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Re: (ET) Small fire and motor overload
Yes, it is quite easy. Just remove the pulley and pry the seal out....
On December 31, 2019 at 7:23pm -0500, you wrote:
>Motor is back together and working on the tractor. Small oil drips from
>the transmission drive pulley, can that seal be replaced without having
>to pull the whole transmission apart?
>
>C
>
>On 12/29/2019 3:20 PM, Charlie wrote:
>> To the best of my knowledge, porcelain and glass are the only insulators
>> better than high temperature plastics.
>>
>> Gutta percha is awesome stuff but won't hold up as well as plastic in
>> the operating environment of my tractor.? Wood can rot, swell, split or
>> catch fire and tanned leather will corrode metal.
>>
>> The generic plastic OEM ones last 40 years or so in hard use :)
>>
>> --Charlie
>>
>> On Sun, Dec 29, 2019, 1:16 PM Jim Coate <lists freerangeelectric com
>> <mailto:lists freerangeelectric com>> wrote:
>>
>> Yes, I do have NOS square spacers available :-)
>>
>> Jim Coate
>> (aka The Electric Tractor Store)
>>
>>
>> On 12/29/2019 8:25 am, Charlie wrote:
>> > Jim might still have some of the square spacers.? I once
>> successfully
>> > made one from the square head of a giant zip tie, but the one Jim
>> sold
>> > Pete was better.
>> >
>> > --Charlie
>> >
>> > On Sat, Dec 28, 2019, 5:40 PM Chris Zach <cz alembic crystel com
>> <mailto:cz alembic crystel com>>
>> > wrote:
>> >
>> >> Man I am glad I fixed the brakes. Today I went up on the hill
>> behind
>> >> my
>> >> house to pick up some fallen trees. Drove up the 20-30 degree
>> path,
>> >> picked up 3 5 foot length logs, drove back down and to the
>> house no
>> >> problem.
>> >>
>> >> Decided to try 6 logs. Much heavier, but since they were at the
>> top
>> >> of
>> >> the hill it wasn't too big a deal, it's a downhill trip with the
>> >> load
>> >> and I can just put it in L and go down the hill.
>> >>
>> >> Well, got towards the bottom of the hill and smelled smoke. And
>> saw
>> >> smoke coming from under the tractor. About this time the motor
>> cut
>> >> out
>> >> and I got to use the brakes to stop the tractor and load. Good
>> news:
>> >> The
>> >> new brake kit allowed me to finish the trip down (in LL, no
>> motor)
>> >> and
>> >> figure out what had happened.
>> >>
>> >> When I checked underneath there was a small fire by the brush
>> studs.
>> >> It
>> >> was then I remembered that the top spacer was broken so I used a
>> >> short
>> >> length of auto coolant hose to act as the spacer. Apparently the
>> >> motor
>> >> side had gotten hot, the lower washer loosened, the coolant hose
>> >> caught
>> >> fire, and the motor shorted itself out.
>> >>
>> >> Dragged it back in with the gas tractor (sans load) and pulled
>> the
>> >> motor. Sure enough the rear stud was burned, so for now I took
>> the
>> >> stud
>> >> and insulating spacers out of the E15 motor and fixed the E20
>> motor.
>> >>
>> >> Will test tomorrow, but it did point out one interesting issue:
>> When
>> >>
>> >> going downhill you are in regen mode and the motor is working
>> just
>> >> as
>> >> hard to charge the batteries. Add a half ton of logs behind you
>> and
>> >> it's
>> >> a pretty significant load.
>> >>
>> >> Speaking of which, is there a source for those insulated
>> washers and
>> >> the
>> >> square spacer? I'm assuming they are high temp plastic or resin
>> to
>> >> hold
>> >> up in the motor.
>> >>
>> >> C
>> >>
>> >> _______________________________________________
>> >> Elec-trak mailing list
>> >> Elec-trak cosmos phy tufts edu
>> <mailto:Elec-trak cosmos phy tufts edu>
>> >> https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak
>> > _______________________________________________
>> > Elec-trak mailing list
>> > Elec-trak cosmos phy tufts edu
>> <mailto:Elec-trak cosmos phy tufts edu>
>> > https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak
>>
>> --
>> Jim Coate
>> www.FreeRangeElectric.com <http://www.FreeRangeElectric.com>
>> Home of The Electric Tractor Store
>>
>> _______________________________________________
>> Elec-trak mailing list
>> Elec-trak cosmos phy tufts edu <mailto:Elec-trak cosmos phy tufts
>> edu>
>> https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak
>>
>>
>>
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>>
>
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