Troubleshooting - Graco Fusion CS 312666F Manual

Troubleshooting

1. Follow Pressure Relief Procedure, page
17, before checking or repairing gun.
2. Check all possible problems and causes
before disassembling gun.
PROBLEM
Gun does not fully actuate when
triggered.
Fluid does not spray when gun is
fully actuated.
Gun actuates slowly.
Gun delays, then actuates
abruptly.
Loss of round pattern.
Loss of flat pattern.
312666F
To prevent cross-contamination of gun's wet-
ted parts, do not interchange A component
(isocyanate) and B component (resin) parts.
CAUSE
Safety lock engaged.
Plugged breather plug (9).
Damaged air valve o-rings (15).
Closed fluid valves (1b).
Plugged impingement ports.
Plugged check valves (44,45).
Plugged breather plug (9).
Damaged piston o-rings (4a, 4c). Replace. See Piston, page 42.
Dirty air valve, or damaged
o-rings (15).
Cured material around side seals
(42, 43).
Dirty mix chamber (14) nozzle.
Empty ClearShot Liquid cartridge. Replace. See ClearShot Liquid
ClearShot Liquid dosing pump is
not primed.
Plugged spray tip.
Worn tip.
Empty ClearShot Liquid cartridge. Replace. See ClearShot Liquid
Dirty mix chamber (14) nozzle.
Troubleshooting
CAUTION
SOLUTION
Disengage piston safety lock. See
Piston Safety Lock, page 12.
Clean Breather Plug, page 26.
Replace. See Air Valve, page 43.
Open.
Clean Impingement Ports, page
29.
Clean. See Check Valves, page
41.
Clean Breather Plug, page 26.
Clean air valve or replace o-rings.
See Air Valve, page 43.
Inspect side seals (42c) and mix
chamber (14) for scratches.
Replace; see Mix Chamber and
Side Seal Assemblies, page 38.
Clean Mix Chamber Nozzle,
page 28.
Cartridge Installation/Removal ,
page 23.
Prime dosing pump. See Clear-
Shot Liquid Cartridge Installa-
tion/Removal , page 23.
Clean in compatible solvent.
Replace. See Flat Spray Tips,
page 19.
Cartridge Installation/Removal ,
page 23.
Clean Mix Chamber Nozzle,
page 28.
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