[ARC5] lubricating BC-221 or LM freq meter gearing

[Bruce Long]

May not be very helpful but last year I removed the dryed grease from a National PW gearbox and got it sqeeky clean with solvents.
The gear box moved freely but was slightly rough

Then I added a good grade of synthetic grease, not too much and the feel of the gear box was surprising better.    I'd say add a little grease.   If you don't like it it can be removed





On Tuesday, January 21, 2014 3:38 PM, Kenneth G. Gordon <kgordon2006 at frontier.com> wrote:
 
On 21 Jan 2014 at 12:14, Dennis Monticelli wrote:

> I have the LM version and while the freq knob turns freely I can feel
> every tooth engage and disengage; it's a bit rough.  As far as I know
> no lubrication was used originally (except for the shaft bearing which
> is not the issue) so the good news is nothing as gummed up.  But I
> wonder if judicious application of the right lubricant would make the
> tuning much smoother.  I did check the action of the anti-backlash and
> it is working correctly.  Has anybody tried applying lubricant to
> smooth the worm gear to anti-backlash gear interface?

I routinely use Tri-Flow bicycle lube for that sort of stuff.

Ken W7EKB

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