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Re: (ET) And *another* magnet drops.....

I am looking to get rid of my elec-track. 

I have a tiller, plow, mid mount deck. (Tall skinny motors?) a spare 
motor. An E15. It’s a bit rough. 

I am 45 minutes north of Boston. 

It’s still useable. The deck linkages need some work/attention. If it was 
4WD I could use it. 

Also have saft 100Ah ni cad modules for it. Never installed 

I’d be interested in offers. 

Thanks,

Seth 

Sent from my iPhone. Please excuse the brevity and typos. 



> On Apr 14, 2024, at 10:42, Christopher Zach via Elec-trak <elec-trak 
> cosmos phy tufts edu> wrote:
> 
> After mowing for a bit I noticed the central motor was not running 
> right and overheated. Lifted the deck to check it, felt a small clunk as 
> I moved the blades clockwise then counterclockwise.
> 
> Means one thing: Magnet dropped. Large diameter motors just. do. this.
> 
> Popped off the lid to check: Yep one magnet is loose. I'm sure when I 
> drop the blade and armature this morning I'll find that the magnet has 
> what I think was double-sided tape holding it to the wall and that tape 
> has disintegrated.
> 
> Fortunately repair is easy:
> 1) Mark the top of the magnet BEFORE removal. You can't install it 
> rotated and expect it to work.
> 2) Remove magnet, clean off the tape with the wire brush on your grinder
> 3) Clean off the rust and junk from inside the motor housing with your 
> small wire wheel on a drill.
> 4) Clean everything so no dirt.
> 5) Find your magnet gauges. For me it's two custom cut plywood bits to 
> gauge the sides to the good magnet and a third that goes across the 
> magnets to provide pressure.
> 6) Test fit the magnet to verify gauges and pressure against motor wall
> 6) Mix up a hunk of JB Weld.
> 7) Apply to back of magnet
> 8) Using gauges put the magnet in and make sure it's oriented with your 
> Top marking on the top....
> 9) Tap in the center gauge
> 10) Wait 8 hours
> 11) Re-assemble
> 
> I wish there were a way to get all of my magnets to drop but that's life 
> with an Elec-trak. By the way if you have motors with broken or dropped 
> magnets don't chuck them, I will buy them as spares.
> 
> Off we go.
> 
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