
6 Holland Marine Parts / MasterCra | Installaon manual and user guide
User Guide Jet Thruster Holland Marine Parts
JT-30
Your vessel is equipped with a Holland Marine Parts electric Jet Thruster. For the safe and correct operaon of this system Holland
Marine Parts recommends every user to carefully study this operang guide. Familiarise yourself with the system by trying it out
in various weather condions. The windage and draught as well as the weight of your vessel are factors contribung to how well
the system operates.
Warnings:
• The Jet Thruster is not a replacement of the main controls but assists with the execuon of dicult manoeuvres.
• Familiarise yourself with the way your vessel responds to your operaon of the system.
• The electric motor produces heat. The thermal protecon limits connuous operaon to about 4 minutes.
• The water inlet is located on the boom of your vessel. Inquire about the exact locaon of the water inlet grang.
• Prevent the system from sucking in large amounts of sand and dirt.
Do not acvate it when you have less than 30cm (12”) of ground clearance.
• The nozzles of the Jet Thruster are located beneath the water line.
Do not acvate the system and do not operate the Jet
Thruster when there are people, animals or vulnerable items in the vicinity of your vessel and the inlet and orices.
• Close all the valves when you are not aboard. Inquire about the local regulaons in ports with regard to closing the valves.
Operaon:
You operate the Jet Thruster by acvang the system on the front plate of the control panel by pressing the
buon (A). This switch is illuminated in blue when the system is acve. Operate the Jet Thruster by moving the joysck (B) le or
right, moving the bow or stern to port or starboard, respecvely. When equipped with push buons, the same procedure
applies, the push buons being illuminated in green or red light.
Duraon of acvaon:
Prevent the use of many short pulses. Instead, move your vessel by means of pulses that last a few seconds.
The eciency of the system is determined in part by the baery capacity present. The overheang protecon will acvate when
the system is acve for an extended period of me. Aer the engine has cooled suciently this protecon is removed.
The cooling me is determined in part by the ambient temperature.
Winterising:
Drain water from the system, before it has the chance to freeze and damage the Jet Thruster system
A
B
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