NN4 Upper Rail Offset adjustment - Instructions?
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  1. NN4 Upper Rail Offset adjustment - Instructions?

    #1
    Users Country Flag
    Join Date: Mar 2009
    Location: Nagoya, Japan
    Posts: 27

    The manual says that the upper rail offset can be adjusted to +/- 5, 10, 0r 15 degrees. I'm trying to figure out how to set the offset to -5 degrees. However when I look at the assembly, the angle between the pairs holes marked 5, 10 and 15 don't look like they are 5, 10, and 15 degrees apart and when using the holes marked "0" the scale is reading 45.
    I feel like I'm missing some necessary information here.
  2. #2
    Users Country Flag
    Join Date: Aug 2008
    Location: Netherlands
    Posts: 1,741

    Hi,

    you have to take in mind, that the detend interval of the upper rotator of NN4 is 15°. In case you set the upper rail to the 5° marked holes, you will end up with -10° shooting downwards. The presets are always working with +° settings. In case you like to work with -5° set up, you have to adjust the upper rail to 10° holes. This gives you a preset of +10° on the upper rail. Stepping down by 15° interval, you will end up with -5°. +10° -15° = -5°. Once you have adjusted the upper rail, have a look to the scale ring. Close to -30° mark on the scale ring, you will find a small Hex Screw. Now place the upper rail to -5° position, open the screw with the small tiny hex key that came with the NN4 and set the ring to -5° opposite the 0° mark on the vertical rail. Re fix the screw and you are ready to go. Adjust the ring with a closed Upper Rotator and keep the scale ring close to the upper rail when fixing the screw.

    Basic rule: all presets are for positive ° settings. So you can not set the upper rail to -5° as a Preset.

    Success and feel free to ask,
    Heinz

    BTW: presets are 5°, 7.5° and 10°.
    Last edited by hindenhaag; 07-18-2012 at 09:39 AM.
  3. Adjusting the rotating scale was the key

    #3
    Users Country Flag
    Join Date: Mar 2009
    Location: Nagoya, Japan
    Posts: 27

    Thank you Heinz! I figured out that I could get what I wanted by using the +10 setting but my scale was reading 75 degrees. I had no idea that the rotating scale was adjustable. I was working under light that was a little too dim last night and didn't see the tiny screw for the scale ring.
  4. #4
    Users Country Flag
    Join Date: Aug 2008
    Location: Netherlands
    Posts: 1,741

    Happy you got it. It is difficult to find it anyway. That's what the forum was crated for. To get everybody on the road.

    Cheers,
    Heinz
  5. #5

    Hello!
    I'm from Russia I apologize for my English. Through the translator is not quite sure how to do it.
    You can not submit a photo or illustration to do it.
    I would be very grateful!
    I unscrewed the screw and that's what happened ..

    Next I do not know how to rearrange, I'm afraid to break something.
  6. Reset NN4 Upper Rail To a Different Preset

    #6
    Users Country Flag
    Join Date: Aug 2008
    Location: Netherlands
    Posts: 1,741
    Lightbulb

    Hi,

    Here's the workflow on How To Do It:

    Click image for larger version. 

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Name:	Replace the Upper Rail to +5°.jpg 
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Name:	Upper Rail refixed to +5° Position.jpg 
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Name:	Move Upper Rail Down to Horizontal Position.jpg 
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Name:	Now unistall the Upper Rail again to re set Index Ring.jpg 
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Name:	Fixing Screw of Index Ring use HexKey that came with NN4.jpg 
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Name:	Index ring after removing Upper Rail.jpg 
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Name:	Open up Fixing Screw and move +5° Mark to 0° on Vertical Rail and fix the screw.jpg 
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Name:	Remount the Upper Rail to 5° Holes on the Rotator and off you go.jpg 
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    To reset the Index Ring the Upper Rotator has to stay closed. Do not open the Rotator doing it.

    Heinz
    Last edited by hindenhaag; 11-04-2013 at 04:15 AM.
  7. #7

    All of it! Very tight been planted, and I was afraid that there is some sort of catch. Thank you so much! And also thank you for the quick reply! Спасибо!
  8. #8
    Users Country Flag
    Join Date: Apr 2008
    Location: Hong Kong
    Posts: 2,476

    Hi Heinz,
    Thanks a lot for the instruction.

    nick



    Fanotec
    We listen. We try harder.

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