Graco 309550U Manual De Usuario

Check your local electrical code and proportioner man-
ual for detailed grounding instructions.

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

Read Material Safety Data Sheet (MSDS) to know the 
specific hazards of isocyanates. Use equipment in a 
well-ventilated area. Wear respirator, gloves, and pro-
tective clothing when using isocyanates. 

To prevent cross-contamination of the gun’s wetted 
parts, do not interchange A component (isocyanate) 
and B component (resin) parts. The gun is shipped 
with the A side on the left. The fluid manifold, fluid 
housing, side seal cartridge, check valve cartridge, 
and mix chamber are marked on the A side. 

Read warnings, page 8.

Read warnings, page 7.

To engage piston safety lock: push knob in and turn 
clockwise. If engaged, gun will not actuate. 

To disengage piston safety lock: push knob in and 
turn counterclockwise until it pops out. There will be a 
gap between knob and gun body.

TI2409A

Engaged

TI2410A

Disengaged