Operating Procedures
Rovema VPK Operators Manual
3/2000 VPK REV(B) PANELVIEW 600
7-5
Checking Empty Bags
Use the following procedure to check the empty bags:
1.
Squeeze the bags to check the integrity of the seals.
If the seals leak air, check the sealing temperature.
2.
Check that the edges of the vertical seal are even.
If the edges of the vertical seal are not even:
a.
Adjust the film tracking (left or right).
b.
Check that the film moves over the forming collar smoothly.
3.
Check that the bags are cut to the desired length.
If the bags are not cut to the desired length:
a.
Check the bag length setting on the operations screen.
b.
If using registered film, check the settings on the photoeye
screen.
c.
Check the film tension.
d.
Check that the belts are not slipping on the film.
4.
If gusseting was used, check that they are even; the bags should
look symmetric.
