ELNA 9900 - Replacing the Timing Belt

47
elna 9900
5mm
Adjusting the Timing Belt Tension
1. Remove the spool stand, static head right cover and
left cover (see pages 4 – 6).
2. Place a scale on the DC motor. 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 5 mm.
3. If the belt tension is too tight or loose, remove the
3 setscrews (A) and CPU board, then slightly loosen
the 2 setscrews (B) and move the idler in the direction
of the arrow to adjust the belt tension.
Tighten the 2 setscrews (B) securely and check the
tension again.
4. Attach the parts removed in step 1.
Push-pull gauge Timing belt
CPU board
Setscrews (A)
Ideler
Setscrews (B)
Connectors