Roland VersaCAMM VP-540 Service Notes page 198

Confirm the belt position.
4
The position is proper when the belt is not touching the
flanges of the Drive Pulley excessively. When the position
is proper, skip this adjustment and go to [ADJUSTMENT
ON THE IDLE PULLEY SIDE] described in the later step
of this adjustment leaving the belt aging on. When the
position is improper, make adjustment as follows.
Belt partly touching the flange is acceptable.
Press [ENTER] key to cancel Aging.
5
Remove the Right Side Frame and
6
Chassis Cover.
Loosen the 2 Fixing Screws located on the right end of
7
the belt.
Loosen the screws about a few rounds for the
bottom of the screw head not to contact with
the Stay.
<TOP VIEW(R)>
SCAN
NOW AGING
FIXING
SCREWs
4-57
FLANGE
[ ]
CHASSIS COVER
RIGHT SIDE
FRAME