Mon, 20 Apr 1998 13:39:38 +0100 - Message No. 2650
From: Marc Luethi

Subject: Re: Problem with steering head bearing (??)


At 11:44 20.04.98 +0200, Falk wrote:

>when i slow down my AT there is a little shake from the front fork. Must i
>change the steering head bearing (Lenkkopflager) or is this a problem with
>the front wheel bearing? I will solve this problem up to the ATIC meeting.

If you mean a slight wobble during hard braking: no, that's your tyre.
My Enduro4 also shows this behaviour when it is brand new. It will go away
after a few dozen kms.

If your handlebar wobbles between 60-80km/h (aka the shimmy effect), then
it might be a worn tyre, a lousily mounted tyre or indeed, your steering
head bearings.

Check the preload on these "angular contact ball bearings" (thanx, Lawrence
for the correct terms!), an if necessary, tighten *slightly* (!!!)
If the problem persists or comes back, you'll need to change the bearings
however.

Take the RD03 part, wich is a  taper roller bearing 

(http://www.skf.ca/products/rollerbearing.html)

or go for the Hein Gericke Part No. 2200 3118 , DM 65.- (AFAIK), 
also a taper roller type.

Greets 

Marc



-- 
marc@rrr.net                                           YJ@IRC
http://zebra.fh-weingarten.de/~luethi                   



dipper@normans.isd.uni-stuttgart.de