ET2 Electric Massey

dh1

dh1

Electric Tractors . from Markham Ont. Canada
Staff member
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I still have this thing, 6yrs now and the batteries are still good, the main thing I have used this for is plowing snow off the driveway, now that I have the GE tractors it just sits around and takes up space, the GE tractors are better at pushing snow, there heavier.
So what to do with it, well I tried the GE tractor at tractor pulling and they don't do so good, the drive belts slips, if you get the belts so they grip then I find it doesn't have enough power, moves too slow. Motor is rated at 1.2hp.
So I tried ET2 at the pulls and it does better, has more power and moves faster. It's motor is rated 2hp continuous, 10hp peak.
So I switched the 2hp motor for a 6hp motor and it does even better, the heaver the class the better it does, but moves a little slower than with the 2hp.
So I changed the gear ratio between the motor and trany to speed it up a bit, I run in 4th/top gear at the pulls.
Problem is the 6hp motor needs 48volts and I only have 36volts, so I'm down on power and rpm but I'm right in the middle of the pack at the pulls.
Need to get a 4th battery in it.
At 36volts rpm=2500. At 48volts rpm=3500.
Motor rated 6hp continuous and 15hp peak at 48volts
So I have decided to use ET2 for tractor pulling and see how good I can get it to do. Got to do something with it.
Current pictures
Electric Massey 011.JPGElectric Massey 008.JPG
Electric Massey 009.JPGElectric Massey 010.JPG
 
They have 850, 1050 and 1150 lbs classes.
Right now with me on it, weights 836lbs, I had to remove the lift linkage to get that weight.
Adding a battery I think will add 50lbs +/-.
I have some ideas on removing more weigh from the tractor to try to get it in the 850 class. BUT.
I do better in the 1050 class as I find it a little heavy in the front, when I add weight for the 1050 class I add to the rear of the tractor.
So when I add another battery that weight goes on the front, only place I have to put another battery.
I might remove the 3 group 27 batteries and replace with 4 group 24 batteries, there a little lighter, smaller and might be easier to fit in plus I won't be adding as much weight to the front. ???
Winter time project, there's 1 more pull to goto and I want to try it with the drive pulley ratio change I did.
 
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Well it's retired for this yr, last pull yesterday I got 3rd in 850 but did poorly in 1050, track was clay and the front of my tractor didn't come up at all, most others did. A lot of them ran out of power near the end.
So now I have the winter to tinker with it.
 
It doesn't sound as if you were lacking power, or need the extra 12 V. It may be better to move the extra weight that you have available to the tires?
 
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Good to hear from you Alan. I was beginning to think that you gave up an garden tractors. ???

Anyway I'm looking at putting 4 x group 51 car batteries in it, total pack weight compared to what I have now would be 30 to 35lbs less. So to keep the same tractor weight I would ad to the back, weight transfer from front to back.
With the current pack I can go down the track 20+ times and still have lots of battery power, with the group 51's it would be less, 5times ??? I only need to go down a 2 times, once for each class unless there is a tie then I'd need to go down again, so I figure a max of 4 times down the track.
Tractor runs at full power for less than 30 seconds each pull.
That's my thinking ???
 
Sounds logical.
Is there a current reduction with the 51's?
If so, I assume it's not enough to affect operation?

As for me missing. Little soul searching is all. Went to a mountaintop to study my navel with a group of guys that looked like Stella's bald brothers in togas...
 
As for me missing. Little soul searching is all. Went to a mountaintop to study my navel with a group of guys that looked like Stella's bald brothers in togas...

View attachment 127


And you made it out of there alive with no side effects? Man you really are 1 hell of a guy.

Max current the motor is rated to draw is 330 amps, group 51 batteries has a 500+amps cranking amp rating, there about 1/2 the size and weight of the group 27 deep cycle batteries I have in it.
So in theory it should work. Maybe. I hope. ???
 
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ET2 as a puller, I like that. One thing I see that you need to consider is your hitch height. To get better weight transfer to the rear tires hitching the sled higher would make the front want to lift by transfering sled weight to the rear tractor tires. That way you keep all of your batteries on the front, and when you do pull in the 1050 class you can add weight.
 
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