Hamilton Jet HJ212, Инструкция по установке и обслуживанию

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Installation and Service Manual
Appendix
Using the inspection cover
Before removing an inspection cover:

Stop all engines.

Check that the static water level will be below the inspection cover lip.

If the static water level is too high, ballast should be placed on the bow to raise the stern
high enough to allow the inspection cover to be removed.

Alternatively, an optional hatch extension/overflow preventer can be fitted to the
inspection hatch opening to allow inspection of the intake at higher water levels.
Overflow preventer (optional extra)
The overflow preventer is an optional extra for use with jet units where the water level (when the vessel is
fully laden) is above the normal level of the main inspection cover.
It is attached to the top of the intake around the outside of the main inspection cover.
Operating With an Engine and Jet Unit Out of Service
If the vessel is operated with an engine and jet unit out of service, it is possible for the mainshaft to rotate
due to water flowing through the jet unit. This can lead to damage of the gearbox.
Use of shaft brake (if fitted) to stop mainshaft rotation:
The shaft brake should be fitted to the output shaft of the gearbox. Apply the shaft brake to stop the
mainshaft rotating in jet units not in service.
Use of engine to stop mainshaft rotation:
If a shaft brake is not fitted, the jet unit mainshaft can be prevented from rotating by engaging the gearbox
of the engine which is out of service.
When using this method, it is possible for the jet unit to rotate the engine. If this
occurs, disengage the gearbox and let the jet unit mainshaft rotate.
Shutting down the Jet Units after use

Make sure the vessel is securely moored.

Before shutting down the engine, centralise the steering nozzle and move the reverse lever to the zero
speed position. This ensures an orderly and fast start-up for the next time the vessel is used.

Disengage the jet unit from the engine by selecting "neutral" on the gearbox(es).

Shutdown the engine(s).
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