My new lathe

great score but wanted to mention something on the pistons you are wanting to make perfectly round. depending on what they are out of the skirts on some piston arnt perfectly round they are a bit oval for expansion would hate to see you ruin a good set of pistons
 
Wayne,

The Sears illustrated parts manual for the 101.07403 is in our Downloads section under the Atlas/Craftsman/AA folder and the Atlas/Craftsman Lathes sub-folder. About 2/3 of the way down the first page look for Craftsman Lathe 12 101.07403_27430_27440 12X18-36.pdf. It also covers the two other models which differ only in having a QCGB. Just ignore the page on the gear box.

The 101.07403 was made from 1940 (or late 1939) until sometime in 1957. If the serial number is not on the nameplate with the model number, it should be stamped into the top of the front way near the right end of the bed (the ways are the flat surfaces running the length of the bed at front and rear that the headstock, carriage and tailstock sit on). It should be a four or five digit number and may or may not have a letter prefix or suffix that is not part of the S/N. If you can find it, I can probably tell you about what year it was made. There are a few other files there which are applicable to your machine.

Robert D.
 
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