Page84Alterations reserved Version 05/2008
Operating Manual B21-C - en
7.3.2 Knife folding unit “X” as 2nd crossfold (threefold)
If this unit should be used as threefold unit (configuration 44X), i.e. after the 2nd folding unit, the
sheets must run centrally beneath the folding knife in knife folding unit “X”. In order to ensure a
safe transfer of the sheets from the 1st folding unit to the guide rail of the 2nd folding unit a
conveyor table (option) must be installed on the exit of the 1st folding unit (see page 89)
7.3.3 Foldrollers / Slitter shafts of the knife folding unit “X”
In order to achieve the required setting of the rollers you should press the lever 2 at caliper setting
element 5 and insert a strip of paper 4 between the pressure plate 6 and pressure bar. Afterwerds,
turn the handwheel of the machine and, in doing so, check whether the paper strip goes through
the foldrollers.
When you turn the knurled screw clockwise the pressure on the foldrollers becomes less, but if
you turn knurled screw counter-clockwise, the pressure on the foldrollers has increased. After this
basic setting, reset the adjusting ring 3 to 0-position in order to enable a quick readjustment of
foldrollers into their original position. The setting of the slitter shafts occurs in the same manner.
Depending on the kind of fold you may now insert the paper strip to achieve the desired paper
gauge between the pressure plate and pressure bar.
The slitter shafts 7 of the knife folding unit “X“ are positioned beneath the foldrollers and are easily
changeable through the quick setting elements 8 (see B5.0 on page 69)
MBO setting instructions of the most commonly folds will follow on pages D1-D3.
Danger of running machine parts.
Negligence can cause heavy personal injuries or extensive damages.
• Never carry out foldroller settings while machine is still running.
• Even manual foldroller setting by the handwheel.
:$5181*
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