308200
5
Installation
General Information
NOTE: Reference numbers and letters in parentheses
in the text refer to the callouts in the figures and the
parts drawings.
NOTE: If you supply your own accessories, be sure
they are adequately sized and pressure–rated to meet
the system’s requirements.
Fig. 2 is only a guide for selecting and installing sys-
tem components and accessories. Contact your Graco
distributor for assistance in designing a system to suit
your particular needs.
System Accessories
WARNING
Two accessories are required in your system: a
bleed–type master air valve (J) and a fluid drain
valve (N). These accessories help reduce the risk
of serious bodily injury including fluid injection,
splashing in the eyes or on the skin, and injury from
moving parts if you are adjusting 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.
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.
Air and Fluid Hoses
Be sure all air and fluid hoses are properly sized and
pressure-rated for your system. Use only grounded air
and fluid hoses. Fluid hoses must have a braided
stainless steel cover (or have spring guards on both
ends).
Mounting Accessories
Mount the pump (A) to suit the type of installation
planned. The pump dimensions and mounting hole
layouts are shown on pages 28 and 29.
The Typical Installation on page 7 shows the pump
(A) mounted on a pneumatic elevator cart (B). The
pump may also be mounted on a 19 liter (5 gal.) pail
ram. In either case, it is used with a wiper plate (C).
Refer to the separate manuals for the cart, ram, and
wiper plate for further information.
Kits 223881 and 224829 are available to mount the
pump on a 200 liter (55 gallon) ram. Refer to the
separate manuals included with the kits for further
information.
Air Line Accessories
Install the following accessories as shown in Fig. 2,
using adapters as necessary:
D
A pump runaway valve (G) senses when the
pump is running too fast and automatically shuts off
the air to the motor. A pump which runs too fast can
be seriously damaged. Install closest to the pump
air inlet.
D
An air line lubricator (H) provides automatic air
motor lubrication.
D
A bleed-type master air valve (J) is required in
your system to relieve air trapped between it and
the air motor when the valve is closed (see the
WARNING at left). Be sure the bleed valve is easily
accessible from the pump, and is located down-
stream from the air regulator.
D
An air regulator (K) 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.
D
An air line filter (L) removes harmful dirt and
moisture from the compressed air supply.
D
A second bleed-type air valve (M) isolates the air
line accessories for servicing. Locate upstream
from all other air line accessories.
D
An air line quick disconnect coupler (F) is
required for pumps mounted on the pneumatic
elevator cart. The female coupler attaches to the
end of the air hose (D), and the male coupler
screws into the air manifold (E). See the separate
cart manual for further information.
