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Troubleshooting
Gun Operation Troubleshooting (continued)
Excessive spray fog
The air pressure is too high. Reduce the air cap air pressure by
closing the atomizing air valve more
or decreasing the gun air inlet pres-
sure; use the least air pressure
needed for good results. Do not re-
duce below minimum pressure need-
ed for full voltage. See page 18.
The fluid is thinned too much. Properly thin the fluid.
No fluid sprays from the gun
The fluid supply is low. Check the fluid supply; add fluid if
necessary.
The fluid nozzle is dirty or clogged. Clean the fluid nozzle; see page 21.
The fluid nozzle is damaged. Replace the fluid nozzle; see page
30.
The equipment is covered with
fluid
The exhaust air flow is insufficient or
not directed properly.
Check for the proper CFM; check the
baffles and direction of the air flow.
The distance between the gun and
workpiece is incorrect.
Adjust the spraying distance to 8 to
12 inches (203 to 305 mm).
Dirty air cap
The electrode is bent. Straighten the electrode.
The nozzle orifice is damaged. Replace the fluid nozzle; see page
30.
The air cap and fluid nozzle are mis-
aligned.
ALIGNED
Fluid
Nozzle
Air
Cap
MISALIGNED
Check the air cap and fluid nozzle
seat for fluid buildup. Clean or
replace parts as needed; see page 21
or 30.