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JMA-9100 Instruction Manual > 8.COUNTERMEASURE FOR TROUBLE ... > 8.4  REPLACEMENT OF MAJOR PARTS
2)  Remove the cover on the left (port) side and 
remove the five screws (M5) to remove the 
fixture.
3)  Remove the four hexagonal screws (M10x40, 
SW10, and W10) that hold the motor from both the 
right and left sides to remove the motor.
4)  Apply grease to the gear wheel of the new 
motor.
5)  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).
6)  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.
Remove the 
metal fixture.
Remove the 
five screws.
Remove the four hexagonal 
screws (two screws on each side)
Remove the motor.
Apply grease.
Motor gear wheel