Nip Adjustment - ProSeal 25 Service Manual

5-2.

Nip Adjustment

Note: to perform the following adjustments, it is necessary to remove both plastic side covers first.
See Section 4-3: Disassembly / Reassembly Plastic Side Covers.
Necessary tools: Allen key 4mm.
In addition, a metal adjustment sheet, having a specific thickness, is necessary.
For the ProSeal 25, the thickness of this sheet must be 0.5 mm; size: 700x250 mm.
For the ProSeal 44, the thickness of this sheet must be 1.25 mm; size: 1150x250 mm.
Approximate time: 5 minutes.
Note: the top roller must be at room temperature, before this procedure is being performed.
1. Set the roller nip opening to its maximum position by pushing and turning the nip setting knob fully
clockwise .
2. Next, the nip adjustment strips have to be loosened on either side of the machine (if not loosened
already in case the previous procedure has been performed). See figure 35 and 36; the detailed
adjustment strip is shown figure 37. Note that the strip must not touch the top roller bearing
housing.
fig. 35
Note:
The figures above show the adjustment strips on the
ProSeal 25; the adjustment strips on the ProSeal 44
are positioned under the bearing housing, they are
larger, and mounted with two bolts.
3. Make sure that there is some space between the
adjustment strips and the bearing housings, see
figure 37.
4. Place the adjustment sheet between the rollers.
Make sure that the sheet covers the bottom
roller completely.
Adjustment Procedures
adjustment
strip
fig. 36
fig. 37
5-4 February 2000