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HomeAircraftHelicopterAlignOther › swash plate bearing removal/instalation
10-28-2011 05:14 PM  6 years agoPost 1
purplefox

rrNovice

Greece

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hi there guys!

i would ike to know if the swashplates bearing can be removed and replaced with an other bearing. Both my 700 and 600 swashplate bearings make some noise when rolling them in my hand. Is there a way to replace the bearing and not to buy a new swashplate?

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10-30-2011 01:31 PM  6 years agoPost 2
jsenicka

rrProfessor

Eagle River, WI

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Not that I am aware of.
I think you will need to replace the swash

Jim Senicka
Team Manager, GrandRC Flight Team

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10-30-2011 07:07 PM  6 years agoPost 3
dkshema

rrMaster

Cedar Rapids, IA

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I guess I've never looked at how the swashes are assembled. Perhaps its a combination of tolerances and a loctite material -- Align's green R48 or something like Loctite stud and bearing mount.

You might pretend you're replacing a bearing in your OS 50 -- stick it in the oven, heat it, and see what pops apart. If it does, clean out the two surfaces, reassemble in reverse order.

You may be a guinea pig, let the rest of us know how it turns out.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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10-30-2011 07:22 PM  6 years agoPost 4
CF1

rrApprentice

Olympia, WA

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I've been wondering the same thing for a while. back in the early 450 days they had a quality problem with the swashes seperating. the glue they were using was sub par. I don't know f the bigger ins are glued also but it would be nice to know. one thing I noticed was on the bottom of my 600n swash there are two machined slots/channels. I was wondering if the were for assembly. maybe the top is screwed to the bottom.

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10-30-2011 07:39 PM  6 years agoPost 5
dkshema

rrMaster

Cedar Rapids, IA

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Screwed in or perhaps swaged in place. Need someone with a sacrificial swashplate to find out and report to the world.

Yes, the old Align separating swashplate trick. Started with the cheesy plastic swash of the original 450 and seems like they didn't get it squared around until well past the 450 XL versions were in place. The original R48 just seemed to stay gummy, but never cure.

Since then, I've used it to hold pinions in place on my Trex 250's and it holds quite well. They must have used up the old batch of R48 on all those Align vacuum cleaners.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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10-31-2011 03:18 PM  6 years agoPost 6
Fury3D (RIP)

rrApprentice

Summerville, SC 29485

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I have taken one apart, and yes the bottom screws up into the inner swash ring. The two dimples are for a spanner that they must use to put the two together. I made my own spanner in my mill using two 2mm hardened dowel pins, and a piece of aluminum flat bar. I then tried to loosen up the bottom, but it wouldn`t budge. I then heated it up and tried again, but one of the pins on my spanner broke. You can`t use too much heat, or you will melt the plastic race for the spherical ball.
So, what I did was take my 12 ton shop press and just forced the bearing right out along with the inner swash ring. I was then able to unscrew the bottom piece. Of cource, the swash was junk after that, but at least I was able to see how it was put together.

The reason the two are threaded, is because the plastic race for the spherical ball, is two pieces (upper and lower) with a lip all the way around it. That lip is "sandwiched" between the inner swash ring and the bottom threaded piece with the two dimples. If you could get the bottom piece free, you could tighten it up and take the play that developes out of the swashplate.

Also, if you can get thee two apart, you can replace the bearing no problem. I have both an arbor press as well as a shop press which is really needed to do this correctly.

I have a defunct swash now, and maybe I`ll try it again sometime, but the main problem seems to be able to get enough heat to it without melting the plastic ball race. The thread retainer they use is some strong stuff!

Mike Swift
Align
Team Futaba
Morgan fuels
CYE
Scottgrayrc
YS Engines

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