Copper
Tubing
Copper Tubing 3/8" outside diameter
copper tubing is recommended for;
- inboard,
- sterndrive, and
- seadrive steering systems with SeaStar II
(2.4 cubic inch/rev displacement) helms only, or where the length of tubing run exceeds 100 feet (30.5m).
Additional SeaStar hose kit part number HF5508
is required to connect the tubing to the cylinder.
3/8" copper tubing should be obtained
through a local vendor based on the following tubing specifications.
Specification for copper tubing:
Annealed Copper Refrigeration Tubing 0.032
wall thickness 3/8" outside diameter
To determine the required
length of tubing for single and dual configurations:
From the illustrations (figures A through C),
select the situation which best suits your application and note;
a) the type of drive system, and
b) the number of steering stations.
Single Station
- From the illustration which best suits your
application note the number of lengths of tubing and fitting kits required.
- Measure along the intended path of tube
routing for each of the tubing runs.
- Determine if 3/8" nylon tube can be
used or if copper tubing is required based on lengths of tubing runs required.
- Total up the entire length of tubing
required and round up to the next available tube kit length.
Figure
A |
|
Single Inboard Cylinder
Fittings required supplied with helm
and cylinder
|
|
 |
Figure
B |
|
Single Sterndrive Cylinder
Fittings required supplied with helm and cylinder
|
|
 |
Parts
List |
For figures A and B |
| Item# |
Description |
Part # |
Quanty
Req. |
|
1
|
3/8"
Dia. Nylon or
copper tube |
1-HT509_ |
As
Measured |
|
Additional Steering Station or
Autopilot Kit
- Refer to illustration Figure C.
- Determine the location of the second
station or autopilot power pack.
- Measure along the path of the tube routing
from the upper helm pump to the second station or autopilot power pack. Multiply this length by three for the
amount of tubing required.
- Select the tubing kit based on the total
system tubing requirement.
Figure
C |
|
2nd Steering Station or Autopilot
- A compensating line
is required between helm stations or the helm and autopilot power pack.
- All hoses should be
routed with a gradual rise (particularly the compensating line) so that air will not be trapped in the
lower helm station.
- The second helm
station or autopilot power pack may be connected at any location between the upper helm station and the
cylinder. For existing single station installations the nylon or copper tubing may be cut and the tee
fittings installed at any convienent location.
|
|
|
Parts
List |
For figures C |
| Item# |
Description |
Part# |
Quanty
Req. |
|
1
2
|
3/8"
Dia. Nylon or
copper tube
Fitting Kit |
1-HT509_
HF5502
|
As
Measured
1 |
|
|