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Troubleshooting
Problem
No adhesive or incorrect amount of
adhesive out of all modules when
triggered
No adhesive or incorrect amount of
adhesive out of one/some modules
when triggered
Adhesive out of one/some modules
when not triggered
334627K
1. Follow the Pressure Relief Procedure on page 11
2. Check all possible problems and causes before
Cause
Plugged manifold filter
Clogged hose
Failed solenoid valve
No signal to solenoid valve
Incorrect solenoid valve wiring
Incorrect signal to solenoid valve
Solenoid muffler plugged
No fluid pressure
Heater failure (cold applicator)
No air to solenoid valve
Dirty or faulty triggering device
Solenoid valve connected incorrectly Check the solenoid valve air
Clogged manifold passage
Plugged nozzle
Failed module in close position
Plugged module filter
Clogged manifold passage
Failed module in open position
Adhesive pressure too high
before checking or repairing the applicator.
disassembling the applicator.
Replace the manifold filter. See
Replace Inlet Filter on page 12.
Clean or replace the hose.
Check for correct operation. Clean
or replace.
Check the solenoid valve for correct
operation.
Check the solenoid valve wiring.
Check if there is 24 VDC.
Check and replace mufflers.
Check the adhesive delivery system.
Check and replace the heater
cartridge. See Replace Heater
Cartridge on page 19.
Check the air supply.
Check, clean, or replace the
triggering device.
connections.
Clean or replace the manifold.
Clean or replace nozzle.
Check for the correct operation.
Clean or replace. See Check
Module on page 16.
Replace the module. See Replace
Module on page 23.
Clean or replace the manifold.
Clean or replace the module. See
Replace Module on page 23.
Check and reduce fluid pressure.
Troubleshooting
Solution
13
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