My assumption is this: You have the spinning main rod. While the shift key is not pressed, there should be no contact between rod and key. When pressed, the key "gets catched" by the rod (you could also describe it vice versa) which activates the shifting. Now in your case for some reason the catch happens although the key is not pressed. So take a good look at the shift keys, how and when they catch the rod. (probably better to move the rod by hand for this.) I think, something got gooey over time and makes a connection between shift keys and rod where there should be none unless the key is pressed. Hope this makes sense to you.
The spinning rod on mine is in the center. There is a rotating cam on one end of the rod, which contacts the shift lever, with a spring concentric with the shaft that puts pressure on the cam. One end of the spring is free-floating (it shouldn't be), but I can't see any place to anchor it to. If I rotate the spring by hand (with the motor running), I can shift the carriage up and down. I need to find out where the end of that spring goes.
My assumption is this: You have the spinning main rod. While the shift key is not pressed, there should be no contact between rod and key. When pressed, the key "gets catched" by the rod (you could also describe it vice versa) which activates the shifting. Now in your case for some reason the catch happens although the key is not pressed. So take a good look at the shift keys, how and when they catch the rod. (probably better to move the rod by hand for this.) I think, something got gooey over time and makes a connection between shift keys and rod where there should be none unless the key is pressed. Hope this makes sense to you.
ReplyDeleteThe spinning rod is at the front of the typewriter btw.
ReplyDeleteThe spinning rod on mine is in the center. There is a rotating cam on one end of the rod, which contacts the shift lever, with a spring concentric with the shaft that puts pressure on the cam. One end of the spring is free-floating (it shouldn't be), but I can't see any place to anchor it to. If I rotate the spring by hand (with the motor running), I can shift the carriage up and down. I need to find out where the end of that spring goes.
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