Furuno SEARCHLIGHT CH-250 User Manual
Page 23
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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, shim thickness is 2.5 mm as shown the table in below.
0
200
400
600
800
1000
1200
1400
1600
1800
189
190
191
192
193
194
Tank inside dia. Φ B (mm)
L
e
n
g
th
A
(mm) t
a
n
k sh
o
rt
e
n
e
d
0
1
2
3
4
5
6
7
8
Shim thickness (mm
)
For 1 m tank
For 1.8 m tank
Shim thickness
The table below shows number of shims required and shim thickness.
Shim thickness
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
6.5
t2.0
1
1
1
1
2
2
2
2
2
2
t1.0
1
1
1
1
1
1
2
2
t0.5
1
1
1
1
1
1
1
Inside dia of tank 188.1
188.7
189.3
189.9
190.5
191.1
191.7
192.3
192.9
193.5
194.1
194.7
195.3
195.9