Graco Inc GX-7A Operation Basics, Isocyanate Hazard, Keep a and B Components Separate, Grounding

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.

Operation Basics

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.

CLOSED (SERVICE)

When not spraying in safety position.

FIG. 10: Safety Stop - Closed

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