MAX Power CT325 Electric Tunnel Thruster - Manual (Page 6)

Manual CT325 April 2008
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4. ELECTRIC MOTOR (12 / 24 volts)
The upper coupling (motor side) is adjusted in the factory. Position the lower coupling on
the drive leg shaft and push it down as far as it will go (lightly grease the shaft
beforehand).
Place the flexible red coupler on the drive leg side coupling, (part n° 5 on the CT325 –
Spare Parts diagram, page 13)
Now fit the electric motor onto the motor support and tighten the four 12mm Ø motor
support screws alternatively (maximum torque: 40Nm).
Push the lower coupling up into place using a screwdriver et tighten the two 4 x 10mm
Allen screws (maximum torque: 10Nm).
The upper and lower couplings must be adjusted to leave 2mm of play (+/- 1mm)
between both of them.
Check that the propellers turn without resistance (a little resistance due to the motor is
normal).
Ensure that air can flow freely to allow the motor to cool whilst in operation.
Please note that the motor side coupling is already in position and does not need
adjusting.
5. PROPELLERS
Insert the drive pin and propellers.
Check that the propellers turn without resistance (a little resistance due to the motor is
normal).
Check that the oil change screw and the anode are in place and correctly tightened.
Position the propeller blades so as they are not in horizontal alignement and not
directly opposite each other.
Tighten the 24mm nut (maximum torque: 30Nm) while holding the propellor tightly with
your hand.
Protect your hands during this operation to avoid risks of injuries caused by the edges of
the propeller.
IMPORTANT:
to prevent against calcium deposits that damage the seals, we
recommend that you coat the shaft and stainless steel cover with silicon grease.
6. PROTECTION GRIDS
It is possible to install protection grills; however installation of such grills will affect
thruster performance.
7. ELECTRICAL INSTALLATION
CAUTION:
an incorrect electrical installation will cause rapid deterioration or even failure
of the thruster. Excessive voltage drop will cause premature wearing of the relays and
brushes. Special attention should be given to the quality, capacity and condition of your
batteries, aswell as cable sections used.
Ensure that all electrical connections are correctly tightened.
Under no circumstances should any flammable products be stored next to the
electrical components of the thruster.