVC pipe is not designed for use with
compressed air. Regardless of its indicated
pressure rating, plastic pipe can burst from air
pressure. Use only metal pipe for air distribu¬
tion lines.
Piping (cont'd)
If a pipe line is necessary, use pipe that is the same size as the
air tank outlet. Piping that is too small will restrict the flow of
air. If piping is over 100 feet long, use the next larger size. Bury
underground lines below the frost line and avoid pockets
where condensation can gather and freeze. Apply pressure
before underground lines are covered to make sure all pipe
joints are free of leaks.
GROUNDING INSTRUCTION
AWARNING
RISK OF ELECTRICAL SHOCK! In the event of
a short circuit, grounding reduces the risk of
shock by providing an escape wire for the
electric current. This air compressor must be
properly grounded.
The air compressor is equipped with a cord having a grounding
wire with an appropriate grounding plug. The plug must be
used with an outlet that has been installed and grounded in
accordance with all local codes and ordinances. The outlet
must have the same configuration as the plug. See illustration
DO NOT USE AN ADAPTER.
Inspect the plug and cord before each use. Do not use if
there are signs of damage.
ADANGER
IMPROPER GROUNDING CAN RESULT IN
ELECTRICAL SHOCK.
Do not modify the plug that has been provided. If it does
not fit the available outlet, the correct outlet should be
installed by a qualified electrician.
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continued
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