User's Manual

Troubleshooting
313227C 27
Electrical Troubleshooting
Installing and servicing this equipment requires
access to parts which may cause an electric shock or
other serious injury if the work is not performed
properly. Do not install or repair this equipment
unless you are trained and qualified.
Problem Cause Solution
Poor wrap. Turbine air is not turned on. Turn on.
(In general, a Pro Xs Waterborne
gun will have less wrap than a Pro
Xs
solventborne gun.)
Booth exhaust velocity is too high. Reduce velocity to within code lim-
its.
Atomizing air pressure too high. Decrease.
Fluid pressure too high. Decrease.
Incorrect distance from gun to part. Should be 8-12 in. (200-300 mm).
Poorly grounded parts. Resistance must be 1 megohm or
less. Clean workpiece hangers.
Faulty gun resistance. See Test Total Gun Resistance on
page 22.
Low fluid resistivity. Check fluid resistivity, page 14.
Fluid leaks from the packing (8d)
and causes a short.
Clean the packing rod cavity.
Replace the packing rod. See page
33.
Faulty turbine alternator. Be sure the plug is in place on the
back of the turbine alternator hous-
ing. Remove and test the turbine
alternator. See page 39.
The KV switch is stuck on low. Check the switch actuation; replace
if needed.
No power. Replace power supply. See page 38.
No voltage or low voltage reading on
the gun ES display module
Damaged fiber optic cable or con-
nection.
Check; replace damaged parts.
Turbine air is not turned on. Turn on.
Poor wrap. See causes and solutions under
Poor Wrap, above.
Operator gets mild shock. Operator not grounded or is near
ungrounded object.
See Grounding on page 12.
Gun not grounded. See Check Electrical Grounding
on page 13 and Test Total Gun
Resistance on page 22.
Operator gets shock from work-
piece.
Workpiece not grounded. Resistance must be 1 megohm or
less. Clean workpiece hangers.