Graco 15:1 President [6/24] Installation
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Graco 15:1 President [6/24] Installation

Graco 15:1 President [6/24] Installation
6
306936
Installation
System Accessories
WARNING
A bleed-type master air valve (B) and a fluid drain
valve (J) are required in your system. These acces-
sories help reduce the risk of serious injury includ-
ing skin injection, splashing in the eyes or on the
skin, and injury from moving parts if you are adjust-
ing or repairing the pump.
The bleed-type master air valve relieves air trapped
between this valve and the pump after the air is
shut off. Trapped air can cause the pump to cycle
unexpectedly. Locate the valve close to the pump.
Order Part No. 113269.
The fluid drain valve assists in relieving fluid pres-
sure in the displacement pump, hose, and gun.
Triggering the gun to relieve pressure may not be
sufficient. Order Part No. 210657.
Air and Fluid Hoses
Be sure all air and fluid hoses are properly sized and
pressure-rated for your system. Use only electrically
conductive air and fluid hoses. Use a 1/2 in. (13 mm)
I.D. (minimum) air hose (A) to supply air to the pump.
Connect a fluid hose (P) to the pump’s 1/2 npt(f) fluid
outlet. Connect a fluid suction hose and tube (S) to the
pump’s 3/4 npt(m) fluid intake.
Air Line Accessories
Install the following accessories in the order shown in
Fig. 2, using adapters as necessary:
D A bleed-type master air valve (B) is required in
your system to relieve air trapped between it and
the air motor when the valve is closed (see the
WARNING above). Be sure the bleed valve is
easily accessible from the pump, and is located
downstream from the air regulator (C).
D An air regulator (C) controls pump speed and
outlet pressure by adjusting the air pressure to the
pump. Locate the regulator close to the pump, but
upstream from the bleed-type master air valve (B).
D An air line lubricator (D) provides automatic air
motor lubrication.
D A pump runaway valve (E) shuts off the pump if it
starts running too fast. A pump which runs too fast
can seriously damage itself.
D An air line filter (F) removes harmful dirt and
moisture from the compressed air supply. Also,
install a moisture trap and drain valve (H) to help
remove moisture and contaminants from the com-
pressed air supply. Install these accessories on the
pump air supply line and the air supply line to an
air-assisted airless spray gun.
D A second bleed-type air valve (G) isolates the air
line accessories for servicing. Locate upstream
from all other air line accessories.
D A gun air regulator (T) adjusts the air pressure to
the air-assisted airless spray gun (R).
Fluid Line Accessories
Install the following accessories in the positions shown
in Fig. 2, using adapters as necessary:
D A fluid drain valve (J) is required in your system
to relieve fluid pressure in the hose and gun (see
the WARNING at left). Install the drain valve point-
ing down, but so the handle points up when
opened.
D A fluid filter (K) filters harmful particles from the
fluid.
D A fluid shutoff valve (L) shuts off the fluid flow to
the gun.
D A fluid pressure regulator (M) and gauge (N)
allows more precise control of the fluid pressure at
the gun.
D A spray gun (R) dispenses the fluid. The gun
shown in Fig. 2 is an air-assisted airless spray gun.

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