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Pillar Drill Not Working

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Stanleymonkey

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Out of the blue my pillar drill has stopped. Didn't mis-treat it or over load it.

Electricity is flowing in to the switch. Switch works and electricity flows to the motor when the switch is on.

Nothing happens though - except a steady low hum.

When off the drill, pulleys and motor turn freely.

When on - it can all be turned by hand but it wants to kick back to the same position.

Does anyone have any ideas??
 

CHJ

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Is it a simple low power induction motor?

If so start/run capacitor is the first suspect, would expect it to run on no load, possibly in either direction if spun up by hand.
 

Stanleymonkey

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It won't run if spun up - wants to return to the same spot.

Not sure about the type of motor - is there an easy way to tell?
 

CHJ

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Stanleymonkey":1ozi3wvg said:
Not sure about the type of motor - is there an easy way to tell?
Motor rating plate? picture may help.
 

guineafowl21

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CHJ":1fedyn8m said:
Is it a simple low power induction motor?

If so start/run capacitor is the first suspect, would expect it to run on no load, possibly in either direction if spun up by hand.
^^^ this, almost certainly. You have to give it a really good spin, and it should run in either direction.

If you have a multimeter with capacitance measurement, try testing the capacitor against the rating on the side. If it doesn’t have that feature, use resistance mode. A bad cap will be open or short, a good one will show a rising reading, then the same if you swap leads.
 
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