Re: (ET) sickle bar motor

[Christopher Zach <cz bunsen crystel com>]

I sent Mike a massive write-up on how to fix the magnets (same thing was 
on my Elec-trak vacuum). If you swap the old motor I'd be happy to take 
the old one, fix it, and keep it as a spare here.

The trick is this: Get a piece of say plywood and cut a strip that is 
just wide enough to fit between the two remaining motor magnets. You 
know, the space between the magnets against the motor shell.

Then cut another piece of plywood to press against both magnets when 
placed in the center of the motor. The idea is you're building shims 
that would hold the magnets in place when you glue them.

Now try to use those shims with your two magnet parts and the remaining 
good magnet. THE BIG IMPORTANT THING IS THE BROKEN MAGNET HAS TO GO BACK 
INTO THE SHELL IN THE SAME ORIENTATION IT CAME OUT. Normally there is 
yellow paint or sealant stuff on the edge of the magnet that was facing 
the closest end of the motor shell. That's the "North South" orientation 
and if you install the magnet backwards the motor will not work.

When you're sure you have the magnet pieces back in and the shims hold 
the magnet both in line with the other one and pressed against the shell 
that's when you get the JB Weld, mix it up, and put it on the magnet 
back and the shell. I recommend polishing off any junk on the back of 
the magnet and any rust on the shell. Put the JB weld on the broken 
magnet parts and press it all together as you put in the shims which 
will (a) hold the magnet parts together and (b) press the whole thing 
against the wall. Align it vertically with the other magnet and wait 24 
hours.

Then you're in business.


On 3/10/2025 7:03 AM, Harold Zimmerman - Clean Power Supply wrote:
>  Good Morning Mike,
>
>  Without researching this too hard, I think this motor is either an 
> E10M or E12 (permanent magnet version of course) drive motor. If you 
> give me the length of the magnet housing without the end caps and the 
> length of the magnets themselves I could tell you and maybe help you 
> out. There may also be a model number inside the wiring cover which 
> could be helpful.
>
>  Sincerely,
>
>  Harold Zimmerman
>
>
> On 3/8/2025 5:23 PM, Mike Finck via Elec-trak wrote:
> > Gentlemen,I am trying to resurrect a Haban sickle bar attachment.  My 
> > immediate concern is the motor.  It has a broken magnet and bad 
> > bearings.  Three different rebuild shops have declined. I am pursuing 
> > 3 different avenues.1. Does anyone have more/any specs for this 
> > motor?  HP, rpms? GE serial/model number? Perhaps I could find a 
> > suitable substitute or parts.2. Speaking with others it seems there 
> > are only a couple original motors around. Any additional info on 
> > existing/surviving motors?3. The broken magnet seems the hardest 
> > puzzle piece to solve. Any suggestions?Thank you for any input.
> > As an aside, I (my ElecTrak collection) was the cover story of 
> > "Vintage Tractor Digest" magazine March/April 2025 issue. See 
> > attachment.
> > Mike.
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