Troubleshooting
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.
To reduce the risk of an injury, follow the
Pressure Relief Procedure, page 27, whenever
you are instructed to relieve the pressure.
Check all possible remedies in the Troubleshooting Chart before disassembling the gun.
Spray Patt
ern Troubleshooting
Some spray pattern problems are caused by the improper balance between air and fluid.
Problem
Cause Solution
No fluid. Refill supply.
Loose, d
irty, damaged
nozzle/
seat.
Clean or replace nozzle, see
Clean the Gun Daily, page 29,or
Air Cap and Nozzle Replacement,
page 38.
Fluttering or spitting spray.
Air in fl
uid supply.
Check fl
uid source. Refill.
Improper spray pattern. Damaged or dirty nozzle or air cap.
Clean o
rreplace.SeeAir Cap and
Nozzle
Replacement, page 38.
Fluid buildup on air cap or nozzle.
Clean. See
Clean the Gun Daily, page 29.
Fan air pressure too high. Decrease.
Fluid too thin. Increase viscosity.
Fluid pressure too low. Increase.
Fan air pressure too low. Increase.
Fluid too thick. Reduce viscosity.
Too much fluid. Decrease flow.
Did not apply 50% overlap. Overlap strokes 50%.Streaks.
Dirty or damaged air cap.
Clean or replace air cap. See
Clean the Gun Daily, page 29,or
Air Cap and Nozzle Replacement,
page 38.
3A2494E 33
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