Troubleshooting
32 309550ZAP
Rapid buildup of material on air cap. The air cap holes are plugged. Clean the air cap holes. See Clean
Air Cap, page 23.
Too little cleanoff air. Increase cleanoff air. See Setup,
page 15.
The fluid housing o-ring (23) is
damaged or missing.
Replace the fluid housing o-ring. See
Parts, page 33.
The front o-ring (3) is damaged. Replace the front o-ring.See Parts,
page 33.
Reduced cleanoff air. The front o-ring (3) is damaged. Replace the front o-ring. See Parts,
page 33.
Excessive cleanoff air when fluid
valves are closed and gun is
triggered.
The fluid housing o-ring (23) is
damaged or missing.
Replace the fluid housing o-ring. See
Parts, page 33.
Fluid does not shut off when fluid
valves are closed.
The fluid valves (12b) are damaged. Replace the fluid valves.
Burst of air from muffler when gun is
triggered.
Normal. No action required.
Steady air leakage from muffler. The air valve o-rings (24) are
damaged.
Replace the valve o-rings. See
Inspect the Air Valve, page 28.
The piston o-rings (16, 17) are
damaged
Replace the piston o-rings. See
Parts, page 33.
Air leakage from front air valve. The air valve o-rings (24) are
damaged
Replace the valve o-rings. See
Inspect the Air Valve, page 28.
Air leak around lock ring. The o-ring (21) is damaged Replace the o-ring. See Parts, page
33.
Cannot tighten retaining ring (9) until
it bottoms out.
The air cap (10) was assembled
before retaining ring (9).
Install retaining ring (9) first, then air
cap (10). See Inspect the Mix
Chamber and Side Seal
Cartridges, page 24.
Problem Cause Solution
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