Furuno MARINE RADAR 1823C Installation Manual page 24

4. Pass flat washers (M12, supplied), spring washers (M12, supplied) and nuts (M12,
supplied) onto hex bolts. Fasten by tightening nuts. Do not fasten by tightening the hex
bolts; seal washers may be damaged.
5. Coat flat washers, spring washers, nuts and exposed parts of bolts with anticorrosive
sealant.
6. Prepare ground point in mounting platform (within 300 mm of ground terminal on
antenna unit) using M6 x 25 bolt, nut and flat washer (supplied).
7. Run the ground wire (RW-4747, 340 mm, supplied) between the ground terminal and
ground point.
8. Coat ground terminal and ground point with silicone sealant as shown on the next page.
1-14
Fixing the antenna unit chassis
Seal washer
Rubber mat
Flat washer
How to fasten antenna unit to mounting platform
Hex bolt
Seal washer
Flat washer
Spring washer
Nut
Antenna
unit
Mounting
platform
Silicone
sealant