Last edited by David Utidjian 06-01-2009 at 02:47 AM. Having just recently bought an Atlas TH54 lathe, I thought I would give a quick walk through and talk a little bit about the machine. The manual calls that bearing a "safety valve" (sheesh.) the damn thing is designed to break that part.
My Rockwell 10" has instructions for making the shear pins in the manual.*/ĮTA: Ignore everything between the /* */ above I just looked it up in an Atlas manual I have. The shear pin would be at the other end of the leadscrew and is usually even easier to replace. Most lathes in that class have shear pin. nos.: th36, th42, th54 with vertical countershaft -cat. I am not familiar with the Atlas/Craftsman lathes but I would hope that it has a better method as a "fuse" for the leadscrew than breaking the bearing bracket. parts series lathe bulletin 101-6 replaces list atlas lathes c for atlas timken bearing lathes: with horizontal countershaft -cat. If you have a 4-jaw chuck you could even make it on your lathe. I would fuss and make it from cast iron with bronze bushings. I've moved a few files down there but can't recall which ones./*It looks like it would be pretty easy to make one from a solid block of cast iron or bearing bronze. The Classic Archives: Shed & Gazebo Plans, Vintage Books, Magazines, Comics on DVD Lathe Owners Manuals, Instructions, Parts List, Atlas, Monarch Machine.
May be in the Atlas folder still or may be in the Atlas Lathes folder. If you don't have it, you should download it. Goes on left end of spindle.Īll part number and ID's came from the 618 manual which should be in Downloads. Goes on the pivot stud for the tumbler bracket.ĩ is M6-100-32 Gear.
Part numbers of the Change Gears will be M6-101-nn where nn is tooth count.ħ is M6-101-16 Compound Gear. If not, 10 and 11 or 12 are probably M6-59 and M6-60. These together engage and disengage the half nuts.Ħ, 10, 11, 12 are Change Gears if they have two keyways cut in them. The cross feed screw runs in it.Ĥ is the M6-29 Lever and 5 is M6-38 Cam (AKA Scroll). The spring and ball are the detent for the cam.Ģ is a pair of M6-12A half nuts (M6-12X means a pair or a set)ģ is two M6-19A Nut. Alongside of it are the two screws that attach it and 9-61 Spring. It retains and guides the two half nuts and the cam (scroll).
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