Operation
4-7
Process Output Trouble Shooting
Straight waves in output
Pull roll creating too much tension
Decrease clutch air pressure
Film not cooling fast enough
Slow feed rate down and turn on cooling system.
Waves on one side of output
Nip “zero” setting may be incorrect
Check nip setting and adjust if necessary.
Refer to
Zeroing the Nip
in the maintenance section.
Pull roll “zero” setting may be incorrect
Check nip setting and adjust if
necessary. Refer to
Zeroing the Nip
in the maintenance section. Pay particular
attention to sides opposite the waves.
D-Waves in Product
If waves are in the substrate and not film
Substrate problem
Check the substrate moisture content and the substrate
tension.
If waves are in the film
Low tension between nip & pull roll
Increase air pressure to pull roll clutch.
Roll pressure settings
Adjust nip and pull roll settings as required.
Web Breaks
Web breaks caused by excess tension: If the web breaks between the unwind station and the
nip, reduce the unwind brake tension. If the web breaks between the laminating opening and the
rewind station, reduce the rewind clutch tension.
Web breaks will occur from faulty material. The AGL laminator will not correct this; the material
must be replaced.
Curl in Product
1. Running a hot mount material in cold-mount machine sometimes creates a curl in the finished
product.
2. Too much web tension: Reduce unwind brake tension.
3. Excessive roll pressure: Reduce upper roll pressure.
4. Wrong spacers being used.
