Roland VersaCamm SP-540V Service Notes page 67

9 Fix the Motor from under the MOTOR BASE.
10 Connect the connector of the Motor cable.
11
Fix the Motor Flange by the 2 SCREWs temporalily.
Fix the SPRING, then tighten up the 2 SCREWs to fix
12
the FLANGE with checking the gears mesh without the
baklash.
Apply a proper quantity of grease (FLOIL G902)
between gears.
3-22
MOTOR BASE
CONNECTOR
SCREW
SPRING