Graco Inc. ti12872a Manual Do Utilizador

No or slow fluid flow, intermit-
tent spray, or fluttering spray

Wrong size fluid set being used

Select proper fluid set for fluid being sprayed, 
page 4

Gun fluid nozzle blocked by dried 
paint or damaged

Clean or replace fluid nozzle

Cup or pressure pot cover not tight 
enough or gasket damaged

Tighten cover or replace gasket

Cup or pressure pot fluid tubes 
blocked by dried paint or damaged

Clean or replace fluid tubes

Air flow to cup blocked

To check, remove cup (leave cover connected). 
Trigger gun and check air flow out of check 
valve. If air is not flowing freely, clean or replace 
check valve.

Needle packings not properly 
adjusted. 
Note: Fluid loss through packings 
affects fluid pressure and causes a 
fluid leak from gun body.

Clean gun body with solvent and brush pro-
vided. Adjust needle packings.

Plugged inlet strainer

Replace strainer if plugged or remove strainer if 
material is high viscous.

Fluid leaks at fluid nozzle 
after trigger is released

Needle not seating in fluid nozzle

Check for a loose fluid nozzle or a bent nozzle 
or needle; tighten nozzle or replace parts as 
needed.

Poor spray pattern

Air cap horn hole and/or fluid nozzle 
plugged

Soak air cap and/or fluid nozzle in solvent. 
Clean air cap horn holes with non-metallic item 
to avoid permanently damaging them.

Maximum inlet fluid pressure

50 psi (0.35 MPa, 3.5 bar)

Maximum inlet air pressure

10 psi (0.07 MPa, 0.7 bar)

Air inlet

Quick-disconnect

Fluid inlet

3/8 nps

Sound levels per ISO 3744

Sound power level

less than 65.0 dB(A)

Sound pressure level

less than 65.0 dB(A)

Wetted parts

Bare spray gun

stainless steel, aluminum

Spray gun cups

aluminum, polyethylene

1-quart optional remote cup

aluminum, polyethylene