Remove the motor brushes and look to see if ther are clean, no arc marks ir heavy pitting. If they are clean, re-install the and spin the motor by hand. It should turn easily.
You can also clamp one of the leads with a meter and you'll know if it's drawing excessive current during free-air running (no-load).
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Age verifier Northern Alberta
Democracy is two wolves and a sheep discussing what's for dinner.
Freedom is the wolves limping away while the sheep reloads.
Never confuse freedom with democracy.
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