).
Here's a guide on how to change it (or just check it):
Time needed - about 15-30 minutes.
First, you'll need a 5,5 mm hex tool, scroll down to see a picture on it (you can't use a 5,5 mm box spanner tool cause it's too fat to reach the nuts). These are pretty unusual but can be found or ordered in large tool shops or from some Internet helicopter shops (PM me if you can't find one and I'll help you, cause I don't think I'm allowed to post that kind of web page addresses here).
Start with undoing the screws that hold the main blades:
Now you can see a bit of the feathering shaft, try to remember how much the shaft is tightened on both sides (should be the exact same length), about 1 mm pointing out from the nut:
Remove this knob (same on both sides):
Here are the tools i used to undo the nuts holding the shaft. If you don't have that sort of pincers, you can use something else, for example a small screw driver:
Now, undo the nuts (use the hex tool on one side and hold the other nut with your pair of pincers). When the nut is of it should look like this:
Now, pull out your blade clamp but be careful so you don't loose the two small pieces inside the clamp! Then it looks something like this:
Pull out the small metal washer, then do the exact same thing on the other side. When that's done you only have a rubber washer on both sides of the feathering shaft left:
Pull the shaft a bit and you'll be able to remove the rubber washers. Drag the whole shaft out and it looks like this:
Here is what my bent feathering shaft looked like:
DON'T try to straighten it out, it's not worth it. It won't be perfectly straight and only the most slightly bending will result in reduced flight performance.
Instead, buy a new one! EK1-0344 (Axis for E008) is a bag containing one of these feathering shafts, but since they are very easy to break I suggest you buy a bag with 4 of them (originally to Belt-CP but HBK/HBK2 use the exact same), EK1-0540:
Now to the tricky part - put everything together again in the correct way!
Start with inserting the new shaft in its hole and put on the rubber washers on both sides. Use something small (but not too sharp) to push the rubber washers in place. Now the shaft must be centered. It's easier to do this if you remove the knobs holding these two guys:
Now center the feathering shaft, and it should look something like this (when centering, the rubber washers might have moved a bit so you might have to push them in place again):
When that's done, you can reassemble the "guys" again...
This is the order the small parts should be assembled in (tilting to the right):
And same stuff tilting to the left:
(probably the two most helpful pictures in this guide)
I'm not 100% sure if it's exact the same on a HBK1, cause I have the King2 (can someone with a King1 tell us if it differs?).
If you can't find all these small pieces of sh*t you better start looking on your floor or wherever they could be
(i wish you good luck ).
It's recommended (i've seen this in the manual) to put a little lube on these guys:
For that, I use silicon oil spray:
Next, put the metal washer in place, then the blade clamp. Also reattach the blade clamp knob, and it should look like this:
Then put on the two guys you just lubed (or did you skip that step, you bas*ard?
), anyway you know which two I mean... Now it looks like this:
Then tighten the last screw on that side, but just a little so the two guys won't fall off when you're doing the exact same thing on the other side of the shaft.
When that's done, you need to tighten the screws more. But not more than they were before you loosened them (I told you to remember how much that was, didn't I?). Approximately 1 mm sticking out on both sides. If you are tightening them too much your helicopter will act strange and (if I remember correct) be more sensitive in its movements than normal. And don't forget to tighten them the exact same amount on both sides (as good as possible)!
Now it should look like it was in the beginning, something like this:
Now just put your main blades on again (or change them if they're damaged). Remember they should turn clockwise. Don't tighten them too hard (not very loose either) or they might not get to their natural position when spinning.
You might need to balance and track your blades again, and if you still can't get your helicopter to stop wobbling your main shaft might be bent! But that's another story, hope this guide has helped you!
Good luck with your flying, m8!
...and BTW, admins - feel free to edit/modify/add any important things that I might have missed.
_________________
//Ola
Honey Bee King 2 (3900 BL motor, 25A ESC + 11T pinion, E-sky HH gyro, Two E-sky 1800 mAh 20C Li-Po batteries and some silicon oil spray)
