How would I go about replacing old plug in wires with only two small prongs like picrel? I collect a lot of vintage tech and I'm never too sure how safe these things are.
>>3001993It's 1970 and you don't have internets. What's your best guess?
>>3001997I'd assume you'd remove the wiring from the plug, but I don't know much about electronics so I don't know if they have less wires or something since they're a two short prongs, when I was trying to make it like current plug-ins with one short prong, one long prong, and then the grounding prong.Just don't want to make some retarded ass mistake and have my house burn down when the very reason I'm trying to replace these old cords is how unsafe they are.
>>3001998Buy a new 2-prong, polarized plug, or cut the socket off of an extension cord and strip the wires. Use wire nuts or wire levers (Wago) to connect them together, or screw the wires onto terminals, depending on how they're currently attached. Finally, make sure the cable is secured in a strain relief mechanism near the motor.Hot to hot, neutral to neutral, ground omitted.
>>3001993Are you the antique fan guy? Is this yet another fan?Regarding your plug:Why out of all things would you doubt the plug? What failure mode do you suspect?Anyways:Those plugs are often overmolded. You cant do that at home.Your options are cutting the wire and adding a new plug which will require only a screwdriver to connect and assemble. Alternatively you can remove the entire cord from the device and get a new cord with an overmolded plug and replace the entire cable and plug part.Honestly I'd trust the cable insulation much less than the plug. Additionally I'd trust the fan motors insulation less than the plug too.
>>3002006>Additionally I'd trust the fan motors insulation less than the plug too.ThisReplacing the plug is only half the job, if you're concerned about degradation leading to a fireBest to open the case over the motor and replace the wiring from there to the plug, including the plugTake pictures before you disconnect wiresTest somewhere you can get away with some minor smoke damage, where you can rapidly cut the power and toss a fire blanket on itIt's rare but old motors can be ceased and smoulder when first runningFYI if you keep on this path you'll be back to learn about motors. That's where the real fun starts
>>3001993Looks good to me. Run it. If there is an issue with the cord where the insulation is cracking or a short, then replace the cord with any other properly rated 2 conductor wire and a new polarized plug on the end like the other anon said.
>>3001993Watch this: https://www.youtube.com/watch?v=kfG37y1Yt-4The plug is fine (if that picture is the unit in question). That unit is from before the era of polarized plugs. They just work and don't give a fuck what way you plug them in.Now, if the lack of a ground has you concerned, and it is a legit concern, replace it. The neat thing about old motors like this is they basically do not care how you wire it. Hot and neutral are the same thing from its perspective so you can't fuck it up. Just open the motor up, find where the wires connect, disconnect them, and wire in a three prong power cord.The ground goes to the metal case or frame of the unit. If there is a screw inside the case in a convenient spot you can use it. Crimp or solder a ring terminal on the end of the ground wire and use the screw to secure it to the case. If there isn't one there are two good options: solder it to the case or put in your own screw. The first is simple: find a convenient spot, remove any paint/rust/coating, scratch it so the surface is nice and rough, and solder it down.Example: at 12:45 of this video: https://youtu.be/RaEcrKjlHaI?t=765 Or, the second option, drill a hole and drive a screw into it and use a ring terminal on the ground wire as I mentioned above.The original wires may be soldered into the switch. That is legit the best way to do it but wagos or wire nuts like >>3001999 suggested will work if you keep a bit of the original wires in place to attach the new wires to. Heat shrink tubing (picture related) can fix the old wires. Heat shrink tape is also a thing but it is not as nice as the tubing.*DO NOT* try to replace the windings of the motor or the wires going from the motor to the switch. That never goes well. If the insulation on them is suspect use heat shrink tubing to fix it. Electrical tape can also work but it is an inferior solution.
>>3001993it is a motor. it does not matter which side is hot.
>>3001999>Use wire nuts or wire levers (Wago) to connect them togetherconnector jew bot would suggest using wagos instead of soldering
>>3002024>*DO NOT* try to replace the windings of the motor or the wires going from the motor to the switch.this has got to be GPT because who the fuck is going to rewind a motor to change the plug, 0% chance youre human
>>3001993If you want a three pronged plug then replace the entire cord with a three wire cord and ground the housing to the ground wire with a screw or solder.If you dont wanna do that then just leave it.
>>3002334I find the notion that if you have leaky insulation in motorwindings you can just, somehow, slide a piece of heat shrink all the way in there, magically without at least partially unwinding and causing even more issues.
>>3002342*equally amusing
>>3002333>wagos instead of solderingOnly a jew bot would suggest soldering to someone who can't figure out how a 2-prong power cord works.
>>3001993Unscrew the back of the fan. The cable should be held with two small screws - unscrew them. Now take a brand new wire and plug and do the reverse procedure.Alternative - go to the store and buy a plug. Cut the cable bellow the old plug, shave off some insualtion with an utility knife and attach the new plug.Every hardware store sells replacement plugs and cable.
When I have things like old fans that I throw out I always cut the cords off and sometimes save a couple. They're handy for things like this. It's a sort of recycling I suppose, and cutting the cords off will help deter people from wanting to tinker with shit and start a fire with something that I threw out for a reason.
