26
TROUBLESHOOTING
SPRAY PATTERN/PROBLEM POSSIBLE REASON
SOLUTION
Fluid leakage from
packing nut.
1)Dry packing.
2)Sluggish needle.
3)Tight packing nut.
4)Worn fluid nozzle or
needle.
1) Lubricate.
2) Lubricate.
3) Adjust.
4) Replace.
Air leaking from air cap
without pulling trigger.
Thin, sandy, coarse
finish/excessive
overspray.
Thick, dimpled finish
resembling orange peel.
Low air pressure.
Regulator/compressor
settings.
Adjust the regulator on the
tool to the maximum setting.
Adjust the compressor
regulator to tool maximum
of 29 PSI. NOTE: Air hoses
may cause up to 15 PSI loss
in pressure, so you may need
to set a higher compressor
output to maintain the
required pressure at the tool.
Gun held too close to
surface.
Move gun further from
surface.
1)Gun held too far
from surface.
2)Atomization
pressure set too
high.
3)Improper gun
motion.
1)Move gun closer to
surface.
2)Adjust atomization
pressure.
3)Move at moderate pace,
parallel to surface.
no arcing.
1)Sticking air valve
stem.
2)Residue on air valve
or seat.
3)Worn or damaged
air valve or seat.
4)Broken air valve
spring.
5)Bent valve stem.
1)Lubricate.
2)Clean.
3)Replace.
4)Replace.
5)Replace.
