5
307-928
INSTALLATION
Be sure that all operators read and understand this entire
manual and the separate manuals supplied with compo-
nents and accessories before using this equipment.
Reference numbers and letters in parentheses refer to
the Typical Installation drawing, Figs. 1-5, and the parts
drawings and lists on pages 13-18.
Accessories mentioned are available from your Graco
distributor (see page 19). If you supply your own acces-
sories, be sure they are adequately sized to meet your
system’s requirements.
The Typical Installation above is only an example. For as-
sistance in designing a system to meet your particular
needs, contact your Graco representative or Graco
Technical Assistance (see back page).
SYSTEM ACCESSORIES
Install an air line filter (A) in the main air line (B), to re-
move harmful dirt and moisture from the compressed air
supply. To provide automatic lubrication of the air motor,
install an air line lubricator (C) downstream from the
bleed-type master air valve (45). Install a second bleed
valve (F) in the main air line, to isolate the accessories for
servicing.
WARNING
The bleed-type master air valve (45) and the fluid
drain valve (10) are supplied with your pump, to
help reduce the risk of serious bodily injury includ-
ing fluid injection, splashing in the eyes or on the
skin, or 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. The valve is located down-
stream from the air regulator.
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.
HOSE AND GUN CONNECTIONS
Refer to the Typical Installation drawing on page 4. As-
semble the suction hose (29) and suction tube (21) to the
pump fluid intake.
Connect one end of the fluid hose (D) to the filter outlet
nipple (22) and the other to the fluid inlet of the gun (E).
DO NOT install the spray tip in the gun yet. To use a sec-
ond gun with the sprayer, refer to pages 10 and 11.
Close the bleed-type master air valve (45) and the air
regulator (28). Connect the main air line (B) to the 1/2
npt(f) air regulator inlet.
GROUNDING
WARNING
Before operating the pump, ground the system as
explained under FIRE OR EXPLOSION HAZARD
and Grounding on page 3.
