[R-390] kilocycle/megacycle movement

Tue, 31 Dec 2002 07:03:32 -0500

Yes, if you stick a small screw driver between the teeth
and twist, you will see it moving slightly.  BUT just
because you can move the 2 with a screwdriver or other
object does NOT mean the gears are working properly.
The gears rely on the small springs to apply enough pressure
to remove backlash and any burrs may be just enough
to prevent this from happening.  Joe is right, the only way
to know if these gears are operating properly is to remove
them and spin one half against the other.  Then assemble
with gears re-loaded.  Movement alone does not assure
proper operation.

Scott

----- Original Message -----
From: "Robert Bethman" <[email protected]>
To: "Joe Foley" <[email protected]>; <[email protected]>
Sent: Monday, December 30, 2002 9:10 PM
Subject: Re: [R-390] kilocycle/megacycle movement

> Let's think about this one a little.
>
> If the spring loading is supposed to take up slack, i.e., backlash, then
> even while meshed it SHOULD be possible to move one of the two spring
loaded
> gears while meshed.
>
> Bob Bethman - N0DGN
> Manassas, VA
> (BC-610s are just better!)
> R-390A EAC '67, R-390A Collins '52, '52 BC-610I, BC-939B, and BC-614E
>
> >
> > You won't be able to see or feel the burrs on the
> > split gears until you seperate the two halves and they
> > won't be able to move against each other while meshed
> > to another gear.
> >
>
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