ComNav Marine 1420 Autopilot System
Types of Steering Systems
There are two general types of steering systems: Two Line systems, and Three Line
systems. The pump connection to the steering system is different for each type. There
are separate instructions below for each type (see pages 28 & 29).
If you are installing this pump on a Capilano or Syten steering system, you probably have
a Three Line steering system. If the helm pump is a Capilano Model 250 or 275 (made by
Teleflex), or there is a Uniflow valve mounted close to the steering cylinder, you definitely
have a Three Line system.
You have a Two Line system if you do not have the above components in your system.
Tools and Material Required to Install Pump
By following the step-by-step procedure here, and using only the basic tools and materials
listed below, you will find the installation easy to do.
Caution
This Pump is not waterproof and is therefore not warranted against water damage.
This Pump is also not warranted against damage caused by improper installation.
1) Pipe Cutter
6) Pipe Fittings (check with steering
gear manufacturer for type & size)
1
2) Funnel with Filter (a coffee filter will
do)
7) Tubing (check with steering gear
manufacturer for type and size
2
)
3) Bucket large enough to hold oil
drained from the steering system. A
2 gallon (9 litre) bucket is adequate
for most pleasure boars.
8) Hydraulic Oil (check with steering
gear manufacturer for type
2
)
9) Teflon based thread sealer (such as
Loctite® PST)
4) Rags or Paper Towels
5) 3/8" Electric Drill
10) Suitable fasteners for mounting the
pump and securing lines
Caution
Using ordinary electric tools near water
is VERY dangerous! To minimize the
dangers of electric shock and personal
injury, we recommend using cordless
rechargeable tools or hand tools.
1
Consult with your steering system
manufacturer to get detailed information about
factory authorized materials. Failure to do so
could void your warranty.
Document PN 29010012 V1.3
25
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