JRC JMR-92 Series Field Service Manual page 317

Step 2 Remove the motor.
Remove the cover on the left (port) side and remove the cables connected to the motor driver
circuit board. Remove the hexagonal bolts (four M8 bolts) and remove the motor.
Step 3 Replace the motor.
Remove the hexagonal bolts (four M8 bolts) and remove the installation plate from the motor.
Attach the installation plate to the replacement motor. Do not forget to tighten the hexagonal bolts
to an appropriate torque (210 kgf-cm) so they are free of looseness.
Motor
Remove the four bolts.
Motor
Installation plate
4-97
Disconnect the two cables.
Motor driver circuit board
Four bolts
Chapter 4 Replacement procedure