All Replies on Jet 1014 Lathe - replacement motor upgrade (JWL1220-135)?

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Jet 1014 Lathe - replacement motor upgrade (JWL1220-135)?

by cross_wings_wood
posted 10-01-2018 04:04 PM

5 replies so far

View Wildwood's profile


2891 posts in 2992 days

#1 posted 10-01-2018 09:08 PM

Trip to electric motor shop for rebuild might be the least expensive option!

-- Bill

View Nubsnstubs's profile


1732 posts in 2587 days

#2 posted 10-01-2018 10:42 PM

You’re already buying stuff from Graingers. If you can’t find a motor there, you ain’t ever gonna find one. ............ Jerry (in Tucson)

-- Jerry (in Tucson)

View Newbie17's profile


53 posts in 1318 days

#3 posted 12-18-2019 03:47 AM

What did you end up doing? I’m in the same predicament. It appears the JWL1220-135 Motor might fit in the 1014.

View JoeK1's profile


29 posts in 1272 days

#4 posted 12-19-2019 05:57 PM

I believe the motor is a Permanent Capacitor Motor, meaning that the capacitor and starting winding are always in the circuit = lower cost design and smaller physical size motor. Their is no centrifugal switch or relay to drop out the starting winding. This design depends on the impedance of the system to control current flow in the starting winding during normal running operation. Therefore microfarad value of the capacitor is very important. Increasing the value will allow higher current which will be in opposition of the running windings therefore higher heat is generated and less power output of the motor. A lower value will result in lower starting torque performance. The starting torque is already low, just hold the hand wheel and apply power for less that a second. There is no difficulty in preventing the motor from turning. Don’t try that with a DC motor, normal split phase or capacitor start motor.

Personal experience: I had a 1014 that the performance degraded and developed noise in startup and running. I was using a heavy chuck 6+ lbs and wet wood and probably overstressed the capacitor with the high inertial load on start up. I have a expensive meter that will measure capacitance and the value checked out but at a much lower voltage. I couldn’t locate a direct replacement capacitor that would fit under the motor cover, the Jet was $35 + shipping. I tried a couple of other capacitors that were close in value and couldn’t eliminate the problem. I gave up and got the jet replacement and problem went away. Not saying that this is the cure for your situation.

View cross_wings_wood's profile


114 posts in 1084 days

#5 posted 12-20-2019 09:53 AM

What did you end up doing? I’m in the same predicament. It appears the JWL1220-135 Motor might fit in the 1014.

- Newbie17

Took the motor to a local electric motor repair shop and they determined it needed a new cap. They sold me a replacement (although a bit larger and wouldn’t fit into the original metal cover) and my 1014 works great now. Since it was larger, I just tie-wrapped it to the back of the motor.

Suggest starting there too, caps are high potential points of failure points and relatively inexpensive.

-- Richard, Austin TX - "Every repair job is really just an upgrade oppty in disguise!"

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