Robert,
Do you suppose you could help me figure out what year my manual was
published? I've made a brief comparison of the PDF and hard copies I've
got and none are duplicates. My 1937 hard copy section seven is titled
"ATLAS F-SERIES 10-INCH LATHES" and the pages are numbered one to 63.
Don
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On 1/28/2019 12:23 AM, Robert Downs via Groups.Io wrote:
The MOLO¡¯s that on the Copyright page say Copyright 1937 were printed
and reprinted (7 known versions) between 1937 and 1953.? I have never
seen nor have I ever heard of anyone having a First Edition actually
printed in 1937.? I have two and have heard of three or four more
editions that were probably printed in 1938.? Except for Chapter 7 ¨C
Threading, which is machine specific, the majority of all editions are
pretty much generic.? Exceptions are that the majority of photos are of
the 10¡± model in production the year that each copy was printed.? And
the speed related charts? such as RPM versus diameter for specific SFM
assume a 10¡± or 12¡±.? However, the charts are close enough to be
usable.? There actually was at least one printing or edition where
Chapter 7 is specific to the 6¡±.? However, they are pretty rare.
From 1954 on, Chapter 7 includes coverage of the 6¡±.? >From 1957 on,
Chapter 7 covers the 1/2¡° bed 12¡± and the 6¡±.
The change to a recommendation for SAE 20 appears to have been
retroactive.? However, I have been wondering lately whether it might be
better to continue using SAE 10 on the sleeve bearings in the 101.07301.
Robert Downs
*From:*[email protected] [mailto:[email protected]] *On
Behalf Of *Don Newbold
*Sent:* Friday, January 25, 2019 12:21
*To:* [email protected]
*Subject:* Re: [atlas-craftsman IO] new guy - old 618
I've looked through a bunch of pdf's and a couple of original printed
manuals. My original 1937 Atlas manual never mentions 618 or any other
model number, as best I could tell, but it discusses both bearing styles
and shows pictures of both styles.
I noticed one little tid bit of information. In the 1937 manual 10
weight oil is used. In the later manuals, 50s/60s and later, 20 weight
is used.
Don
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