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Troubleshooting
310964B
45
No or slow fluid flow, intermittent
spray, or fluttering spray
Wrong size fluid set being used or
o-ring on nozzle missing
Select proper fluid set for fluid being
sprayed, page 17. Or put an o-ring on
nozzle.
Gun fluid nozzle blocked by dried
paint or damaged
Clean or replace fluid nozzle.
Cup or pressure pot cover not tight
enough or gasket damaged
Tighten cover or replace gasket.
Cup or pressure pot fluid tube
blocked by dried paint or damaged
Clean or replace fluid tube.
Air flow to cup blocked
To check, remove cup (leave cover
connected). Trigger gun and check
air flow out of duckbill valve. If air is
not flowing freely, clean or replace
duckbill valve.
Needle packings not properly
adjusted
Note:
Fluid loss through packings
affects fluid pressure and causes a
fluid leak from gun body.
Clean gun body with solvent and
brush provided. Adjust needle
packings.
Plugged inlet strainer
Replace strainer if plugged or remove
strainer if material is high viscous.
Fluid leaks at fluid nozzle after trigger
is released
Needle not seating in fluid nozzle
Check for a loose fluid nozzle or a
bent nozzle or needle; tighten nozzle
or replace parts as needed.
Poor spray pattern
Air cap horn hole and/or fluid nozzle
plugged
Soak air cap and/or fluid nozzle in
solvent. Clean air cap horn holes with
non-metallic item to avoid
permanently damaging them.
Page 30.
Problem
Cause
Solution