Roland VersaCamm VS-640 Service Notes page 255

Loosen the two Fixing Screws located at the left end of the
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belt eighth to quarter round.
When the screw is loosen more than necessary, it
gives diffi culty in adjusting the belt. Also, you need
to be careful with the sharp edges around it when
turning the screws. It may cause injury.
Insert a wrench through the holes on the Side Frame and
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loosen the two screws to make a gap of three millimeters
between the tip of the screw and Idle Pulley Holder.
The gap between the screws and Idle Pulley can be
seen from both front side and rear side of the ma-
chine
Press [ENTER] key to restart Aging.
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Insert a wrench through the holes on the Side Frame and ad-
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just the belt position turning the screw 1 and 2 as follows.
Belt leans to the front side of the machine
-Turn the screw 1 carefully in CW to press it to the Idle Pulley
Holder.
* Make sure to have a gap of three millimeters between the
screw 2 and Idle Pulley Holder when turning the screw 1.
Screws
AGING
SCAN
Screw 1
Screw 2
4-57
Fixing Screw
Fixing Screw
3mm
Idle Pulley Holder
[ ]