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HTX30 Product Manual
Precautions against corrosion
If the jet unit is exposed to salt spray, corrosion is likely to become a problem.
HamiltonJet recommends the following precautions:
Liberally grease rod ends and linkages with water resistant grease.
Wrap anti corrosion tape (e.g. Nippon Denso) around the hydraulic fittings.
Hydraulic fittings manufactured from stainless steel are available from HamiltonJet.
Protect the blue ARROW modules and connectors from contact with water and water spray, especially
saltwater by using appropriate shields or covers.
Do not allow water to accumulate on the modules and connectors.
Control input devices & station control panels can be mounted on exposed wing stations, but these
should be protected from immersion, spray and direct sunlight.
Engine start interlock by-pass
In the unlikely event of a complete control system failure, the engine start interlock will
prevent the engine from starting.
This will leave a single jet vessel with no means of propulsion.
A bypass switch must be fitted across the engine start interlock relay to allow the engine to start.
Alternatively, a relay with a manually lockable test option (for example, Omron MY2IN ) can be used as the
engine start interlock relay.
Refer to the appropriate engine schematics for details.
This bypass switch is optional for twin jet vessels.
3-5
System Design
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