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TROUBLESHOOTING GUIDE
General Problem
DEFECTIVE SPRAY PATTERN
Pattern Will Not
Shape
Pattern Heavy At
One End
Extremely Heavy
Spitting or Severely
Deformed Pattern
INADEQUATE DELIVERY
Air
Fluid
AH-06-01-R17 (08/2019)
Possible Cause
Clogged or faulty fan air valve
Air passages in applicator or air
line clogged
Worn, faulty, or clogged air cap
Barrel restrictor missing
Clogged or faulty air cap
Clogged or faulty fluid nozzle
Wrong air cap/fluid nozzle
combination
Faulty air cap
Air passages in applicator or air line
clogged
Inadequate air source
Paint in air passage
Clogged or faulty fluid nozzle
Clogged passages in applicator fluid
tube or fluid line
Insufficient needle/electrode travel
Low fluid supply pressure
Clogged fluid filter
Clogged or obstructed valve or fluid
regulator
(Cont.)
Clean, repair, or replace.
Blow out, clean, or replace.
Clean or replace.
Replace barrel restrictor.
Clean or replace.
Clean or replace.
Ensure proper fluid nozzle/air nozzle pressure
reducer combinations (see"Fluid Nozzle Tables" in
the "Installation" section).
Replace.
Blow out.
Increase pressure, flow capacity.
Clean and blow out.
Flush or replace.
Flush.
Adjust (see "Trigger Adjustment Nut Dimension
Figure" in the "Maintenance" section).
Increase.
Clean or replace.
Clean as required or replace.
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MAINTENANCE
Solution
(Continued On Next Page)
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