49
elna 9900
3mm
Adjusting the Motor Belt Tension
1. Remove the spool stand, static head right cover, right
cover and left cover (see pages 4 – 6).
2. Place a scale under the stud bolt. Set the push-pull
gauge in line with the scale as illustrated and push
the timing belt. The gauge should read 300 grams
when the belt deflect 3 mm.
3. If the belt tension is too tight or loose, slightly loosen
3 setscrews and move the motor in the direction of
the arrow to adjust the belt tension.
Tighten the 3 setscrews securely and check the tension
again.
4. Attach the parts removed in step 1.
Motor belt
Push-pull gauge
Motor
Setscrews
Stud bolt
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