When I press the return button, the typing/ribbon mechanism goes past the left margin stop and gets stuck. It releases when the "tab" button is pushed. If the "exp" button is pushed, the carriage stops like it's supposed to.
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Re: IBM Selectric II-return goes past the margin stop
The margin release mech. is probably gummy and allowing returns to go past the margin. If thi is a dual pitch machine see if the pitch selector lever will move easily. If not use some WD40 on the margin rack.
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Sounds like the return lever arm is not putting enough pressure on the return clutch, or the clutch is slipping. The exp key uses the same clutch but the pressure comes from your finger. Theres no way you can fix this yourself. Get an IBM mechanic.
Several possible causes. Needs lubrication most commonly. Sometimes the velocity cable is hung up on the left side and under the carriage. remove the ribbon and shine a light down on the left side and look for a cable hung up on the pulley, make a hook with a paper clip and lift the cable up and past the pulley
It sounds like a possible tab knockoff problem. This could be a small spring loose or broken in the escapement portion of the machine or the final knockoff in the tab unit out of alignment. You can try setting a tab before the end of the carriage by holding the carrier in place and using your other hand to press Tab Set, but the alignment may be just far enough off to keep you from actually setting the tab. One other thing that sometimes will cause the problem is the pitch setting lever is between the two pitches. Make sure your pitch setting lever is seated in its home position.
this one is hard to diagnose without actually seeing it, however if it is hanging up on that slider, you can simply remove the slider without any harm to your machine. the slider is a throwback to when "ditto" machines were used for printing. all it does is stop the ribbon from working when it is in the "S" position, and you can do the same thing by removing the ribbon. to remove it, move it to the left and pull till it comes out. if the spring that is attached doesn't come out with it, just pull it out.
however, if the carries goes past the margin all the way to the left of the machine, then this is not going to stop that. what usually causes that is a little lug that faces the carrier on the l. h. margin set lever, if there is a crack in it, it will need to be replaced. also check that when you hit the "mar rel" button the margin rack pivots up then back when you release it. if the rack is stuck in the up position, then that is your problem.
The return clutch torque limiter is off or broken. If you take the right dust cover off it is on the turning hub around the middle of the typewriter. a small spring about 1.25 inches long with a hook on the end. I have been fixing these for 35 years. good luck. Lawrence
Selectric I and II type elements are identical (88 char) where Selectric III uses a different element (96 char). The 88 character element will have white lettering and the 96 character element will have yellow. Directly underneath the lift-up tab to remove the element will be a 3-digit number. That's the last 3 digits of the element's part number, which will be preceeded by 1167 for 88 character, or 1352 or 96 character. For example, if you have a '052" stamped on the element, and it's an 88 character style, the P/N will be 1167052.
The correcting mechanism is an intricate additional function of the backspace function. To test it/adjust it/or repair it requires the machine be hand-cycled using a hand cycle wheel which is screwed into the right hand side operational shaft. It's unlikely that an un-trained party would be successful repairing this..