Question? Dfc Head Play - Fix It Or Ignore It?

Discussion in 'Align' started by iggy, Nov 26, 2014.

By iggy on Nov 26, 2014 at 7:24 AM
  1. iggy

    iggy Well-Known Member

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    Hi there,

    After 187 flights this season with my 500 DFC Pro I have a notable play in the DFC head. The blade holders are playing up an down a bit. At the end of the blades it tots up to about 15 mm to 20 mm.

    I know that I had no play as I have built the helicopter in April this year. Now there is maybe 0.5 mm space between the blade holders and the central head piece.

    My question is if I have to put in some spacers? Or can I ignore this issue - because the heli feels good in the air? Doeas somebody know which spacers would fit if needed?

    Thanks in advance,
     

Comments

Discussion in 'Align' started by iggy, Nov 26, 2014.

    1. Manyc

      Manyc Well-Known Member

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      Sounds like its time for some new Dampers in the head....
       
    2. simon

      simon Well-Known Member

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      +1 on dampeners in the head, the play will go away.
      Simon
       
    3. smakmeharder

      smakmeharder Administrator

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      Hi @iggy how have you been!.

      When you start to get slop on the blade holders its time to usually change the blade grip bearings and thrust bearings along the feather-shaft as well as the head dampeners. They do wear! A few times I have pulled my head apart only to find the thrust bearing destroyed (ie ball bearings drop out everywhere).
       
      Last edited: Nov 26, 2014
    4. The Dude

      The Dude Well-Known Member

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      Lol, You do maintenance !
       
    5. Manyc

      Manyc Well-Known Member

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      It wont be the blade grip @smakmeharder and if your replacing the damnpers, check out the whole head... best case re-grease the thrust bearings and put them back in.. but after nearly 200 flights I would replace them as a precaution, and check the bearings are still smooth... sounds like it might be maintenace time for your heli... things I have found need checking for heli's
      * dampers
      * thrust bearings and and bearings in the head... including DFC links...
      * Main shaft bearings... these go for no reason on align heli's
      * gear wear, torque and main...
      * if belt, see if its loose.. after a few hunbdred flights I would replace it as part of a maintenance cycle
      * Tail assembly.. these bearings take a lot of punishment...

      not what you wanted to hear.. but your heli will thank you... and you will be surprised at the difference...
       
    6. smakmeharder

      smakmeharder Administrator

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      Sorry @many i left out ONE IMPORTANT WORD .... BEARING.. Blade grip bearing. I edited my post..Your right its not the blade grip.
       
    7. Manyc

      Manyc Well-Known Member

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      aahh and now your have editied it... I look like a dick... fair enough... glad where on the same page... but I think its time @iggy did a break down maintenance on his heli... I think you noticed a difference in yours after you, and by you, I mean @The Dude did some maintenance on the heli.
       
    8. iggy

      iggy Well-Known Member

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      Thanks guys.

      So its up to the dampeners.

      I will check the bearings as well. But if they move smooth and are in good condition I will not replace them.

      Kind regards,
       
    9. iggy

      iggy Well-Known Member

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      Just finished the maintenance and set up with GPro. No more head or tail play. Everythings tight and running smooth. Lets go for a test flight. :)

      image.jpg
       
    10. iggy

      iggy Well-Known Member

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      Test flight completed. Gpro seems not to be a bad thing. But I have a tail wag now. Tail is holding only at 100% throttle. Thats not what I want. So Back to the computer and try to set it up better. Whats more.. oh yeah - it was bad ass windy and cold out there.
       

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