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Smith Corona XL 1000 Making Noise?

When plugged in unit makes humming noise? What is the cause?

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February 28, 20170 found this helpful
Best Answer

The humming noise is natural; there is an electric motor inside the machine that runs the operation. If the machine is working, and isn't run off a computer chip, don't worry; it's just the motor. When I got my first mechanical-electric typewriter, it was vibrating and humming when I turned it on, and I got worried, so I took the lid off, and turned it on again after bypassing the safety switch (DON'T BYPASS THEY SAFETY-SWITCH); and looking inside. there's a little electric motor or some sort inside all electric typewriters, and sometimes that motor runs operates the keys (you'll know because the typewriter will look like a manual typewriter with a chord hanging off of it); that motor hums, and vibrates a little.

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Think of it like a cat: if it's humming (purring), and vibrating, that means it's happy. Or think of it as a person: humming typewriter=happy typewriter; don't worry, nothing is wrong. Sometimes the humming was intended, so you'd know the typewriter was turned on; like how your car's blinker clicks to let you know it's turned on.

 
February 28, 20170 found this helpful
Best Answer

To update my answer: I have almost the same typewriter, The Smith-Corona Coronet XL "CoronaMatic". This was a typewriter I literally pulled out of someone's trash, ribbon and all, and it worked like new, looks like new. There is indeed a motor on the back of the unit, the motor indeed, does hum. The humming means it's a happy typewriter, working fine, and is indeed receiving power from the electrical outlet. The motor is in the rear-left corner of mine. My backspace key got stuck though, recently, and I need to get it looked at by the typewriter repair store down the street tomorrow.

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Enjoy your typewriter, and remember to give the types (the hammers that swing up and strike the paper) a light oiling every month or so. Just one or two drops at each end of the rack (the spot where the types hinge on the machine, at their base), and take your finger, and wipe the oil from one side of the rack, along the hinges of the types, to the other side, then do the same the opposite direction. I'd suggest Zoom Spout High Quality Turbine Oil; that's what I use on mine. Be careful not to over-oil the machine though. This keeps the machine operating; and thus, keeps the machine humming, and keeps you typing.

 

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