Spray Pattern Troubleshooting - Graco 244581 Instructions-Parts List Manual

Spray Pattern 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
Fluttering or spitting spray.
Improper spray pattern.
Streaks.
309293K
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 42.
Check fluid source. Refill.
Replace, page 42.
Clean. See page 29.
Decrease.
Increase viscosity.
Increase.
Increase.
Reduce viscosity.
Decrease flow.
Overlap strokes 50%.
Clean or replace, page 42.
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