JRC JMA-5312-6 Instruction Manual page 399

(4) Remove the cover on the left (port) side and remove the five
screws (M5) to remove the fixture.
(5) Remove the four hexagonal screws (M10x40, SW10, and
W10) that hold the motor from both the right and left sides
to remove the motor.
(6) Apply grease to the gear wheel of the new motor.
(7) Install the new motor in the scanner unit and secure it using the hexagonal screws. Tighten the screws
with the specified torque (380 kgf-cm).
(8) After replacing the motor, assemble the unit in the reverse order of the disassembly procedure.
Do not forget to tighten the screws and connect the cables.
8.4 Replacement of Major Parts
Remove the four hexagonal screws
(two screws on each side)
Remove the motor.
8-22
Remove the metal fixture.
Remove th e
five screws.
Apply grease.
Motor gear wheel
8