JRC JMR-92 Series Field Service Manual page 298

Step 2 Remove the terminal block
Remove the cover from the right (starboard) and remove the screws (four M5 screws) to remove
the terminal block.
Step 3 Remove the encoder block
Loosen the two screws (M4) to remove the encoder together with the metal fixture.
Chapter 4 Replacement procedure
Remove the four screws.
Encoder
4-78
Terminal block
Encoder
Loosen the two screws.
Metal fixture