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Troubleshooting
Problem
Gun does not spray
Dirty air cap
Air leaks from manifold
Fluid doesn't shut off properly
Excessive paint wrap back to opera-
tor
36
Cause
Low fluid supply.
Damaged spray tip.
Dirty or clogged spray tip (3).
Damaged fluid needle (2).
Piston (11) not actuating.
Actuator arm (15) is out of position.
Damaged or plugged air cap
Manifold is not tight
Worn or missing o-rings
Fluid buildup on fluid needle (2)
Piston sticking
Poor grounding
Incorrect distance from gun to part
Solution
Add fluid if necessary.
Replace; see Air Cap/Tip Guard,
Spray Tip, and Fluid Seat Housing
Replacement page 39.
Clean; see Clean the Spray Gun,
page 27.
Replace, see Fluid Needle Replace-
ment, page 40.
Check cylinder air. Check piston
o-ring (11d); see Piston Repair,
page 41.
Check actuator arm and nuts. See
page 42.
Clean; see Clean the Spray Gun,
page 27.
Tighten manifold screws
Replace o-rings. See page 42
Replace needle; Fluid Needle
Replacement, page 40
Clean or replace o-rings. See Piston
Repair, page 41
See Grounding, page 18
Should be 8-12 in. (200-300 mm).
333013B
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Table of Contents
Troubleshooting
