Furuno SC-120 - Manual (Page 19)

2. INSTALLATION
2-5
2. Fix the antenna unit to the post as shown below.
3
2
1
Set the antenna
unit to the flange.
Fix the antennas #1 and #2 on
the fore-and-aft line of the ship,
with the #2 a ntenna forward
of the #1.
Flat washer
Spring washer
Nut
(Torque: 29.58 Nm)
Fastening antenna unit to a post
3. Coat each nut, bolt and washer with silicone rubber for waterproofing.
Coat bolt, nut and
washer completely
with silicone rubber.
Coating bolt, nut and washer with silicone rubber