Rev.7 28
TROUBLESHOOTING GUIDE (CONTINUED)
Symptom Cause Correction
The side seals are weak.
The side seals are open or
tear apart easily.
Improper seal
temperature.
Poor sealing surface.
Misalignment of seal
surfaces.
Low air pressure
Excessive wrinkles in
the film at the seal bar.
Experiment with higher or lower temperatures. Some
films may require temperatures in excess of 700°F.
Rotate or change the teflon. Replace the silicone strip
behind the teflon. Clean the seal bar (aluminum
scraper only).
Check the Vertical and Horizontal alignment between
the seal bar and seal pad (teflon). Adjust as necessary.
Machine air pressure should be set at a minimum of 80
PSI. Check for leaking air cylinders on vertical sealer,
replace as needed.
Check the film opening rod. This rod should be
centered under the belt path. The rod should have a
3/16” spacing below the belts. Check the alignment of
the seal pad and belt path centerline. The seal pad
should not protrude beyond the centerline. Level and
plumb the film roll platter.
Poor seal strength
Improper Side Seal
temperature.
Improper Seal Pad
adjustment.
Excessive tension on
the film.
Film not stopping soon
enough.
Try increasing the Side Seal temperature.
Check that the Seal Bar is in contact with the Seal Pad
the entire length of the bag.
Check that the Seal Pad Guards are set flush with the
Teflon Cloth and the Seal Pad.
Check that the distance between the Side Seal Bar and
the Seal Pad is 2 ½” to 2 5/8”.
Increase the Belt Pressure by adjusting the Take Up
Pulley.
Check to see that the resistance across the Side Seal
Element is approx. 40 ohms.
Volumetric Drum rotates
one time and the machine
shuts down without
advancing any film
The volumetric
position detector is not
working
Replace the position detector.
Volumetric dumps more
than once on the single
dump setting (double
dump)
Input from side seal
switch is out of time
with the Volumetric
Prox Switch Activating
Cam.
Sticking or slow clutch
air valve.
Increase the side seal speed with the flow control.
Replace the flow control or valve.
Lubricate, clean, or replace the valve.
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