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Troubleshooting
16
311053L
Troubleshooting
NOTE:
Check all possible remedies in the
troubleshooting charts before disassembling the gun.
NOTE:
Some improper patterns are caused by the
improper balance between air and fluid. Refer to
, page 18.
General Troubleshooting
Problem
Cause
Solution
Fluid leakage through venting
holes.
Worn o-rings or packings on needle
assembly (12).
Replace o-rings or needle assembly.
Air leakage through venting
hole.
Worn o-ring (23).
Check and replace as needed.
Air leakage from back of gun.
Worn o-rings (22, 23).
Replace o-rings.
Fluid leakage from front of gun. Fluid needle (12) is dirty, worn, or
damaged
Clean or replace fluid needle.
Dirty or worn seat (10, 41).
Clean or replace the seat (10, 41) and
gasket (11). The gasket must be replaced
whenever you remove the seat from the
gun.
Spray tip seal is leaking.
Tighten nut (7) or replace spray tip gasket
(8).
Seat (10, 41) is insufficiently
tightened or gasket (11) is missing
or worn from multiple uses.
Tighten seat (10, 41) and replace gasket
(11). The gasket must be replaced
whenever you remove the seat from the
gun.