Roland SOLJET Pro III XC-540 Service Notes page 194

Remove the Front Rail Cover and Top Cover.
5
Measure the tension of the belt at the position above
6
the center of the 4th grit roller from the left using
TENSION GAUGE(ST-001).
Press the upper belt downward with the gauge to make
slight contact with the lower belt. The tension is proper
when the measured value is 0.96kgf to 1.18kgf.
When the tension is not proper, move on to the next
step and adjust the belt tension.
It is recommended to put the SOLENOID
CUSHION(P/N 22265241) on the top of the ST-
001 for easy measuring.
Loosen the two fixing screws which is located on the left
7
end of the belt halfway round.
Be cautious with the sharp edges around the
belt when loosening the screws. It may
cause injury.
FRONT RAIL COVER
<Front side>
<Top view>
4-63
TOP COVER
Upper Belt
Hold down the belt
with Tension Gauge
Lower Belt
The center of the 4th
Grit Roller from the left
LEFT END OF THE BELT
FIXING SCREW