Operation Basics, Grounding, Isocyanate Hazard

Operation Basics

Grounding

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.

Check your local electrical code and propor- tioner manual for detailed grounding instruc- tions.

Ground the spray guy through connection to a Graco-approved grounded fluid supply hose.

Coupling Block

Install Coupling Block

1.Inspect coupling block gaskets for damage and wear. Replace if necessary.

2.With gaskets in place, fit coupling block to gun block.

3.Insert coupling block mounting screw and tighten securely with 5/16 in. nut driver.

Coupling Block

Gaskets

Coupling Block

Mounting Screw

FIG. 3: Coupling Block

311320G