Cylinder Choice - Ultraflex UC 69-1 Manuel D'installation Et D'entretien

ULTRAFLEX

1.5 Cylinder choice

This paragraph shows some examples of application for the correct choice of the cylinder
and of its arm (A). The table below shows the arms for each cylinder with four different
sizes (two in inches and two in millimetres) to approach as much as possible the desired
configuration. The necessary torque can be defined according to the steering half angle
(B). The data given are only exemplifying and so they are not binding.
Helm arm
150 mm
UC 69-I
130 mm
180 mm
UC 116-I
150 mm
180 mm
UC 168-I
150 mm
230 mm
UC 215-I
200 mm
180 mm
UC 293-I
150 mm
* concerning the maximum helm ngle position allowable and with reference to the arm chosen.
** The maxium torque usually used is the maximum torque that is not generally exceeded at cruising speed.
WARNING
The maximum torque is not the normally used torque but it is the maximum torque allowed calculated
with a maximum thrust, shown in the table on the next page, applied to the corresponding helm arm.
DANGER
Make sure that the cylinder and not the helm reaches the end of stroke.
page 8
of 71 -
HYDRAULIC CYLINDERS FOR INBOARD ENGINES
A B
Steering half
angle
30°
6" 30°
35°
5" 36°
30°
7" 30°
36°
6" 36°
30°
7" 30°
36°
6" 36°
30°
9" 30°
35°
8" 34°
30°
7" 30°
36°
6" 36°
Installation and Maintenance Manual
C
Installation height
Maximum torque*
at the end of
stroke
130 mm [5.12"] 420 Nm
133 mm [5.22"] 429 Nm
106 mm [4.18"] 343 Nm
102 mm [4.03"] 331 Nm
156 mm [6.14"] 1068 Nm
154 mm [6.06"] 1053 Nm
121 mm [4.76"] 825 Nm
124 mm [4.87"] 844 Nm
156 mm [6.14"] 1546 Nm
154 mm [6.06"] 1524 Nm
121 mm [4.76"] 1194 Nm
124 mm [4.87"] 1221 Nm
200 mm [7.87"] 1977 Nm
198 mm [7.80"] 1962 Nm
164 mm [6.46"] 1626 Nm
168 mm [6.61"] 1665 Nm
156 mm [6.14"] 2709 Nm
154 mm [6.06"] 2668 Nm
121 mm [4.76"] 2089 Nm
123 mm [4.84"] 2136 Nm
Maximum torque
normally used to
choose the
cylinder**
210 Nm
215 Nm
172 Nm
166 Nm
356 Nm
351 Nm
275 Nm
282 Nm
516 Nm
508 Nm
398 Nm
407 Nm
659 Nm
654 Nm
542 Nm
555 Nm
903 Nm
890 Nm
697 Nm
712 Nm