25
TROUBLESHOOTING
SPRAY PATTERN/PROBLEM POSSIBLE REASON
SOLUTION
Intermittent/
sputtering spray
1)Material level too
low.
2)Container tipped
too far.
3)Loose fluid inlet
connection.
4)Needle seat loose/
damaged.
5)Packing around
needle valve is
dried out or loose.
6)Fluid nozzle loosely
installed, or dirt
between nozzle and
body.
7)Clogged air vent.
1) Refill.
2) Hold more upright.
3) Tighten.
4) Adjust or replace.
5) Lubricate/tighten.
6) Remove, clean, tighten.
7) Clean vent hole.
Improper spray pattern
Unable to get round
spray
Fan adjustment screw
not seating properly.
Clean or replace.
1)Gun improperly
adjusted.
2)Dirty air cap.
3)Nozzle tip
obstructed.
4)Sluggish needle.
1)Re-adjust gun. Follow
instructions carefully.
2)Clean air cap.
3)Clean.
4)Lubricate.
Will not spray
1)No air pressure at
gun.
2)Fluid control screw
not open enough.
3)Material too heavy.
1)Check air supply and air
lines.
2)Open fluid control screw.
Increase fluid pressure at
tank.
3)Thin material.