Graco InvisiPac GM100 Plug-Free Instructions Manual page 15

Problem
Speed has reduced on one module
Adhesive out of all modules when
not triggered
334627K
Cause
Low air pressure to solenoid valve
Low fluid pressure
Low applicator temperature
Plugged manifold filter
Module piston seal air leak
Solenoid valve failure
Adhesive pressure too high
Solenoid valve connected incorrectly Check the solenoid valve air
Module failure
No air to solenoid valve
Troubleshooting
Solution
Check the air supply.
Check the adhesive delivery system.
Check the heat operation. See the
"Applicator will not heat" section on
page 14.
Replace the manifold filter. See
Replace Inlet Filter on page 12.
Check the solenoid air close exhaust
port. See Replace Module on page
23.
Check and replace the solenoid
valve.
Check and reduce the fluid
pressure.
connections.
Check and replace all module. See
Check Module on page 16.
Check the air supply.
15