Roland SOLJET Pro III XC-540 Service Notes page 116

Turn off the Sub Power SW and Main Power SW.
5
Separate the Tool Carriage from the Head Carriage.
6
Loosen the 2 Fixingscrews as shown in the figure
7
located leftside of the Belt.
And loosen the Adjustment Screw.
Loosen the 4 screws as shown in the figure to remove the
8
Carriage Belt.
Do not to scratch the Encoder Scale when
replacing the Belt from the Carriage or move the
Belt Holder.
If the grease of the Belt adheres to the Encoder
Scale, printing could be defective.
Main Power SW
< Rear view >
Tool Carriage
Adjustment Screw
3-54
Head Carriage
< Top view - Leftside of the Belt >
Fixingscrew