JRC JMR-92 Series Field Service Manual page 333

Bow side
Turn Off the safety switch.
Loosen the hexagonal bolts
Example: Starboard side cover removal
Step 2 Remove the transmitter-receiver unit.
Remove the cover on the right (starboard) side, remove the cables connected to the
transmitter-receiver unit and the screws (three M5 screws) holding it in place, and then remove it.
4-113 Chapter 4 Replacement procedure