MBM Corporation 352S - Manual (Page 65)

Operator's Manual multipli 35
Mathias Bäuerle GmbH 71
21. TROUBLE SHOOTING GUIDE
Problem: see number.
Intermittent and irregular paper feed 1 2 3 4 5
Creasing 2 6 7 8 9 23 24
Several sheets fed together 10 11 12 13
Paper jam at the entrance into the fold plates 14 15
No feed 16 17 18
Out-of-square folds 19
Points 20
Fold variations 21 22
Folded sheets run into each other 25 26 27
Sheets not evenly fanned on delivery 26 27 28 29
Folder does not run 30
Sheet gap cannot be set although display
indicates changes in sheet gap
31 32
No: Possible Cause:
1 Guide bracket set too narrow
2 Gap between feed- and pressure
roller too narrow
3 Infeed roller pressure insufficient or
infeed roller worn
4 Hold-down pressure too high
5 Feed shaft drive belt worn
6 Infeed roller pressure too strong
7 Speed too high
8 Paper runs at an angle
9 Pressure of first pair of folding
rollers too strong or uneven
Remedy:
Set with a little more side play
Increase gap with setting disk
Increase pressure with knurled nut on
feeder or replace roller
Slide the hold-down disks on the feed
shaft outward somewhat
Replace belt
Reduce with knurled nut
Reduce speed
Correct with guides
Have pressure and parallel alignment
set by our service engineer