8-33 
(5)  Remove the hexagonal bolts (four M8 
bolts) and remove the installation plate 
from the motor. 
 
(6)  Attach the installation plate to the 
replacement motor. Do not forget to 
tighten the hexagonal bolts to an 
appropriate torque (210 kgf-cm) so they 
are free of looseness. 
 
 
 
 
(7)  Install the motor into the scanner unit. 
Press the motor against the protrusions 
of the arm fixed to the motor on which 
the arm extends through the wall of the 
casing, adjust it to minimize backlash, 
and fix it in place. 
Do not forget to tighten the hexagonal 
bolts, to an appropriate torque (140 
kgf-cm) so they are free of looseness. 
 
 
 
 
 
 
 
 
(8)  After having installed the motor, grease 
the gear wheel. 
 
 
 
 
 
 
 
 
 
(9)  After having replaced the motor, reassemble the unit by following the disassembly 
procedure in the reverse order. 
Do not forget to tighten the bolts and screws, and do not forget to reconnect the 
cables. 
Make sure that there is no foreign matter or dust adhered to the gasket when you 
put the cover on. 
 
(10)  Turn on the safety switch (do not forget to put the cover back on). 
 
(11) Turn on the radar power supply and check that the system works properly. 
Moto
Motor driver 
circuit board 
Remove the 
four bolts. 
Grease here.
Arm protrusions 
Press 
Tighten the four bolts.