[T3] Generator Pulleys

[Bryon Garvin]

Got it.  Thanks Jim :)

 - bg

On Tue, May 1, 2012 at 8:31 AM, Jim Adney <jadney at vwtype3.org> wrote:

> On 1 May 2012 at 7:50, Bryon Garvin wrote:
>
> > can you explain what this situation is about?
> >
> > "the VR fails and puts shock stresses on the belt"
>
> The pulley is in 2 halves that don't have a bottom to the V-groove.
> When the VRs finally completely fail, one set of contacts in them
> tends to weld and then break. This leads to the clicking sound coming
> from the VR. When this is happening, the load (drag) the generator
> applies to the shaft and pulley has large pulses, which snaps the
> belt tight and wedges it down into the kerf of the pulley.
>
> The eventual result of this series of "wedgies" is to fatigue one of
> the pulley halves until it fractures.
>
> The moral to this story is, "Replace your VR immediately, if it
> starts to click."
>
> --
> *******************************
> Jim Adney, jadney at vwtype3.org
> Madison, Wisconsin, USA
> *******************************
>
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