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120 SR Blade (eFlite) 120 SR Helicopters Information and Help


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Old 04-19-2012, 11:54 AM   #1
torg
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Default tbe on the 120 ?

Does the 120 suffer from this also - what are the 120 specific solutions?
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Old 04-19-2012, 12:30 PM   #2
Liduno
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Does the 120 suffer from this also - what are the 120 specific solutions?
Thanks
If you have slop in any number of places in the head it will tend to hover in a circular motion but once you are moving around it's not that noticeable.

Balance bars get worn and can cause it.

If the fingers that hold the swash links or the pitch links get spread out in a crash that can cause it

If the holes in the main shaft get hogged out and the head can move around that can cause it.

Too much slop between the grips and the head can cause it.

I'm sure I missed some thing but those are the things I have found.
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Old 04-19-2012, 12:46 PM   #3
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i find it likes to pendulam a bit (back and forth) in a hover, tbe's ever so slightly. both can be cured with a little touch to the rudder or the reverse direction touch on the ailerons (right stick, side to side). unless of course something is damaged/broken.
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Old 04-19-2012, 07:31 PM   #4
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Does the 120 suffer from this also - what are the 120 specific solutions?
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Everyu fixed pictchedd heli with a flybar, eventually suffers from TBE....TBE is the helis way of telling you that the rotor head needs to be rebuilt with new parts, including the flybar.
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Old 04-20-2012, 09:37 AM   #5
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My 120 had been suffering from major TBE the last cpl of days so much so it was completely unflyable unless you were inside and just flew with the movement of the tbe. I figured it may be my 5 in 1 going again. But I sat down yesterday with a mission to fix it.. I ended up changing my anti rotation collar back to stock because I thought there was some slop in it. Didn't do anything after changing the whole head assembly and then I inspected it further and my servos were getting stuck. If I gave it full input it the servo would move to its position but when I let off it was sticking for about 7 seconds struggling to pull itself back. So I looked on YouTube and ended up taking the servos off my board and cleaning the contact with a que tip and alcohol. They were really black and gummy. But once I did that I adjusted the links to level the swash and then I took off and problem solved I was able to trim it out with 3 or 4 clicks
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Old 04-20-2012, 11:33 AM   #6
Tedolph
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My 120 had been suffering from major TBE the last cpl of days so much so it was completely unflyable unless you were inside and just flew with the movement of the tbe. I figured it may be my 5 in 1 going again. But I sat down yesterday with a mission to fix it.. I ended up changing my anti rotation collar back to stock because I thought there was some slop in it. Didn't do anything after changing the whole head assembly and then I inspected it further and my servos were getting stuck. If I gave it full input it the servo would move to its position but when I let off it was sticking for about 7 seconds struggling to pull itself back. So I looked on YouTube and ended up taking the servos off my board and cleaning the contact with a que tip and alcohol. They were really black and gummy. But once I did that I adjusted the links to level the swash and then I took off and problem solved I was able to trim it out with 3 or 4 clicks

If I may ask, how many flights did you have on it before you cleaned the PCB board?


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Old 04-20-2012, 11:39 AM   #7
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If I may ask, how many flights did you have on it before you cleaned the PCB board?


Tedolph
I haven't really kept count but I'd say easily 200+, that could be low too. I've been very aggressive with it lately also and put some lube on my linkages at one point which I'm assuming was a big part of my gummy servos
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120 SR Blade (eFlite) 120 SR Helicopters Information and Help

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