Raymarine ST5000+, Руководство пользователя

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Chapter 5: Installation
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Types of steering system
There are three basic types of hydraulic steering system:
• Two line system
• Three line system
• Two line pressurised system
Typical connection points for autopilot pumps are illustrated for each
type.
In all cases it is strongly recommended that you consult the steering
gear manufacturer.
All hoses used to fit the pump should match, or exceed, the
specification of those used in the existing steering system.
Make sure the helm pump is fitted with reversing check valves. If
reversing check valves are not fitted, the autopilot pump will drive the
helm pump in preference to moving the ram.
Single helm pump systems without check valves should incorporate
the Z068 double pilot check valve block. This is installed as shown.
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