Craftsman hand sander - SHOCKING side effect

Mongo brother Kevin find this old Craftsman hand sander/polisher from Sears Roebuck and CO.
Model: 110.7820
He say it shocks you when using it. That NOT GOOD! Mongo not going to plug it in to test it.
When working on appliances that are known to shock/electrocute you, BE VERY SAFE. Wear proper PPE. De-energize the appliance before working on it. Do not investigate or repair without being properly trained. Electricity can be dangerous. SAFETY FIRST!
Mongo start with testing the wires for shorts to each other and shorts to ground/case. Multimeter on resistance (ohms) and touch a lead to each wire and another wire. Then each wire and the case. Sure enough one of these has a reading. For AC motors each lead should read OL or infinite resistance. If you get a reading like this example then the windings are compromised.
This very dirty so Mongo clean it up really good to get better view and remove potential for carbon tracking. Carbon tracking is when electricity travels on the dirt and debris (carbon) on the outside of an electrical devices intended path. Like exposed wires in a motor that has a lot of dirt on it. After cleaning it still has a short to case.
This sander is not safe to use and not cost effective to repair. (it would need to be rewound) so going to save it for parts.
Hopefully this video help you if you have an electrical tool that is shocking you.
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Mongo thank you!

[@jussikuusela7345]

The ground pin was probably snapped off to stop the sander from tripping the GFI.

[@mongofix]

ooohh ya, good call!

[@jussikuusela7345]

@@mongofix also that way the plug might somewhat fit in with inverted polarity which could shift the fault point closer to neutral to make it less tingly... it would still be like playing Soviet roulette.