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Troubleshooting
TroubleshootingTroubleshooting
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 qualied.
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.
SpraySpray
Spray
PatternPattern
Pattern
TroubleshootingTroubleshooting
Troubleshooting
Some spray pattern problems are caused by the improper balance between air and uid.
ProblemProblem
Problem
CauseCause
Cause
SolutionSolution
Solution
No uid. Rell supply.
Loose, dirty, 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 uid supply. Check uid source. Rell.
Improper spray pattern. Damaged or dirty nozzle or air cap.
Clean or replace. See Air 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 uid. Decrease ow.
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.
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