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It is very important that the E-Air motor and the propeller
shaft are in line. Check the alignment again when the boat is
in the water.
Correct adjustment of the vibration dampers can be achieved as fol-
lows:
• Set up the motor so that it is more or less in line with the propeller
shaft, using the adjuster nuts on the vibration dampers, do NOT
yet connect the propeller shaft with the hub of the coupling.
• Lift the motor at the front so that both front supports just come
free of the vibration damper nuts.
• Lower the motor again and adjust the nuts so that both motor
supports rest on the nuts at the same time.
• Repeat this at the rear end of the motor.
• When the vibration dampers have been adjusted correctly, the
motor can be aligned by turning both the adjuster nuts fore and
aft, left and right, exactly the same number of turns.
• Tighten the nuts to the torque indicated.
5
Propeller shaft installation
5.1
Propeller shaft coupling
Connect the E-Air motor to the propeller shaft using a flexible cou-
pling type VETUS Combiflex (1225/1230) or Bullflex (0120/0125).
5.2
Propeller shaft
The propeller shaft should have a diameter of at least 25 mm.
Because of the axial movement of the propeller shaft, there must be
a minimum free space between:
- The outer bearing and the propeller hub,
- The inner bearing and the coupling hub.
• Lock the propeller shaft cap nut with a lock plate.
5.3
Propeller aperture
- The space between the tips of the propeller blades and the bot-
tom of the boat should be at least 15% of the propeller diameter.
14
371102.11
n
ote
A
A = A
A
M12 x 1.75
- The distance from propeller hub to outer bearing must be at least
10 mm (3/8"), but not more than 60 mm (2 3/8").
- It is useful when working on the motor if the shaft can be pushed
about 10 cm (4") backwards.
- The water must be able to flow freely over a distance of at least 10
cm (4") forward and aft of the propeller.
5.4
Propeller
Design of the propeller and propeller aperture are very important for
the cruising characteristics of the vessel. It is especially important for
a vessel with electrical propulsion that the propeller size is selected
correctly.
Consult your VETUS dealer to choose the correct propeller.
You can choose for both a left and right turning screw. Via the con-
trol panel, the direction of rotation of the motor can be linked to the
movement of the control, so that forward operation also results in
forward movement of the boat.
Installation manual E-Air electric propulsion
B
B
B = B
75 Nm
(7.7 kgm, 55.3 ft.lbf )
0.15 D
D
0.15 D
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