Graco Inc. ti12910a Paint Sprayer User Manual


 
Troubleshooting
313317C 5
Troubleshooting
Problem Cause Solution
Orange peel finish - Paint
surface not smooth
Pain droplets too large Maintain proper spraying distance, page 2.
Keep turbine air filters clean to allow full air
flow.
Do not use an air hose that is too long to
provide sufficient atomization pressure.
If droplets are still too large, reduce fluid.
Paint droplets drying too fast to prop-
erly flow out of gun
Keep object being sprayed out of direct sunlight.
When spraying in warmer temperatures, use a
slower evaporating solvent or a reducer.
Cold weather spraying Keep fluid and object being sprayed as close to
room temperature as possible. When spraying
on a cold surface, most paints will become too
thick to flow properly.
Blushing - clear coatings
appear milky
Moisture condensation is trapped in
lacquer when spraying in hot, humid
conditions
Allow turbine to warm up a few minutes
before spraying.
Store lacquer off concrete floors, at room
temperature.
Apply lighter coats and allow for proper dry-
ing time.
Use a slower evaporating solvent or
reducer.
Do not spray in windy conditions.
Fish eyes - small pools on
painted surface that will not
fill
Silicone contamination from lubri-
cants, grease, polish, or waxes on
the surface being sprayed
Clean all parts with a cleaning solvent; wipe with
a solvent rag and a clean rag. Replace rags as
needed. If problem persists, use a fish eye elimi-
nator.
Runs and sags Applying too much paint per pass for
the drying conditions
Move gun faster or decrease fluid flow.
Maintain proper spraying distance, page 2.
Reduce amount of thinner or use a faster
drying thinner.
Solvent pops or bubbles Sprayed surface drying before sol-
vent gas can be released
Apply fluid in lighter coats to allow for proper
evaporation.
Use the recommended thinners.
Follow the solutions for Orange Peel Finish,
Paint Droplets Too Large in this Trouble-
shooting Table.