[GreenKeys] Super Cleaning

[Bob Camp]

Hi

Well the only reason I remember the press fit ball bearing is that I 
had a bad one in a 15 I bought. This was back in the 1970's. I pulled 
the thing off the shaft and on the advice of a friend took it over to 
the local parts outfit. I had absolutely no confidence at all that they 
would be able to do anything for me on a bearing from the 1930's. I was 
living in a fairly small town at the time and the parts store mostly 
sold auto parts.

I took the thing up to the counter, the guy took a look at it for no 
more than 15 seconds and asked if I needed the same brand or not. He 
had them in stock as well as a "just as good but cheaper" version. It 
turned out the cheaper one was in stock here and the same brand one was 
in stock down the road. I bought the one he had and sure enough it 
worked just fine. I don't think I paid more than five or six dollars 
for it ....

I'm still amazed that we had the ability to stick with standard 
bearings for forty years and we don't seem to be able to figure out how 
to build electronic components that make it to their fourth birthday 
without going obsolete.

	Enjoy!

		Bob Camp
		KB8TQ



On Aug 17, 2004, at 9:56 AM, Sheldon Daitch wrote:

> Bob,
>
> I'd have to get the picture book out and
> refresh, but I think there was a good sized bearing at the
> gear end of the mainshaft and then a smaller bearing at
> the selector magnet end.  Yea, those had to be taken
> into consideration.
>
> You know, maybe we pulled off the mainshaft before we
> dunked the machines.  Still, too many years ago.
>
> The gray matter ain't what she used to be.
>
> Sheldon
>
>>
>
> Bob Camp wrote:
>>
>> Hi
>>
>> There are also a couple of ball bearings on the main shaft that
>> probably need a bit of special attention after a bath like that.
>>
>>         Take Care!
>>
>>                 Bob Camp
>>                 KB8TQ
>>
>> On Aug 16, 2004, at 11:44 AM, Sheldon Daitch wrote:
>>
>>> When I worked for the AP, the method we used for cleaning
>>> M-15 units was to soak it in a solvent type liquid, then
>>> it was washed in the hottest water we could get in the shop,
>>> and then immediately dumped it in a bucket of oil.
>>>
>>> The solvent was a heavy liquid, not something the evaporated
>>> in the rate of gallons per minute.  The hot water bath
>>> cleaned off all the solvent, but the keep things from
>>> immediately rusting, the oil bath put a layer of clean
>>> oil on everything.
>>>
>>> The mainshaft had to be taken out and rebuilt, because
>>> anything with the oil felts would get screwed up with the
>>> solvent water process.  Maybe the selector magnets were also
>>> pulled off, too.  I think we had to redo the dash pot
>>> leather and maybe the typing unit fabric band.  Too many
>>> years ago, folks.
>>>
>>> Sheldon
>>>
>>> Bob Camp wrote:
>>>>
>>>>
>>>> Putting the machine in the dish washer is not likely to improve
>>>> relations with the rest of the family. It also probably won't help 
>>>> the
>>>> machine much either. This was a "big idea" back about 10 years ago.
>>>>
>>>>
>>>>>     Thanks and 73!
>>>>>     - Greg K2GTM
>>>>> __
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>>
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