Alamarin Jet AJ 340, Руководство по эксплуатации и обслуживанию

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Problem situations
Operation and maintenance manual
38 KHO/340/EN/1.0.0.
WARNING!
The jet is designed to run in reverse only for one minute at a
time and at under 1,500 rpm. This is usually enough to clear
the blockage.
Too heavy a load in reverse gear can lead to the breaking
down of hydraulics.
Boats without a gearbox
If the boat has no gearbox, cleaning the jet may require several phases.
Cleaning the jet:
1. Stop the engine.
This usually helps drop any extraneous objects from the grass rake.
2. Let the engine run on high revolutions for a few times.
This often sucks the extraneous objects through the jet and cleans it.
3. If the boat is moving ahead, raise the speed of the boat as high as possible
and then shut down the engine.
The speed of the boat often sweeps the grass rake clean.
4. Drive the boat in reverse as fast as possible. As the boat moves astern,
shut down the engine and move the deflector control lever to the forward
position.
This causes water to flow backwards through the jet and usually opens all
kinds of blockages.
Difficult blockages
If the aforementioned measures do not remove the blockage, you can locate
the blockage through the jet's inspection hatch and remove it manually.
Removing a blockage through the inspection hatch:
1. Open the inspection hatch (figure 34).