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Section 21 Maintenance & Inspection
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21.5.2.2 Magnetron
replacement
procedure for radar antenna
NKE-1130/A
1
Turn Off the safety switch of the radar antenna.
When replacing a
magnetron, 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 (stern) side of the radar
antenna.
Remove the cover and turn Off (to
the lower side) the safety switch.
2
Remove the cover.
The magnetron is mounted on the
left side (port side) of the radar
antenna. Remove the left side
cover.
The cover is secured in place with
hexagon head bolts (M8, designed
to be protected from falling out) at
eight positions.
After removing the cover, place it
in a safe area.
Exercise care to avoid dust or
other foreign matters adhering to
the packing.
Eight hexagon head bolts
Safety switch
