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Thread: 1959 Model C hercus motor.
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15th Feb 2019, 10:02 PM #1Member
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1959 Model C hercus motor.
I've got a 1959 C model with the original motor and am looking at possibly upgrading to a new motor. Mine has a capacitor mounted on the top and seems to have some sort of solenoid as when i shut it off to make adjustments etc, i sometimes have to wait for some considerable time for the solenoid to "click" before the motor will operate again..... can this motor be serviced or should i also look for a new one? Ideally i'd like to keep the machine as original as possible.
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16th Feb 2019, 04:49 AM #2Intermediate Member
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- Aug 2008
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- Perth
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Zumanity, sounds like the centrifugal switch is sticking. If so that would be something that you can service. You only need to remove the end cap from the end of the motor and clean and lubricate the switching mechanism.
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16th Feb 2019, 10:30 AM #3Member
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- Newcastle NSW
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Thank you Benhoskin. That gives me somewhere to start
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16th Feb 2019, 12:24 PM #4Member
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16th Feb 2019, 12:25 PM #5Member
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So am i correct in assuming that i undo the 4 nuts on the back of the motor and remove the whole back off to get to the mechanism?
Is there anything i need to pay attention to while doing this?
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16th Feb 2019, 05:15 PM #6Member: Blue and white apron brigade
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Sorry to state the obvious but disconnect it completely from the mains.
On some motors you have to take the internal rotor out with the motor end cap. This is far easier to do with the motor out of the machine, take teh pulley off and then tap the shaft end where the pulley was with a wooden mallet and knock the rotor and motor end cap off.
When you open it there may be wavy spring steel washer on the ends of the shaft. Pay particular attention where they go and very lightly lube these with bearing grease when replaced.
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16th Feb 2019, 06:17 PM #7Member
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Hi BobL thanks for your response. I forgot to update the post but i managed to get the motor out and apart. I discovered quite a bit of thick grease binding up the mechanism for the centrifugal switch which i cleaned out and sprayed some WD40 over. The bearings in the end cap were coated in a good covering of grease that looked fairly recent so i didn't add anymore to that. The switch now operates every time as it should and now that iv'e had it apart if anything arises in the future i know how to pull it down and service it. Youtube is a wonderful resource!
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