Troubleshooting
309550ZAP 31
Loss of flat pattern The spray tip is plugged. Clean in compatible solvent. See
Reposition or Replace Flat Spray
Tips, page 18.
The tip is worn. Replace the flat spray tip. See
Reposition or Replace Flat Spray
Tips, page 18.
The mix chamber nozzle is dirty. Clean the mix chamber nozzle. See
Clean Mix Chamber Nozzle, page
23.
Leakage between flat tip and mix
chamber
The tip is not seated properly. Reassemble. See Reposition or
Replace Flat Spray Tips, page 18.
The o-ring is damaged or missing
(40).
Replace the flat spray tip o-ring. See
Reposition or Replace Flat Spray
Tips, page 18.
Pressure imbalance The impingement ports are plugged. Clean the impingement ports. See
Clean Impingement Ports, page 23.
The check valves are plugged (26). Clean the check valves. See Inspect
the Check Valves, page 26.
The viscosities not equal. Adjust temperature to compensate.
A and/or B fluid in gun air section The side seals are damaged (18c). Replace. See Inspect the Mix
Chamber and Side Seal
Cartridges, page 24.
The mix chamber is damaged(19). Replace. See Inspect the Mix
Chamber and Side Seal
Cartridges, page 24.
The side seal o-rings are damaged
(18d, 18e).
Replace the side seal o-rings. See
Inspect the Mix Chamber and Side
Seal Cartridges, page 24.
The air cap is tightened while the
fluid valves (12b) are open.
Close valves first.
Fluid mist from mix chamber or air
cap
The side seals (18c) are damaged. Replace the side seals. See Inspect
the Mix Chamber and Side Seal
Cartridges, page 24.
The side seal o-rings (18d, 18e) are
damaged.
Replace the side seal o-rings. See
Inspect the Mix Chamber and Side
Seal Cartridges, page 24.
The mix chamber (19) is damaged. Replace the mix chamber. See
Inspect the Mix Chamber and Side
Seal Cartridges, page 24.
Excessive overspray Too much cleanoff air. Reduce cleanoff air. See Setup,
page 15.
Problem Cause Solution
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