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1) Tightening the feeding belts
The feeding belts transport the sheet into the machine. The feeding belts are driven by the feeding roller. If the contact of the feeding belts with this feeding roller is unsatisfactory, the belts will slip, which results in a poor sheet transport. In this case, it is necessary to tighten the feeding belts.
WARNING
Only do this when the machine has been stopped, cooled down and the main switch has been locked in position "0".
In order to tighten the feeding belts, you first have to unscrew a number of bolts.
First loosen the bolt B1 one turn (1x on the left side and 1x on the right side of the machine) (see B1 on the following page). Then loosen the bolts B2 one turn (2x on the left side and 2x on the right side of the machine) (see B2 on the following page). Attention: the back bolts B2 are situated underneath the hand protection plate. These bolts can be reached by means of a wrench.
Now the feeding bed is loose, you have to tighten the back part of the feeding bridge. Do this by tightening the hexagon socket screws, using a socket head wrench with wrench width 6 (see T on the following page), until the belts are tightened sufficiently.
These screws (see H_S on the following page) are each situated behind a cover plate and they are accessible through a hole at the front of the stainless steel cover plate above the feeding roller, at the left and right of the machine.
ATTENTION
The cover plates do not have to be removed in order to be able to tighten the feeding belts.
After the belts have been tightened, you first have to tighten bolts B2, then bolts B1.
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