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e-E-Flite Blade CP mCX CX 400-3D > Blade 400 3D Feathering Shaft Replacement-Help!
 
 
PeteS
Heliman
Location: St. Louis, MO

I had a minor incident that bent the feathing shaft on my 400. Disassembly revealed a bunch of small washers that were not on the exploded diagram of the heli.

Are these the "shims" I have read about? Where do they go? Why are they used?

Thanks!!
09-25-2008 11:45 PM
 
 
dave75d
Veteran
Location: Jacksonville, FL

thin washers are your shims. put an even amount on each side of the head block outside the head damper o-rings. make sure you put the bearing washer against the bearings before the shims.
edit- they are used to make the head tighter. without shims, the feathering shaft is too long, and your head will wobble.

ten grand in helis and all i can do is hover
09-26-2008 12:05 AM
 
 
HeliFisher
Senior Heliman
Location: Verdi , Nevadafornia

Yep! Those are your shims. They go on after you damper/o-ring, and are used for fine tuning the fit and movement of your blade grips.

Once you rebuild your feathering spindle assembly, your blade grips should be snug, but spin freely. Not so tight that they feel notchy when you move the grips. Also, make sure you use the same # of shims on each side, as failure to do this will cause your head to be out of balance.

The shims are not represented on the exploded view in your manual, but they are supposed to be there.
Hope that helps.

Don't Taze Me Bro!!!
09-26-2008 12:17 AM
 
 
HeliFisher
Senior Heliman
Location: Verdi , Nevadafornia

I mean, YEAH, what he said!

Don't Taze Me Bro!!!
09-26-2008 12:33 AM
 
 
30636086
Veteran
Location: Tacoma, WA

Quote 
thin washers are your shims. put an even amount on each side of the head block outside the head damper o-rings. make sure you put the bearing washer against the bearings before the shims.
edit- they are used to make the head tighter. without shims, the feathering shaft is too long, and your head will wobble.

here is a trick that will help you in the future so you don't have to take all that apart and will make the repair a breeze!
In the future take the screw off one side and with an old fly screw it into it like the screw you just took out. And push the whole thing out the other side. The flybar will keep all your bearings and washers in place. Once the bent feathering shaft is out the other side take it out of the fly bar and screw the new one into it.
Make sure to put the screw and washer on the opposite side, that will stop the feathering shaft when you pull the new one in! then just unscrew your feathering shaft from the flybar and put the new screw and washer on it! and you are done in about 90 seconds!!!
You can PM if you still have questions!

I don't suffer from Mental illnesses; I actually enjoy mine!
09-26-2008 12:48 AM
 
 
PeteS
Heliman
Location: St. Louis, MO

Feathering Shaft

Thanks to all for the great info. I put the shims in and everything is working great.

Thanks!
09-26-2008 12:45 PM
 
 
dave75d
Veteran
Location: Jacksonville, FL

one more thing, make sure to replace those dampers regular, as soon as they start to get soft. makes flying more fun when the equipment is in good shape.

ten grand in helis and all i can do is hover
09-26-2008 03:17 PM
 
 
neilg.
Heliman
Location: massachusetts

is it true that the 2 races are of different sizes (I.D.)
and the bigger I.D. goes to the bearing side of the blade grip?

reinstated with helifreak -- for now
09-27-2008 03:10 PM
 
 
totSandman
Senior Heliman
Location: Still Unkown

Yes it it is true

The larger I.D goes into the blade grip first

Blade400 2221-8, DS285MG ,Spartan DS76,Jr3400G ,CC35 ESC ,CC10amp BEC/ T-Rex 500 lots of upgrades
09-27-2008 10:27 PM
 
 
neilg.
Heliman
Location: massachusetts

 then why is it such a freakin secret

i don't see it on the bag or in any help photos or threads until the past few days

reinstated with helifreak -- for now
09-27-2008 11:51 PM
 
 
Ozz58
Heliman
Location: Ft. Worth, TX USA

This might help.

I made this when I first got the 400, as my eyes are 50+ years old.

Hope it helps some of you "older" flyers,

Craig


Had to show off my newest bird.



Really can't come up with something good
10-04-2008 04:16 PM
 
 
30636086
Veteran
Location: Tacoma, WA

thats a nice bird and a bad ass picture! the pic is so clear that you can see all the details in it! Enjoy it!

I don't suffer from Mental illnesses; I actually enjoy mine!
10-04-2008 05:40 PM
 
 
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e-E-Flite Blade CP mCX CX 400-3D > Blade 400 3D Feathering Shaft Replacement-Help!
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