electric transmission disengagement clutch |
Jefa series 100 & 200 electric transmission disengagement clutch. |
Main dimensions: |
Mounting limitations: |
This illustration shows the minimal length needed to integrate the electric clutch into the transmission system. |
This illustration shows the integration of the electric clutch into the transmission system. |
The construction: |
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The above cross section shows the construction of the
electric clutch. Under normal power off circumstances (as in the above
illustration) the clutch pin, which is connected to the right shaft, is
connected to the left flange and shaft. All forces are now transmitted
through the unit with a neglectable amount of friction and play.
As soon
as the unit is powered, only 0.7 amps (12 & 24 volts) is enough to disengage
the clutch pin. Both flanges are now not engaged any more so the right shaft
can rotate independently from the left.
Configuration: The electric clutch
should be operated by a seperate button near the pedestal and should not be
automatically switched by the autopilot. Standard the electric clutch has
one clutch pin hole, so there is only one engagement position in 360°
rotation. The advantage is when the steering wheel has a mark for the
amidships position, after disengaging, the steering wheel will always come
back in this position. The disadvantage is that it could take a small while
to find the engagement point. Especially in a panic situation, it could take
a while before the mechanical steering is engaged again.
The solution for
this would be to order the unit with 6 engagement points (every 60°). This
way it will be much easier to find the engagement point. To set the wheel in
the amidships position could be done while cruising slowly without sail or
engine drive, disengaging the steering, rotating the wheel with the mark
upwards and engage again.
Jefa electric transmission disengagement clutch |
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Part No. |
Description |
|
DU-ECL1-12 |
Electric clutch for type 100 transmission systems 12 volts |
|
DU-ECL1-24 |
Electric clutch for type 100 transmission systems 24 volts |
|
DU-ECL2-24 |
Electric clutch for type 200 transmission systems 24 volts |
Service information: |
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Please click the left picture to open the electric clutch drawings with parts list. |