Hi Bob,
When I learned about your nosewheel catastrophy last year I changed the
rollpin to an AN4 bolt, and I am amazed that no mandatory mod has been
issued.
In regards to shimmy, I found it very easy to keep under control simply by
taking the load off the nosewheel during high speed taxi runs. Setups tend
to vary, and I guess it has a lot to do with the wheel being well balanced
or not.
Regards,
Karl
>From: "R.C.Harrison" <ptag.dev@tiscali.co.uk>
>Reply-To: europa-list@matronics.com
>To: <europa-list@matronics.com>
>Subject: RE: Europa-List: Damping grease for nose gear
>Date: Tue, 23 Jan 2007 23:57:19 -0000
>
>
>Hi! Svein/Karl/Dean
>Really do recommend you to stick to the correct poundage <(18lb(8kg) to
>20lb(9kg) with the wheel clear of the ground> breakout of the castor
>yoke and never tempt the shimmy, because when it happens it is dramatic
>and is most likely to disintegrate your nose wheel spat.
>The new "grease" seemingly is an excellent friction material. However
>don't in any way overload the castellated nut either.
>Also IMHO I would in future completely remove the yoke, certainly
>annually, degrease it and inspect the spindle to yoke fixing. ( it's
>only held in by loctite and a 1/4" roll pin.)
>To check the breakout force tie a piece of rope to one side of the axle
>extend it round the rear of the wheel make a loop on the loose end and
>hang a spring balance into the loop to pull the rope until the breakout
>force is reached.
>Still awaiting the AAIB report on my spindle /yoke coupling failure and
>I haven't been the only one to have an incident.
>
>Regards
>Bob Harrison. G-PTAG
>
>
>-----Original Message-----
>From: owner-europa-list-server@matronics.com
>[mailto:owner-europa-list-server@matronics.com] On Behalf Of Karl Heindl
>Sent: 23 January 2007 21:50
>To: europa-list@matronics.com
>Subject: Re: Europa-List: Damping grease for nose gear
>
>
>Svein,
>
>It's in the manual, I believe 20 pounds.
>I found the best method is by trial and error. For testing, I pulled the
>
>aircraft by the prop in a slalom line, and it should follow easily. Then
>a
>full power taxi run down the runway. If there is shimmy, tighten it a
>bit
>more etc. . I don't use special grease and I don't think the pressure on
>my
>wheel is more than 3 pounds. Makes taxiing in tight circles so much
>easier.
>
>Karl
>
>
> >From: "Sidsel & Svein Johnsen" <sidsel.svein@oslo.online.no>
> >Reply-To: europa-list@matronics.com
> >To: <europa-list@matronics.com>
> >Subject: Re: Europa-List: Damping grease for nose gear
> >Date: Tue, 23 Jan 2007 15:11:30 +0100
> >
> ><sidsel.svein@oslo.online.no>
> >
> >Dean,
> >
> >Do you have a record of what force at the rear endge of the tire is now
>
> >required to turn the nose wheel around?
> >
> >Regards,
> >Svein
> >LN-SKJ
> >
> >>
> >>It's from Nye Lubricant. I got the sample kit for $60 but only used
>the
> >>Ultra Heavy PG-44A. Havent had a shimmy since and steers on the ground
>
> >>much
> >>better than without.
> >>
> >>Dean Seitz
> >>N284A
> >>
> >
> >
> >
> >
> >
>
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