AGFA 1 - Manual (Page 18)

: ANAPURNA XL² OPERATOR MANUAL
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7.2. Belt Tension control
The belt tension is of key importance to get a reliable media transport; After some
usage, the belt loose its tension, and the user has to correct the tension to bring it
again to the initial tension. At least once a month, the user has to check and correct
the tension. Guideline is that the belt is put under such high tension that a user can
shuffle his hand for not more than 50-to-80% of the finger length in between the belt
and the vacuum table (at front side).
If he can put the hand further under the belt, the belt needs re-tension:
- remove the metal covers on the backside (both left and right),
- rotate the screw at the REAR stand to CW (clock wise) to put the tension higher
Do this correction with the same numbers of turns left and right.
Unequal tension:
- if the tension left and right is different, the belt can shift to one end of the roll. This
can be seen when looking to the hourglass shaped side rolls underneath the vacuum
table: if the belt touches the guider and curls up, the belt has to be re-aligned.
The way to do that is explained in the next paragraph.