Furuno CH-300 Installation Manual page 22

1. MOUNTING
The table below shows tank length and necessary shim thickness. In addition,
the shim thickness shown is for one side. For example, when cutting the 1800
mm tank to 800 mm, the tank inside diameter is 191.25 mm, and shim thickness
is 2.5 mm as shown the table in below.
1800
1600
1400
1200
1000
800
600
400
200
0
189
The table below shows number of shims required and shim thickness.
Shim thickness 0
t2.0
t1.0
t0.5
Inside dia of tank 188.1 188.7
1-14
190 191
Tank inside dia. Φ B (mm)
0.5 1 1.5 2
1
1 1
1 1
189.3 189.9 190.5
192
2.5 3 3.5 4
1 1 1 2
1 1
1 1
191.1 191.7 192.3 192.9
8
7
6
5
4
3
2
1
0
193 194
For 1 m tank
For 1.8 m tank
Shim thickness
4.5 5 5.5
2 2 2
1 1
1 1
193.5 194.1 194.7 195.3
6 6.5
2 2
2 2
1
195.9