9
Height:
Approx.
1600 mm
600 mm
1000 mm
1000 mm
400 mm
Shaft protrudes
above hull unit
CH181-270
CH184-270
Approx. 5 cm
1.3.3 Mounting the retraction tank
Mounting method
Careful attention should be paid to safety
(strength, watertightness, etc.) of the tank and
also the ease of maintenance and checking. In
the off-the-keel installation, it is recommended
that the retraction tank protrude through the
hull down to 5 cm above the keel for
minimizing the effects of air bubbles.
Determining tank length
The mounting method determines the
necessary tank length “Lt,” and any
excess portion should be cut. In addition,
the tank length is necessary as the
reference value for cutting the main
shaft, so make a note of the length.
CH-181-270 (350 mm stroke)
It is not necessary to cut the main shaft
or tank when the standard combination
(main shaft: 1.17 m, tank: 1 m) is used.
If you wish to position the top of the tank
above the water line, use the optional
2.2 or 3.8 m long main shaft. In this case,
determine the shaft length (Ls) and the
tank length (Lt) as follows: Ls = Lt + 170
mm
CH-184-270 (250 mm stroke
It is not necessary to cut the main shaft
or tank when the standard combination
(main shaft: 1.17 m, tank: 1 m) is used.
However, the shaft protrudes slightly
above the hull unit. If it is necessary to
position the top of the tank above the
water line, use the optional 2.2 m long
main shaft. In this case, determine the
shaft length (Ls) and the tank length (Lt)
as follows:
Ls = Lt - 17 mm
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