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Operation
(Cont.)
bEFORE FIRST START-UP
bREAK-IN PROCEDURE
(Complete this procedure before using
compressor for the first time. Once
completed, it is not necessary to repeat.)
1. Turn regulator knob fully clockwise (to
the right) to open air flow and open
drain valve.
2. Turn ON/OFF switch to OFF position.
3. Plug in power cord.
4. Turn ON/OFF switch to ON position
and run compressor for 30 minutes.
5. Turn ON/OFF switch to OFF position.
6. Unplug power cord.
7. Close drain valve.
The compressor is now ready for use.
bEFORE EACH START-UP
OPERATING PROCEDURE
1. Turn regulator knob fully counter
clockwise (to the left) to close air flow.
2. Connect air hose to outlet of
regulator.
3. Turn On/Off Switch to OFF position.
4. Plug in power cord.
5. Turn On/Off Switch to ON position
and let compressor run until it reaches
automatic shutoff pressure.
6. Attach tire chuck or tool to end of hose.
7. Turn regulator knob clockwise (to
the right) to desired pressure of tool
being used.
ON/OFF CYCLING OF COMPRESSOR
In the ON position, the compressor
pumps air into the tank. When a shut-off
(preset "cut-out") pressure is reached,
the compressor automatically shuts off.
If the compressor is left in the ON
position and air is depleted from
the tank by use of a tire chuck, tool,
etc., the compressor will restart
automatically at its preset "cut-in"
pressure. When a tool is being used
continuously, the compressor will cycle
on and off automatically.
In the OFF position, the pressure switch
cannot function and the compressor
will not operate. Make sure switch
is in OFF position when connecting
or disconnecting power cord from
electrical outlet.
HM7000 Series, HM7100 Series, HU2000 Series, HU3500 Series
ASME SAFETY VALVE
the safety valve!
Check the safety valve by performing
the following steps:
1. Plug the compressor in and run until
shut off pressure is reached (see
Operating Procedure).
2. Wearing safety glasses, pull the ring
on the safety valve (see Figure 6) to
release pressure from compressor
tank. Use your other hand to deflect
fast-moving air from being directed
toward your face.
Figure 6
3. The safety valve should automatically
close when pressure in the tank has
been released. If the safety valve does
not allow air to be released when you
pull on the ring, or if it does not close
automatically, it MUST be replaced.
cannot be actuated or it leaks air after
ring is released.
PRESSURE GAUGES
Gauge attached to regulator indicates
air pressure going to hose (and any tool
attached to end of hose).
Gauge attached to pressure switch
indicates air pressure in tank.
Maintenance
power before making any repair.
1. Check compressor for any visible
problems, especially check air filter to
be sure it is clean.
2. Pull ring on safety valve and allow it to
snap back to normal position (Figure 6).
cannot be actuated or it leaks air after ring
is released.
3. Daily with compressor shut off:
Depressurize system prior to draining
tank. Drain moisture from tanks by
opening drain cocks on the side or
underneath end of tank.
NOTE: Drain cup should be emptied
regularly.
Do not remove or
attempt to adjust
Figure 7
plug with tank under pressure.
4. Turn power OFF and clean dust and dirt
NOTE: The air filter in the filter housing on
the side of the head must be checked and
cleaned periodically, more often if used
under very dusty conditions or when a
great deal of fog from spraying is allowed
to circulate near unit.
IMPORTANT: Unit should be located as far
from spraying area as hose will allow to
prevent over-spray from clogging filter.
DRAIN CUP VALVE OPERATION
Safety valve must
1. To open, slowly turn drain knob
be replaced if it
NOTE: Do not turn or force the knob
more than 2 to 4 turns, taking care not
to remove the knob.
Release all pressure
and disconnect
Safety valve must
be replaced if it
Figure 8 - Drain cup valve
2. To prevent overflow, monitor the cup
3. When the cup is partially full or
5
Do not remove drain
from motor, tank, air lines and pump
cooling fins.
counter-clockwise 2 to 4 turns until
water or air begins to escape into
the cup.
Turn counter-
clockwise to
drain
Turn clockwise
to close
at all times when draining.
draining is complete (whichever
happens first), shut off drain by
turning knob clockwise.
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