Spray
Spray
Spray Pattern
Pattern
Pattern Troubleshooting
Troubleshooting
Troubleshooting
Check all possible remedies in the Troubleshooting
Chart before disassembling the gun.
Some spray pattern problems are caused by the
improper balance between air and fluid.
Problem
Problem
Problem
Cause
Cause
Cause
Solution
Solution
Solution
No fluid.
Refill supply.
Loose, dirty, damaged
nozzle/seat.
Clean or replace nozzle, see
, or
Air Cap and Nozzle Replacement,
page 49
Fluttering or spitting spray.
Air in fluid supply.
Check fluid source. Refill.
Improper spray pattern.
Damaged or dirty nozzle or air cap.
Clean or replace. See
.
Fluid buildup on air cap or nozzle.
Clean.
See
.
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
, or
Air Cap and Nozzle Replacement,
page 49
44
3A7504A