As summarized, I'd like to run a 240 volt motor with 3 prong twistlock plug off my Generator that has a 240V 4 prong twistlock outlet, Have purchased a 4 prong dryer plug & cord. Not sure what function the extra lead performs, any help is greatly appreciated, Thanks...

How do I wire a newer four prong dryer outlet to replace an older three prong outlet?

How do I make an extension cord from my 4 prong 240 twist generator outlet to a 3 prong 240 outlet for my radial arm saw?

In my Laundry room I have a 4 prong plug for my dryer. I have a 3 prong plug on my welder. They are both 220 and I have everything I need to make an extension cord in cluding wire, plug and receptacle and gang box. I know how to wire the ground but am not sure where to put the black and white...

I have a dryer I haven't been able to use. I moved into an older house and bought a wall outlet to match the plug that's on the dryer. The problem is, any way I rewire the outlet with given wires it won't work.