54
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
three setscrews (A) and CPU board, then slightly
loosen the two setscrews (B) and move the idler in
the direction of the arrow to adjust the belt tension.
Tighten the tow 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)
Idler
Setscrews (B)
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