Graco 24T918 Instruction Manual page 51

Problem Cause
No adhesive or Plugged applicator
incorrect manifold filter.
amount of
Clogged hose.
adhesive out-
put when all Defective solenoid
dispense mod- valve.
ules are trig-
No signal from control
gered
to solenoid.
Solenoid mufflers
plugged.
No air to air solenoid.
Plugged system outlet
filter.
If multiple applicators
are triggered simulta-
neously, maximum
pump rate may be
exceeded.
No adhesive or Plugged tip on dis-
incorrect pense module.
amount of
Defective dispense
adhesive out of
module in closed/par-
one/some of
tial open position.
the dispense
modules when Plugged applicator
triggered manifold filter (single
dispense module appli-
cator).
Clogged hose
Defective solenoid
valve
No signal from control
to solenoid
Plugged solenoid muf-
flers
No air to solenoid
Plugged system outlet
filter.
If multiple applicators
are triggered simulta-
neously, maximum
pump rate may be
exceeded.
333347F
Solution
Replace applicator manifold filter. Graco applicator manifold filter in
bottom of manifold or inline filter on other applicators.
Flush or replace hose.
Check that correct voltage is input into solenoid valve. If voltage is cor-
rect, replace solenoid.
If no voltage is present at solenoid, check control cable and pattern
controller. Replace component.
Replace solenoid mufflers.
Re-establish air supply to solenoid.
Replace Outlet Filter. See page 37.
Stagger applicator opening to reduce the maximum required flow rate
to below maximum pump rate.
Replace tip on dispense module.
Replace dispense module.
Replace applicator manifold filter. Graco applicator manifold filter in
bottom of manifold or inline filter on other manifolds.
Flush or replace hose.
Check that correct voltage is input into solenoid valve. If voltage is cor-
rect, replace solenoid.
If no voltage is present at solenoid, check control cable and pattern
controller. Replace component.
Replace solenoid mufflers.
Re-establish air supply to solenoid.
Replace Outlet Filter. See page 37.
Stagger applicator opening to reduce the maximum required flow rate
to below maximum pump rate.
Troubleshooting
51