[GreenKeys] Noisey gears

Sheldon Daitch sdaitch at kuw.ibb.gov
Wed Feb 4 01:07:57 EST 2009


The main shaft gear was fiber.  The practice we had at AP-Raleigh was to 
keep
the main shaft fiber gear in oil, until we used them.  New one were dry 
as a bone.

I think we just kept a jar full of oil in the shop, and when we needed a 
main shaft
gear, we pulled one out of the jar.  Of course, we had to put a new dry 
one in the
oil, for the next use.

73
Sheldon
WA4MZZ

Larry Tighe wrote:
> I changed out the 75 WPM gears on my Model 15 in the "mailbox" cabinet. 
> They were 91286 & 98287 gears.
>
> I installed 74912 & 74913 gears.  The motor platform required considerable 
> adjustment so the gears would mesh "correctly".  Ever so small turning of 
> the motor shaft will not turn the main shaft...in other words just a tiny 
> bit of play....very tiny.
>
> With the selector magnet pulled in, just the sound of the gears is very loud 
> and "grindy" sounding.  They're definitely not too tight or too loose.
>
> Do new, out of the box, gears have to "work in"?  These are loud and I don't 
> run it but for a few seconds.  The main shaft is well lubricated and of 
> little resistance to the motor.
>
> Any advice is appreciated.
>
> lar
> Larry
> www.antiquetelephone.com 
>
> ______________________________________________________________
> ml
>   


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