Libelle spoilers

On Sat, 10 Sep 2016 06:54:50 -0700, johnsinclair210 wrote:

There is a gear box on the root rib that changes rotational input to
push-pull output that drive the spoilers. I remember one bird that I was
unable to free up this gear box. The gears are inside a fiberglass
box..........the only way I could see to get some lube in there was to
drill a 2mm hole in the fiberglass box. Worked like a charm.
JJ

Thanks, JJ. I knew there had to be a rotary-to-linear converter somewhere
in the wing and I had wondered where it is and how it worked.

Using an oilcan to put a bit of oil on the end of the bearing where the
shaft enters the root rib worked last time in the workshop so I'll try
the same trick again.


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martin@ | Martin Gregorie
gregorie. | Essex, UK
org |

Hi JJ, you may just be able to save my life! I also have a standard Libelle with only 650 hours on it. But the airbrakes are really stiff and it is clear it is the gearbox in the wing roots. I have tried to get lubrication in there and failed and want to drill the 2mm holes. But, where exactly do I drill them and what lubricant would you recommend please

Or one or more DU bushes are worn inside the wings.

Ask Streifender for advice, replacing them isn't too big a deal.
http://www.streifly.de/home-e.htm

GG

At 00:35 10 September 2016, JS wrote:
Thanks, JJ. So lubrication is the secret!
Something like LPS1 perhaps?
http://www.lpslabs.com/product-details/560
Unsure if it's available in Britain.
Jim

On Sat, 10 Sep 2016 22:47:06 +0000, Gav Goudie wrote:

Or one or more DU bushes are worn inside the wings.

DU?

Ask Streifender for advice, replacing them isn't too big a deal.
http://www.streifly.de/home-e.htm

Will do. Thanks.



--
martin@ | Martin Gregorie
gregorie. | Essex, UK
org |

Are the airbrakes stiff over their whole range? Or is it just the over-centre that's difficult to overcome?

Nick.