The adventures of a Jeep and its driver.
I used some @bluedemonweld Aluminum Bronze TIG rod to repair the worn splines on this shaft from the power feed clutch on an 80 year old lathe. I have never done something like this before, and I think it went well and came out OK. Check the link my bio for a video.
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This is a splined shaft that is part of the power feed clutch on the 1941 South Bend lathe I am restoring. The splines have been rounded over at the top after 80 years of use. I’m thinking I might TIG braze some aluminum bronze on them and hand file them to shape. I’ve had good luck using it on cast steel, it should work here.
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In this episode of the 1941 South Bend lathe restoration/refurbishment saga, I disassemble the apron. The apron has several gears and levers that are used to move the saddle and cross slide. A number of these parts are held together with taper pins that can only come out one way, unless the are busted in multiple pieces and no longer line up with the holes. The ride on the struggle bus was not always fun.
Fire! I needed some heat to disassemble parts of the apron of my 1941 South Bend lathe. There were a number of taper pins that wouldn’t budge, no matter how hard I hit them. I used some heat to try and expand the material around the pin, making it a little easier to get. Worked most of the time.
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Now that the quick change gearbox is out and disassembled, I can spend some time cleaning up the paint and remainder of the grease. I’m going to repaint this with some @rustoleum oil based enamel
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I disassemble, with a little trouble, the single tumbler quick change gear box on my 1941 13″ South Bend lathe. The gear box allows you to control the speed the lead screw rotates, in relationship to the speed of the spindle. This allows you to accurately cut threads for screws, bolts and nuts as well as adjust the feed rate for facing and turning operations. I had a bit of trouble with some seized parts and things got a little hot.
Spent some time removing and disassembling the single tumbler quick change gear box from my 1941 13″ South Bend lathe. The gear box allows you to accurately set the rotation of the lead screw in relationship to the speed of the spindle. This makes it a snap to cut threads as well as set the feed rate for turning and facing operations.
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Not sure what I want to do about these gears. I’d really like to get the shafts out. I may try a gear puller and see if that won’t work them loose. But then I’d still have to get them back in once I clean them up.
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In this video, I disassemble and clean the main gear train. These gears take power from the spindle and feed the input to the quick change gear box that ultimately powers the lead screw. These gears also include the reversing lever that can disconnect power to the lead screw as well as reverse its direction. I wasn’t able to fully disassemble some of the gears since I don’t have a press large enough to press out a few gear shafts. I believe I can still clean all of the parts that need cleaned.
The top dial is for the cross slide on my 1941 South Bend lathe. The bottom one is for the compound. If you look close, you can see they are different scales. The cross slide feed screw was changed from the factory 10 threads per inch with an indirect reading dial, to an 8 thread per inch screw with an direct reading dial. For the cross slide, the direct reading dial is a little easier to work with. For every turn of the handle, the tool moves in 0.125 inches, but would REMOVE 0.250 inches off the diameter. You would rarely, if ever, measure the RADIUS of the part you are turning, so this configuration makes the math much easier.
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