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View Full Version : Blade 400 Flybar Removal


Sooby
02-29-2008, 06:02 AM
G'day all

I am having difficulty removing the flybar on my Blade.

I have removed two screws and two grub screws and gone over the 'works' with a magnifying glass.

I am sure I have removed everything that retains the flybar and I can even rotate it freely, however, it just will not slide out.

I have even given it a squirt with WD40.

Suggestions would be welcome.

Thanks

Zman39
02-29-2008, 07:58 AM
If there is the slightest bend, it will be hard to get it past bearing. Will it go one way but not other? Also check for any knick or bur in flybar and sand it smooth with some 800 grit paper.

Z

LockMD
02-29-2008, 09:09 AM
I had a heck of a time too ended up cutting it to remove. You are aware there are two more grub screws on the bottom as well, yes?

gmd
02-29-2008, 08:01 PM
Give it a good pull. There is probally a burr.

Sooby
02-29-2008, 08:54 PM
Thanks

There are only two grub screws.

I think the grub screws have left a burr on the shaft inside the mechanism and this will prevent removal.

sokal
02-29-2008, 09:15 PM
the grub screws are on flat part on flybar but it still most likley a burr
brace fly bar cage against tableso the fly bar is over the edge and get the death tool of distructioN
(HAMMER) and tap it out

LockMD
02-29-2008, 10:56 PM
Thanks

There are only two grub screws.

I think the grub screws have left a burr on the shaft inside the mechanism and this will prevent removal.




HUH? I just replaced mine, there are two grubs on top and guess what, hold it upside down there are two on the bottom too. So that is why you can't budge it.

Sooby
03-01-2008, 06:32 AM
No grub screws on the bottom, and I am looking at it via a powerful magnifying glass

GreenBar0n
03-01-2008, 02:45 PM
I had trouble removing my flybar also, it turned out to be one of the brass washers catching the notches on the flybar itself while I was pulling against it. Inspect the washers between the flybar-cage-bearing and the see-saw.

I just kept pulling until it came out (loosened the two grub screws first of course).

LockMD
03-01-2008, 06:13 PM
No grub screws on the bottom, and I am looking at it via a powerful magnifying glass



?????? Someone else said they had none on the bottom too ???????

I can see 2 on top 2 on bottom even in the exploded view in the manual, anyways, here are pics......

Wolfpackin
03-02-2008, 12:07 AM
LockMD,

Just so you know you are not going crazy; I have 4 grub/set screws also.
There are two flybar control frame arms. One on each side. Each frame arm has two grub/set screws, one on the top and one on the bottom...total is four!

I wonder if these are falling out on some helis or if some heli's are coming from the factory with none on the bottom. :confused:

GreenBar0n
03-02-2008, 02:59 AM
I bought my Blade 400 three weeks ago, and I have no lower grub screws on the flybar cage. There are notches only on the one side of the flybar, so I can't understand why they would add two more to the bottom. It's always nice to have extra parts though:cheers.

JimLerch
03-02-2008, 08:19 AM
My guess on why each half of the fly bar cage has 2 set screws is this. "the assembly line zombies can grab the part and install it upside down!" :roll:

When I put my first Trex 450 head together, yup, I put it together with one side "UP" the other "Down" then cussed myself for not noticing it till later.

LockMD
03-02-2008, 03:24 PM
weird! that the first ones out (I'm guessing) 'cause I got the orig deversion price of 369 back in dec have 4 and newer ones do not. But you are right there are only notches on the top.

Anyways, no we all know we are saine just different :) did the OP ever get the flybar out?

offrapel
03-04-2008, 12:57 AM
My Blade 400 is two weeks old. And like GreenBarOn, the lower grub screws are not present, the lower holes are smooth, so it never had them. Hmm...

Wolfpackin
03-04-2008, 11:53 PM
Cool, I got two free grub screws by purchasing early.

Sooby
03-05-2008, 07:06 AM
Finally got the flybar out, more disassembly took care of it.

widower
03-05-2008, 09:20 AM
I purchased mine in the first wk of Jan and it has 4 screws. I used elbow grease to remove my flybar, and then, I noticed the 2 bottom screws. Ops.

jwsr
03-27-2008, 03:11 PM
Hey guys, I'm Jerry. I'm an old newbee (58), and I've been here quite a while without a post. I haven't offered advice either, because at this stage of the game, I'm certainly not qualified. I've learned everything I've needed to get me started in this cool hobby just by using search. My son got me started with a little Walkera 5G6, then the Blade CX2. What a great site! I'm now in the Process of learning hover on my next step up, a blade 400.

I have a mechanical and woodworking shop in my garage, and I'm a fanatic about precision. I make my own parts for some things, and make specialized tools, when needed, to get the job done easier.

I had a pretty good panic thumb crash last week, and am now replacing several parts. from the tail rotor assy. and boom, to the main and feathering shafts, flybar, and main blade holders.

During reassembly, I noticed that the flybar control frame was out of square. I loosened the screws that hold it together to re-align it, and tightened them down. When the flybar was re-installed with the flats up toward the set screws, all looked well. However, when I tightened down the set screws equally to the flybar, and sighted along the top edge of the cage, it was warped again.

I did a search and came across this thread. I found it interesting that there were also holes on the bottom of the plastic frame that I hadn't even noticed. This is when I thought of something. Since the assembled cage was only twisting when the set screws were tightened, I thought that the flats on the flybar were not machined parallel. I sighted along the flybar and this wasn't the case. The flats were even and parallel. This left the set screw holes to examine. I backed them out as far as I could without removing them, and sighted along the top edge of the plastic cage end. Sure enough, when these were assembled at the factory, one screw was tapped in on an angle and when tightened down, it was torqueing the cage out of square, while the other was threaded in perpendicular to the flybar.

So, I removed that set screw, turned the frame piece over, and carefully threaded it straight into the un-used former bottom hole. When all was reassembled, and the frame was tightened down on the flybar, the cage remained perfectly square. I put the paddles back on and was done with it.

So, I think this is something that hasn't been mentioned here, to my knowlege, and I hope it may be of use to some-one in the future.

Thanks to all the members here for a wealth of information and a very good site.

Best Wishes,

Jerry