Graco Fusion CS Series Instructions Manual page 31

PROBLEM
Leakage between flat tip and mix
chamber.
Pressure imbalance.
A and/or B fluid in gun air section. Damaged side seals (42, 43).
Fluid mist from mix chamber.
Rapid buildup of material on air
cap.
Reduced cleanoff air.
Excessive purge air when fluid
valves are closed and gun is
de-triggered.
Fluid does not shut off when fluid
valves are closed.
Burst of air from muffler when gun
is triggered.
312666W
CAUSE
Tip not seated properly.
Damaged/missing o-ring (47).
Plugged impingement ports.
Plugged check valves (44, 45).
Viscosities not equal.
Plugged fluid screens.
Damaged mix chamber (14).
Damaged side seal o-rings (42d,
42e).
Tightened flat tip retainer with
fluid valves (1b) open.
Damaged side seals (42, 43).
Damaged side seal o-rings (42d,
42e).
Damaged mix chamber (14).
Dosed ClearShot Liquid normal.
Plugged front cover holes.
Damaged/missing fluid housing
o-ring (2b or 2c).
Damaged front o-ring (2b).
Damaged fluid housing o-ring
(2d).
Damaged/missing fluid housing
o-ring (2c).
Damaged fluid valves (1b).
Normal.
Troubleshooting
SOLUTION
Reassemble. See Flat Spray
Tips, page 19.
Replace. See Flat Spray Tips,
page 19.
Clean Impingement Ports, page
28.
Clean. See Check Valves, page
40.
Adjust temperature to
compensate.
Clean. See Clean or Replace
Fluid Screens, page 26.
Replace. See Mix Chamber and
Side Seal Assemblies, page 37.
Replace. See Mix Chamber and
Side Seal Assemblies, page 37.
Replace. See Mix Chamber and
Side Seal Assemblies, page 37.
Close valves first.
Replace. See Mix Chamber and
Side Seal Assemblies, page 37.
Replace. See Mix Chamber and
Side Seal Assemblies, page 37.
Replace. See Mix Chamber and
Side Seal Assemblies, page 37.
No action required.
Clean or Replace Front Cover
and Retainer, page 25.
Replace. See Parts, page 44.
Replace. See Parts, page 44.
Replace. See Parts, page 44.
Replace. See Parts, page 44.
Replace. See Parts, page 44.
No action required.
31