15-33  Section 15 Maintenance & Inspection 
 
 
 
 
 
15.5.3.3  Motor replacement procedure for NKE-2103-4/6/6HS 
1 
Turn Off the safety switch of the radar antenna. 
 
 
When replacing a motor, ensure 
that the safety switch of the radar 
antenna is turned Off prior to 
commencing the replacement work. 
 
The safety switch is located on the rear 
bottom part of the radar antenna. 
Turn Off the safety switch.   
2  Remove the bolts and open the upper cover. 
    The upper cover is secured in place with 
hexagon head bolts (M8, designed to be 
protected from falling out) at four 
positions. 
 
After removing the bolts, open the upper 
cover until the stay metal fitting stopper 
works. 
 
 
   
OFF 
Safety switch 
Four hexagon head bolts 
*Closing the upper cover 
Release the stay metal fitting stopper, 
and then close the upper cover.