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Rebuilding a 109 and need some info


 

I picked up a basket case 109 on ebay as a nostalgia project.? Model 20630.? my first lathe was a 109 and i sold it when i bought my Logan.? i suddenly got a notion that i wanted one again after watching Hand Tool Rescue rebuild on on youtube.? This pile of parts was rusty and the previous owner gave up on the rebuild, but i am going to get it done.? i already have broken down the 3 jaw chuck and spindle that were really stuck together.? Now i am working on the tailstock.? The tailstock ram is wedged in very tightly by the spindle keyway screw and, probably, some rust.? i gave up on trying to get the spindle keyway screw out nondestructively after soaking in penetrant, heat, and easy out failed to get it unstuck.? I basically put it on my mill and routed most of main body of the screw and am now easing some smaller drill bits down to get the pin out.? i am hoping to save the original threads in the tailstock body but my back out plan is to drill it out larger and thread for a larger screw.? But my question is:
Can anyone post the original dimensions of this screw for me?? Thread pitch, length, and how long the pin is and its diameter.? It would be part number A3456 in the manual.? I would appreciate it.??


 

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I can take no credit for this file I am just sharing it as it was shared with me

On 7/23/21 2:31 PM, Russell Reid wrote:

I picked up a basket case 109 on ebay as a nostalgia project.? Model 20630.? my first lathe was a 109 and i sold it when i bought my Logan.? i suddenly got a notion that i wanted one again after watching Hand Tool Rescue rebuild on on youtube.? This pile of parts was rusty and the previous owner gave up on the rebuild, but i am going to get it done.? i already have broken down the 3 jaw chuck and spindle that were really stuck together.? Now i am working on the tailstock.? The tailstock ram is wedged in very tightly by the spindle keyway screw and, probably, some rust.? i gave up on trying to get the spindle keyway screw out nondestructively after soaking in penetrant, heat, and easy out failed to get it unstuck.? I basically put it on my mill and routed most of main body of the screw and am now easing some smaller drill bits down to get the pin out.? i am hoping to save the original threads in the tailstock body but my back out plan is to drill it out larger and thread for a larger screw.? But my question is:
Can anyone post the original dimensions of this screw for me?? Thread pitch, length, and how long the pin is and its diameter.? It would be part number A3456 in the manual.? I would appreciate it.??


 

Thanks. This should help my rebuild slot.