JRC JMR-92 Series Field Service Manual page 299

Step 4 Replace the encoder
Remove the metal fixture and the gear wheel attached to the encoder. Put them onto the new
encoder and put it back into the unit. After replacing the encoder, follow the disassembly
procedure in the reverse order. Do not forget to tighten the bolts or screws, and make sure that the
cables are connected.
Step 5 Operation check
After completing the replacement work, turn On the safety switch and check operation by
following the procedure below.
(1) Turn On the Display unit. After the countdown is completed, start transmission and check
that the radar image appears without error. Open the service engineer menu to perform
azimuth adjustment.
This completes encoder replacement.
Remove the nut
Encoder
Metal fixture
Remove the three screws.
4-79 Chapter 4 Replacement procedure