System Pressure Test; Interference Checks - Dometic SeasStar Power Assist Installation And User Manual

4-8
20°
Figure 4-18.
4.3.3

System pressure test

Turn the helm to hard over, then force the helm another quarter to half
turn past the stop point.
✓ This will pressurize one side of the system to the helm relief pressure.
The helm relief will make noise when the relief valve operates — this is
normal and not harmful to the helm.
Look for any evidence of leaks at the helm fittings, P/A fittings, and
cylinder fittings.
Repeat this test in the other direction.

Interference checks

4.3.4
All systems
Check that the steering cylinder can be fully stroked lock-to-lock in
both directions.
Check there is no stretching, chafing, rubbing, or kinking of the
hydraulic hoses.
Confirm that nylon tubing has not been used in place of SeaStar or
SeaStar PRO hydraulic steering hose (tube is only acceptable in the
compensating line between the helm and P/A).
WARNING!
Stretched, kinked or chafed hose will fail over a period of time.
Outboard systems
Check that there is no interference between the steering cylinder(s) and
the transom, splashwell, jackplate, tiebars, or any combination of these.
With the engine fully tilted down, turn the steering wheel from hard
over to hard over and confirm there is no interference.
Repeat with the engine(s) tilted up, and with engines in alternate
tilt positions.
If your engine(s) are mounted to jackplate(s), repeat these checks at
the top and bottom positions of the jackplate.
VERTICAL
1/2"
(12.5 mm)
EN