36
b) X-conveying timing belt
①
Check the X-conveying timing belt tension by detaching the upper cover of X fixing frame from the body of the
machine and using sonic belt tensiometer.
②
Adjust the X-conveying timing belt tension by moving the X conveying frame
①
to the left end and then flipping with
fingers or sticks the middle of the belt that stretches from the end of the timing belt fixing plate block
②
to the X-final
operating pulley
③
. Make sure that the measured value of the sonic belt tensiometer is 26 ~ 27kgf.
③
Input data for the sonic belt tensiometer, when adjusting X-conveying timing belt tension.
Weight: 3.8gf/m
Wide: 35mm/#R
Span: 566mm
④
In order to adjust X-conveying timing belt tension, unfasten the nut
⑤
fastened on the tension adjusting bolt
④
and
unfasten the bolts
⑦
(four) that fix the final operating pulley bracket to the extent that the bracket
⑥
can move.
⑤
Turn the tension adjusting bolts
④
clockwise. Then the final operating pulley
③
and the final operating pulley bracket
⑥
will be pushed into the direction of the bolt, which leads to the increase of tension of timing belt. And turning the bolts
④
counter_clockwise will decrease the belt tension.
⑥
After adjusting tension of the belt, fasten nuts
②
and fixing bolts
⑦
firmly.
⑦
Fasten
⑥
using the four bolts which tighten the bracket.
②
⑦
⑥
①
③
⑤
④
[Caution]
Turning tension adjusting bolts
④
without unfastening fixing bolts
⑦
will lead to physical damages to the machine.
[ Fig. 51 ]