1. INSTALLATION
1-14
• The reinforcement ribs must be installed diagonally shown in the following fig-
ure.
2. Referring to the outline drawing, drill eight mounting holes (16 mm) in the mount-
ing platform.
3. If two insulation sheets (type: 03-183-
3106) are supplied in the installation ma-
terials, place these sheets as aligned with
eight mounting holes. If the insulation
sheets are not supplied, go to next step
because the sheets have been attached
on the antenna unit already.
4. Place the Antenna Unit on the mounting
platform, then orient the unit so the bow
mark on its base is facing the ship’s bow.
Note: When the Antenna Unit is placed on the platform, make sure that the plat-
form is not inclined.
5. Fasten the Antenna Unit to the mounting platform with M1270 hex bolts, nuts, flat
washers, spring washers and seal washers (supplied). The torque must be 49
N•m. Fasten the double nuts, referring to the installation guide (C3900Y01) at the
back of this manual.
Note: The bolts can also be inserted from the underside of the platform.
Mounting holes
(eight places)
Mounting holes
(eight places)
Insulation
Sheet S
FRONT
Bow mark (▼)
Bottom of platform
Over 15 mm
Diameter:
Over 250 mm
Thickness:
Over 6 mm
The reinforcement
ribs must be
installed diagonally.
Mounting platform
Be careful not to get
welding splatter on nuts,
bolts, etc. on the mounting
platform.
M12×70 (eight places)
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