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14 308-084
GUN
OPERA
TION TROUBLESHOOTING CHART
Worn
fluid rod packings or fluid rod
Replace fluid rod packings or rod.
See page 23.
Fluid rod worn or damaged
Replace fluid rod. See page 23.
W
orn fluid seat
Replace fluid nozzle and/or
electrode. See page 19 and 20.
Piston seal or o-ring damaged
Replace seal and/or o-ring and
lubricate.
Loose resistor stud
T
ighten resistor stud. See page 19.
Loose fluid nozzle
T
ighten fluid nozzle. See page 19.
Damaged resistor stud o-ring
Replace o-ring. See page 19.
Insuf
ficient air pressure Increase air pressure, use least air
pressure needed for good results.
Fluid poorly mixed or filtered
Remix or refilter fluid.
Improper thinner being used
Use proper thinner
.
T
oo much air pressure
Reduce air pressure, use least air
pressure needed for good results.
Fluid thinned too much
Properly thin fluid.
Fluid low Check, add fluid if necessary
.
Damaged air cap
Replace air cap.
Dirty or clogged fluid nozzle
Clean fluid nozzle. See page 1
1.
Damaged fluid nozzle
Replace fluid nozzle. See page 19.
Piston not actuating
Check cylinder (CYL) air
.
Actuator arm out of position
Check actuator arm (29) and
nuts (25, 7). See page 21.
Exhaust air flow insufficient
Check for proper CFM; check
or not directed properly
baf
fles and direction of air flow
.
Improper distance between gun
Adjust spraying distance to
and workpiece
8 to 12 inches (203 to 305 mm).
Misalignment between air cap
Remove and clean air cap and fluid
and fluid nozzle
nozzle. See page 1
1. Then reinstall
them.
Or replace fluid nozzle and air cap.
See page 19.
PROBLEM CAUSE SOLUTION
Fluid leakage from front
of gun
Excessive spray fog
Leakage from fluid
packing area
“Orange Peel” finish
No fluid sprays from gun
Equipment covered
with fluid
Dirty air cap
Air
Cap
Fluid Nozzle
ALIGNED MISALIGNED