MBM Corporation 352SA automatic air suction folder with Register System - Manual (Page 64)

Operator's Manual multimaster CAS 35 PBA
Mathias Bäuerle GmbH 65
16. Possible Malfunctions and their Remedies
Error: see no.
Intermittent and irregular paper feed 1 2
Creasing 3 4 5 6 7
Several sheets are fed together 8 9 10
Sheets are not transported up to fold plate stop 11
Feeder does not start 12 13 14
Skewed folds 15
Points 16
Fold variations 17 18
Paper jam in delivery section 19 20 21
Folder does not start 22
No. Possible Cause Remedy
1 Air brackets are set too narrow Set with a little more side play
2 Vacuum too low Increase vacuum by opening the corres-
ponding valve a little more
3 Speed too high Reduce speed
4 Sheets are not fed at right angles Align register rail
5 Pressure of first pair of fold rollers Have pressure and parallel alignment
too strong or uneven set by service technician
6 Too many steel balls in ball cage Use more plastic balls
of register rail
7 Insufficient guidance by balls Shift ball cages
8 Front paper stop is not set to the Change height by means of setting screw
correct height
9 Vacuum too strong Reduce vaccum