Alamarin Jet AJ 340, Operation And Maintenance Manual

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Operation
Operation and maintenance manual
KHO/340/EN/1.0.0. 9
Figure 4. Steering device
Steering is possible only when the power of the jet flow is sufficient. This is
why the engine must run on sufficiently high revs when steering. A suitable
number of revolutions depends on the engine. Usually it is between 500 and
1,000 rpm.
In sharp curves, turning the nozzle causes the boat to slow down. This is
normal and increases safety.
Turning the nozzle from one extreme position to the other takes between
1 and 3 revolutions of the steering wheel, depending on the capacity of the
steering pump used.
3.3. Controlling
Controlling denotes exclusively moving the reversing deflector. Controlling
means changing the boat's driving direction (forward–astern). The reversing
deflector is moved with the lever, which is usually next to the throttle lever.
The lever controls the hydraulic system mechanically (the cable operates the
cylinder valve)
The reversing deflector can be lowered in front of the jet flow using
hydraulics, causing the boat to reverse (figure 5).