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OPERATION
The pump was tested in oil, and some oil waa left in the
pump to protect it from corrosion. If the oil will con-
taminate the fluid you are pumping, flush
it
out with a
compatible solvent.
trol valve (78) are closed. Turn on the main air supply
Be
sure the pump air regulator (21) and agitator air con-
and close the bleed-type master air valve (A). Slowly
open the agitator valve (78).
U s e
the lowest speed
necessary to thoroughly agitate the paint, without foam-
ing
it.
Foaming wastes paint and may cause poor pump
performance. Lower the agitator speed so it's just
enough to keep the paintpanicles suspended while cir-
culating the paint.
Slowly open the pump air regulator (21) until the pump
is running at about
50
strokes per minute. Turn the
restrictor valve (32) clockwise until the fluid pressure at
the pump is about three times the fluid pressure needed
a t the last outlet of the circulating system. For example,
if 12 psi (0.8 bar) is needed at the last spray gun, adjust
the outlet pressure to 36 psi (2.4 bar). Adjust the pump
air regulator while adjusting the fluid pressure to main-
tain a constant
50
strokes Der minute. When the fluid
valve locknut
( 3 2 4 .
pressure adjustment is complete, tighten the restrictor
WARNING
To reduce the risk of overpressurizing your
system, which could result in component rupture
and cause serious bodily injury, NEVER exceed 180
the
pump.
psi (12.4 bar) Maximum Incoming Air Pressure to
1
In a circulating system. the pump runs continuously and
slows down or speeds up as supply demands, until the
air supply is shut off.
supplied to the motor, the pump starts when the gun is
In a direct supply system, with adequate air pressure
opened, and stalls against pressure when
it
is closed.
If the pump accelerates quickly or
is
running too fast,
stop i t immediately. Check the fluid supply and refill
it
if
system, or flush the pump, relieve pressure. See Corro-
necessary. Prime the pump to remove all air from the
d o n Protection. to the right.
MAINTENANCE
Always stop the pump at the
bottom
of its stroke to pre-
Shutdown and Care of the Pump
throat packings.
vent fluid from drying on the rod and damaging the
page
5
whenever you stop spraying and before
checking or repairing any part of the system, to
reduce the risk of serious bodily injury.
flush the system with a compatible solvent as often as
If you are pumping fluid which dries, hardens or sets up,
necessary to prevent a build up of dried fluid in the
pump or hoses.
To reduce the risk of injury from splashing or static
flushing
sparking, always hold a metal part of the spray gun firm-
ly to the side of a grounded metal pail, and use the
lowest possible fluid pressure when flushing.
Corroalon Protectlon
CAUTION
Water, or even moist air, can cause your pump to
corrode. To help prevent corrosion, NEVER leave
the pump filled with water or air. After normal
flushing, flush the pump again with mineral spirits
or oil-based solvent, relieve pressure, and leave the
mineral spirits in the pump. Be sure to follow all
steps of the Pressure Relief Procedure on
page
5.
4
306-560
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