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All Pumps
Install the air line accessories in the approximate order
shown in the Typical Installation drawing.
Install the
pump. An air line filter (C) removes harmful dirt and
bleed-type master
air
valve (A)
within
easy reach of the
moisture from your compressed air supply. A
pump
fast and shuts off the air supply to the motor. For
runaway valve ( 8 ) senses when the pump is running too
automatic air motor lubrication, install an air line oiler
(Dl close to the pump air inlet. (For manual lubrication,
see
MAINTENANCE, page 6.) Install an air regulator (E)
to control air to the motor and pump speed.
at least 112 in. (13 mm) ID in order to supply an ade-
Be sure the air supply hose is properly grounded, and is
quate volume of air to the motor.
fluid outlet to assist in relieving fluid pressure (not re-
On the fluid line, install a drain valve (H) close to the
quired with pumps having a Relax-A-Valve). Connect a
suitable, grounded fluid hose and spray gun or dispens-
ing valve to the pump's 314 in. npt outlet.
Groundina
Proper groinding is essential to maintain a safe system.
Read FIRE OR EXPLOSION HAZARD on
Dane
3~
then ground the pump and system as explained in that
section.
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OPERATION
The pump was tested in oil, and some oil was left in the
pump to protect it from corrosion. If the oil will con-
taminate the fluid you are pumping, flush
it
out.
pump speed. Always use the lowest pressure necessary
Use the air regulator (E) to control fluid pressure and
to get the desired results. Higher pressures cause
premature pump wear and spray tip wear, and usually
do not improve the spray pattern.
WARNING
To reduce the risk of overpressurizing your system
which could result in component rupture and
cause serious bodily injury, NEVER exceed 180 psi
(12.4 bar) Maximum Incoming Air Pressure to the
exceed its MAXIMUM WORKING PRESSURE of
pump. Higher air pressure will cause the pump to
1 8 0 0 psi (124 bar).
supplied to the motor, the pump starts when the gun or
In a direct supply system, with adequate air pressure
dispensing valve is opened, and stalls against pressure
when
it
is closed.
If the pump accelerates quickly or is running too fast,
stop
it
immediately. Check the fluid supply and refill
it
if
necessary. Prime the pump to remove all air from the
system, or flush the pump, relieve pressure, but leave
the system filled with mineral spirits or an oil-based sol-
vent to protect the pump from corrosion.
NOTE:
A pump runaway valve (8) can be installed
on the air line to automatically shut
off
the
pump if it starts to run too fast.
Always stop the pump at the bottom of its stroke to pre-
Shutdown and Care of the Pump
vent fluid from drying on the rod and damaging the
throat packings.
I
W
Always follow the Pressure Relief Procedure on
page 2 whenever you stop spraying and before
checking, or repairing any part of the system, to
reduce the risk of serious bodilv iniurv.
flush the system with a comDatible 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.
Using the Relax-A-Valve
fluid by circulation (except in inductor-type follow plate
If your pump has
a
Relax-A-Valve,
it
can be used to mix
installations), and
it
can be set to relieve fluid line
pressure each time the pump air pressure is relieved.
To circulate fluid, open the Relax-A-Valve by loosening
the locknut (119) and turning the T-handle screw (110)
counterclockwise as far as possible. Start the pump and
circulate the fluid as necessary.
Stop the pump
and
close the Relax-A-Valve or set it in the automatic posi-
tion. See Fig 2.
To set the automatic position, loosen the locknut (119)
and turn the T-handle screw (110) clockwise as far as
tighten the locknut. During normal operation, the fluid
possible. Back
off
the T-handle screw four turns and
pressure is relieved automatically each time
the air
pressure to the pump is relieved.
NOTE:
If
your installation includes an Evenflo
pressure regulator, air
to the pump
is
automatically relieved each time you close
the gun trigger, and the Relax-A-Valve, in
turn, relieves fluid pressure.
Without an Evenflo, the bleed-type master
air valve (A) should be used to relieve pump
air pressure.
Fig 2
306-726
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