Troubleshooting; Spray Pattern Troubleshooting - Graco PRO Xs Instructions - Parts Manual

Troubleshooting

To reduce the risk of an injury, follow the Pressure
Relief Procedure on page 15 when you stop
spraying and whenever you are instructed to relieve
the pressure.

Spray Pattern Troubleshooting

NOTE: Some spray pattern problems are caused by the improper balance between air and fluid.
Problem
Fluttering or spitting spray.
Improper spray pattern.
Streaks.
313227E
NOTE: Check all possible remedies in the Troubleshoot-
ing Chart before disassembling the gun.
Cause
No fluid.
Loose, dirty, damaged nozzle/seat.
Air in fluid supply.
Damaged nozzle or air cap.
Fluid buildup on air cap or nozzle.
Fan air pressure too high.
Fluid too thin.
Fluid pressure too low.
Fan air pressure too low.
Fluid too thick.
Too much fluid.
Did not apply 50% overlap.
Dirty or damaged air cap.
Troubleshooting
Solution
Refill supply.
Clean or replace nozzle, page 30.
Check fluid source. Refill.
Replace, page 30.
Clean. See page 20.
Decrease.
Increase viscosity.
Increase.
Increase.
Reduce viscosity.
Decrease flow.
Overlap strokes 50%.
Clean or replace, page 30.
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