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Troubleshooting
312666R 31
Troubleshooting
1. Follow Pressure Relief Procedure, page
17, before checking or repairing gun.
2. Check all possible problems and causes
before disassembling gun.
CAUTION
To prevent cross-contamination of gun’s wet-
ted parts, do not interchange A component
(isocyanate) and B component (resin) parts.
PROBLEM CAUSE SOLUTION
Gun does not fully actuate when
triggered.
Safety lock engaged. Disengage piston safety lock. See
Piston Safety Lock, page 12.
Plugged breather plug (9). Clean Breather Plug, page 26.
Damaged air valve o-rings (15). Replace. See Air Valve, page 43.
Fluid does not spray when gun is
fully actuated.
Closed fluid valves (1b). Open.
Plugged impingement ports. Clean Impingement Ports, page
29.
Plugged check valves (44,45). Clean. See Check Valves, page
41.
Gun actuates slowly. Plugged breather plug (9). Clean Breather Plug, page 26.
Damaged piston o-rings (4a, 4c). Replace. See Piston, page 42.
Dirty air valve, or damaged
o-rings (15).
Clean air valve or replace o-rings.
See Air Valve, page 43.
Gun delays, then actuates
abruptly.
Cured material around side seals
(42, 43).
Inspect side seals (42c) and mix
chamber (14) for scratches.
Replace; see Mix Chamber and
Side Seal Assemblies, page 38.
Loss of round pattern. Dirty mix chamber (14) nozzle. Clean Mix Chamber Nozzle,
page 28.
Empty ClearShot Liquid cartridge. Replace. See ClearShot Liquid
Cartridge Installation/Removal ,
page 23.
ClearShot Liquid dosing pump is
not primed.
Prime dosing pump. See Clear-
Shot Liquid Cartridge Installa-
tion/Removal , page 23.
Loss of flat pattern. Plugged spray tip. Clean in compatible solvent.
Worn tip. Replace. See Flat Spray Tips,
page 19.
Empty ClearShot Liquid cartridge. Replace. See ClearShot Liquid
Cartridge Installation/Removal ,
page 23.
Dirty mix chamber (14) nozzle. Clean Mix Chamber Nozzle,
page 28.