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Troubleshooting
CheckCheck
Check
ModuleModule
Module
Check the module operation to verify if the module
has failed and needs to be replaced.
1. Visually check for the presence of glue in the
weep hole (W).
NOTE:NOTE:
NOTE:
If glue is present, the module needs to be
replaced. See Replace Module, page 24.
2. Verify that the air pressure to the solenoid valve
is 65–80 psi (4.4 – 5.5 bar, 0.44 – 0.55 MPa).
Figure 11 Check Module
3. Verify that there is air pressure to the motor,
which will verify that there is uid pressure.
4. Make sure the system is at the correct
temperature.
5. While looking in the weep hole press the solenoid
valve manual override switch (M) to manually
trigger the applicator.
NOTE:NOTE:
NOTE:
Look through the weep hole. If the rod
moves then the module is functioning properly. If
the rod does not move, the module needs to be
replaced. See Replace Module, page 24.
6. Remove the nozzle.
7. Press the manual over-ride switch to trigger the
module. If glue ows from the seat, the module
is functioning properly.
CheckCheck
Check
NozzleNozzle
Nozzle
andand
and
ModuleModule
Module
Trigger the applicator without the nozzle to determine
if the nozzle or module is clogged.
1. Disable applicator assembly. See
Before Beginning Repair, page 20.
2. Use a 1/2 in. wrench to loosen the nozzle and
remove by hand.
Figure 12
3. Connect the power and solenoid cable.
4. Return the applicator back into operation.
5. Trigger the applicator.
a. If adhesive ows, clean the nozzle and
reinstall on the module.
b. If adhesive does not ow, the module is
clogged and needs to be replaced. See
Replace Module, page 24.
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