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Too much friction in the 600

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  • #1

    Too much friction in the 600

    After flying my 600esp for the first time in about a year, I have noticed the head has a bit of friction in it.


    If you push the head around with blades, you can notice the head decelerate to a stop, like their is some extra friction slowing it down. When moving the head of a 600 pro at the club it is clear their is much less friction.


    I have just replaced the one way bearing and shaft that goes with it, plus greased all the gears but it has not made much difference.


    Anyone had this issue and got around it?


    Ollie.
    Tags: None
  • #2
    Check your tt gear mesh ;-)
    sigpic


    Rave ENV Nitro
    New Logo 550
    Synergy N5c
    TSA 700E night flier
    I use VBar control because it's feckin awesome I use NEO rescue when I remember to
    5 x EGS thingys and a Platinum star doo dah

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    • #3
      I had slop in the mainshaft and fitted the shim. Then it was too stiff so I took the shim out then noticed that the other shim was half the thickness of the first. One was 0.2mm and the other was 0.1mm. The thin one was bang on.

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      • #4
        Thanks for the responses guys.

        @milly0812 - Do you mean the mesh where the tail connects to the main and auto-rotation gear, or the mesh at the tail its self (where it links to the tail shaft).

        @Vikki - What is a 'shim'? Also, I bought an early 600esp and have noticed that a new one way bearing assembly is now available. Does this link in with the shims?

        Cheers.

        Ollie.

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        • #5
          The ESP has old school main shaft with adjustable collar.
          It's a case of fault finding by elimination, maybe remove main gear first that will tell if bearings shot. Then put it back in and remove tail box. Etc etc ;-) you'll find the culprit eventually
          sigpic


          Rave ENV Nitro
          New Logo 550
          Synergy N5c
          TSA 700E night flier
          I use VBar control because it's feckin awesome I use NEO rescue when I remember to
          5 x EGS thingys and a Platinum star doo dah

          Comment

          • #6
            That's the thing, I have tried that. I got the tail off and it did have a little friction in it (as expected), but not lots. But with the tail off, the main head still slowed its self down without the tail, which leads me to believe it's a bearing issue. But with just the shaft + head in the assembly and no main gear, it spins fine. So I don't think it's the bearings in the collars.

            Maybe the main shaft is very slightly bent? It has yet to have been crashed though...

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            • #7
              What about the front tt gear does that spin the tail freely with the main gear removed ?

              Edit: Vikki has a point with the shim thing, have you tried loosening the two grub screws in the main shaft collar and slacken it a touch ? I kept one of my helis in my outhouse last winter and rust formed on the main shaft etc ??
              Last edited by milly0812; 06-09-2012, 10:21 PM.
              sigpic


              Rave ENV Nitro
              New Logo 550
              Synergy N5c
              TSA 700E night flier
              I use VBar control because it's feckin awesome I use NEO rescue when I remember to
              5 x EGS thingys and a Platinum star doo dah

              Comment

              • #8
                The tail does not spin 'freely', but does not feel like it has too much friction within it either.

                I haven't tried the shim thing either, will give it ago.

                Thanks.

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                • #9
                  Found the culprit

                  http://i65.photobucket.com/albums/h2...t/IMG_0183.jpg

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                  • #10
                    Originally posted by Ollie West View Post
                    Found the culprit

                    http://i65.photobucket.com/albums/h2...t/IMG_0183.jpg
                    I was just going to say have you checked the bearings in the boom!! So easy to forget they are there.
                    Everyone is entitled to my opinion!
                    Trex 7(8)00 F3C, 600 ESP, 550E V2

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