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Troubleshooting
24 309550U
A and/or B fluid in gun air section. Damaged side seals (18c). Replace, page 29.
Damaged mix chamber (19). Replace, page 29.
Damaged side seal o-rings (18d,
18e).
Replace, page 29.
Tightened air cap with fluid valves
(12b) open.
Close valves first.
Fluid mist from mix chamber or air
cap.
Damaged side seals (18c). Replace, page 29.
Damaged side seal o-rings (18d,
18e).
Replace, page 29.
Damaged mix chamber (19). Replace, page 29.
Excessive overspray. Too much cleanoff air. Reduce, page 13.
Rapid buildup of material on air cap. Plugged air cap holes. Clean, page 20.
Too little cleanoff air. Increase, page 13.
Damaged/missing fluid housing
o-ring (23).
Replace, page 29.
Damaged front o-ring (3). Replace, page 29.
Reduced cleanoff air. Damaged front o-ring (3). Replace, page 29.
Excessive cleanoff air when fluid
valves are closed and gun is trig-
gered.
Damaged/missing fluid housing
o-ring (23).
Replace, page 29.
Fluid does not shut off when fluid
valves are closed.
Damaged fluid valves (12b). Replace.
Burst of air from muffler when gun is
triggered.
Normal. No action required.
Steady air leakage from muffler. Damaged air valve o-rings (24). Replace, page 33.
Damaged piston o-rings (16, 17). Replace, page 32.
Air leakage from front air valve. Damaged air valve o-rings (24). Replace, page 33.
Air leak around lock ring. Damaged o-ring (21). Replace, page 29.
Cannot tighten retaining ring (9) until
it bottoms out.
Air cap (10) assembled before retain-
ing ring (9).
Install retaining ring (9) first, then air
cap (10), page 30.
PROBLEM CAUSE SOLUTION