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Thread: N19 Vibration cause?

  1. #1
    Christian Rasmussen depth is just really nice depth is just really nice depth is just really nice depth is just really nice depth is just really nice depth is just really nice depth is just really nice depth is just really nice depth is just really nice depth's Avatar
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    N19 Vibration cause?

    Hi RW members

    My Silent Submersion N19 is shaking a bit during operation at it is quite anoying. I checked the axle when it spins and it does not seem to be off center. What is the usual cause for this?:

    1. Is one of the blades are damaged or is not pitched at the same angle as the two others?

    2. Do I need to change the motor bearings?

    3. Other?

    Thanks

    /Christian

  2. #2
    Supporting Member Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36's Avatar
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    rEvo

    Defender Optima Dolphin

    Re: N19 Vibration cause?

    If the bearings are bad enough to cause a vibration, then i have to think it would be bad enough for the seal to leak also.

    If any of the blades are damaged in any way this will cause it quickly.

    Troubleshoot it like this:

    1 - Remove the entire clutch hub and blades. Do not run very long out of water. if the vibration is still there, then it is most likely an internal problem. If the vibration is not there, go to #2.

    2 - Replace the hub and blades. Run again for a very short time. If the vibration is there, then there is most likely an issue with one or more of the blades. If the vibration is not there, go to #3.

    3 - Submerge and test again. If the vibration is there, it is either the blades or a problematic clutch.

    Check to see if the ends of any of the blades have hit the shroud. This can cause the ends to wear down and make things off balance. check to see if all the blades run in the same rotation and there is no run out (this could be a worn center hub or pivot on blade).
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  3. #3
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    Re: N19 Vibration cause?

    Quote Originally Posted by Dsix36  View Original Post
    If the bearings are bad enough to cause a vibration, then i have to think it would be bad enough for the seal to leak also.

    If any of the blades are damaged in any way this will cause it quickly.

    Troubleshoot it like this:

    1 - Remove the entire clutch hub and blades. Do not run very long out of water. if the vibration is still there, then it is most likely an internal problem. If the vibration is not there, go to #2.

    2 - Replace the hub and blades. Run again for a very short time. If the vibration is there, then there is most likely an issue with one or more of the blades. If the vibration is not there, go to #3.

    3 - Submerge and test again. If the vibration is there, it is either the blades or a problematic clutch.

    Check to see if the ends of any of the blades have hit the shroud. This can cause the ends to wear down and make things off balance. check to see if all the blades run in the same rotation and there is no run out (this could be a worn center hub or pivot on blade).
    Thanks mate, I will test it later this week.

    I tried searching the web for a exploded view of the scooter but no luck. Any chance you got one?

    regards

    Christian

  4. #4
    Supporting Member Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36's Avatar
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    rEvo

    Defender Optima Dolphin

    Re: N19 Vibration cause?

    Only this one:

    PROPELLER AND HUB

    Also, check the shafty for play when the hub is removed.
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    Quote Originally Posted by kwinter  View Original Post
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    POLITICAL CORRECTNESS IS SO YESTERDAY AND I AM DONE WITH IT!!!!!

  5. #5
    Christian Rasmussen depth is just really nice depth is just really nice depth is just really nice depth is just really nice depth is just really nice depth is just really nice depth is just really nice depth is just really nice depth is just really nice depth's Avatar
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    Re: N19 Vibration cause?

    Quote Originally Posted by Dsix36  View Original Post
    Only this one:

    PROPELLER AND HUB

    Also, check the shafty for play when the hub is removed.
    DOH! Can't believe i missed that.

    Ok, I will check and post my result here...

    /Christian

  6. #6
    RBW Member AzTek Diver is an unknown quantity at this point AzTek Diver's Avatar
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    Re: N19 Vibration cause?

    Replace the hub/yoke, it is broken.
    Last edited by AzTek Diver; 21st September 2015 at 00:58.

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    RBW Member tbone1004 is an unknown quantity at this point tbone1004's Avatar
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    Re: N19 Vibration cause?

    could also be an issue with one of the blades if one got nicked and is off balance.

  8. #8
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    KISS Classic

    Re: N19 Vibration cause?

    Check the yoke. If one of the blade pins is cracked it can cause a terrible vibration.

  9. #9
    Christian Rasmussen depth is just really nice depth is just really nice depth is just really nice depth is just really nice depth is just really nice depth is just really nice depth is just really nice depth is just really nice depth is just really nice depth's Avatar
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    Re: N19 Vibration cause?

    An small update:

    Dismantled the whole prop assembly.
    Rinsed it all down in water with a toothbrush.
    Lubricated all joint-surfaces with high quality silicone.
    Re-assembled everything.

    Went for a dive today, no more vibrations :)

    Thank you all for tips and suggestions...

    /Christian

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