Furuno 851 MARK-2 installation manual How to fasten antenna unit to mounting platform

Models: 851 MARK-2

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1. MOUNTING

4.Pass flat washers, spring washers and nuts onto hex bolts. Fasten by tightening nuts. Do not fasten by tightening the hex bolts; seal washers may be damaged.

Seal washer

 

 

Antenna

Rubber mat

unit

Mounting

 

 

platform

Flat washer

Silicone

 

sealant

Figure 1-7 How to fasten antenna unit to mounting platform

5.Coat flat washers, spring washers, nuts and exposed parts of bolts with silicone 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.

7.Run the ground wire (RW-4747, 340 mm) between the ground terminal and ground point.

8.Coat ground terminal and ground point with silicone sealant as shown in Figure 1-8.

 

 

Hex bolt

Ground

 

Flat washer

 

Flat washer

terminal

 

 

 

Spring washer

Silicone

OR

Hex nut

 

 

 

sealant

 

GROUND

 

 

 

Hex nut

POINT

 

Ground

 

 

 

 

Spring washer

wire

 

 

Flat washer

 

 

 

 

Hex nut

 

Weld here.

GROUND

 

 

 

 

TERMINAL

 

Silicone

 

 

 

 

sealant

 

 

Ground

 

 

wire

 

 

Antenna

 

 

unit

Figure 1-8 How to coat ground point and ground terminal with silicone sealant

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Page 11
Image 11
Furuno 851 MARK-2 installation manual How to fasten antenna unit to mounting platform