JRC JMR-92 Series Field Service Manual page 292

Step 3 Apply grease to the new motor.
Apply grease to the gear wheel of the new motor.
Step 4 Place the replacement motor.
Place the replacement motor in the scanner unit and fix it in place with the hexagonal bolts.
Tighten the bolts to the appropriate torque (380 kgf-cm), so they are free of looseness. After
having replaced the motor, reassemble the unit following 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 follow the steps below to
check the operation.
1. Turn On the radar. After preheat countdown is finished, start transmission and check that
the radar image is correctly displayed. Check that the motor does not make any
abnormal sound when it starts to rotate, while it is rotating, or when it stops.
2. Open the service engineer menu and initialize the motor rotation time.
This completes motor replacement.
Chapter 4 Replacement procedure
Apply grease.
Gear wheel
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