Section 15 Maintenance & Inspection  15-30 
 
Remove the motor. 
 
Apply grease to the gear wheel of the 
new motor. 
 
Install the new motor in the radar 
antenna. 
 
Fasten the hexagon head bolts with 
proper torque (380 kgfcm) to ensure 
that none of the bolts is left without 
being tightened or tightened too 
loosely. 
 
5  Connect the motor cables. 
Connect each cable back to its original position on the motor driver circuit. 
6  Install the cover. 
Before installing the cover on the radar antenna, check to confirm that there are no 
deformations, cracks or other abnormalities in the packing of the cover. Remove any foreign 
matters, dust or other contaminants if found. 
Leaving any hexagon head bolts without tightened, or tightening them too loosely, may result in 
the waterproof performance of the radar antenna being adversely affected.  Fasten the 
hexagon head bolts with proper torque to ensure that none of the bolts is left without being 
tightened or tightened too loosely. 
 
When the motor replacement is complete, turn on the safety switch of the radar antenna and check if 
the equipment operates properly.