Operation Basics; Isocyanate Hazard; Keep A And B Components Separate; Grounding - Graco GX-7A Operation, Parts, Service, Repair

Operation Basics

To prevent accidental gun operation, always
disconnect air supply before servicing gun or
anytime gun is not in use.

Isocyanate Hazard

Spraying materials containing isocyanates
creates potentially harmful mists, vapors,
and atomized particulates.
Read material manufacturer's warnings and
material MSDS to know specific hazards and
precautions related to isocyanates.
Prevent inhalation of isocyanate mists,
vapors, and atomized particulates by provid-
ing sufficient ventilation in the work area. If
sufficient ventilation is not available, a sup-
plied-air respirator is required for everyone in
the work area.
To prevent contact with isocyanates, appro-
priate personal protective equipment, includ-
ing chemically impermeable gloves, boots,
aprons, and goggles, is also required for
everyone in the work area.
Keep A and B Components
Separate
CAUTION
To prevent cross-contamination of the gun's
wetted parts, do not interchange A compo-
nent (isocyanate) and B component (resin)
parts. The gun is shipped with the A side on
the left.
311321N

Grounding

Check your local electrical code and propor-
tioner manual for detailed grounding instruc-
tions.
Ground the spray gun through connection to a
Graco-approved grounded fluid supply hose.

Safety Position

The guns have a two-position valving rod rear
stop. The SERVICE position allows for minimal
rearward travel of valving rod but will not allow
chemical to discharge. The OPEN position
allows full rearward travel of valving rod and
permits gun to dispense. Whenever gun is not
spraying, set to SERVICE position.
Engage Safety Stop
To engage safety stop, push in and turn safety
stop clockwise to place gun in CLOSED (SER-
VICE) position.
F . 10: Safety Stop - Closed
IG
Operation Basics
CLOSED (SERVICE)
When not spraying in
safety position.
13