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brian hanford
Posts: 40
Location: Washington State
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im interested in replacing the gas engine on one of my David Bradley's with a electric DC motor. 12v or 24v i will use deep cycle batteries have two off my trailer. Where can i find a used motor? what things could i get the motor from? and where how would i build the controller? i am looking at mostly scrounging the parts, i have a scrapper that works with me on getting all kinds of stuff people just through out. i would like to reuse all items used to build the conversion rather than use new parts if possible. i have a briggs gear reduction motor that is bad, so i am thinking to use this to give even more reduction. my thoughts are to have it setup just like the gas motor with a on/off acting like the clutch. i dont need to adjust the speed, cause i want it as simple as possible.
thank you
 
Troy Rhodes
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golf cart motor...

if you're a little lucky, you might scrounge all the control circuitry and relays, etc.

How many minutes or hours in a day would you want to use the device?

What was the horse power rating of the internal combustion engine on the thing originally?

 
R Scott
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Location: Kansas Zone 6a
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David Bradley's were 3ish HP but better torque than modern small engines. Golf cart is a good idea, only thing I could think of is a treadmill.

 
Troy Rhodes
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A 3 hp electric will give you far more grunt than any 3 hp gasser. A golf cart motor is possibly too powerful and could possibly break things.

Approach with caution and let us know what you work out.

 
brian hanford
Posts: 40
Location: Washington State
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original engine was a 2-2 1/2 hp engine later they started using a 5 hp. this would need to run for 1-2 hours, not looking to mow with it so it wouldn't be running constantly for that time. golf cart would be too much i was thinking no more than a 2 hp, and i dont need the variability of the control. mostly just a on/off and a reverse. i was wondering if a car starter would work, next idea is a winch motor thats whats the most available. figured i would have to increase the cooling and lubrication on a starter. not sure of anything else in that power range.
 
Troy Rhodes
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treadmill motors are available in 1-3 hp and DC for not too much money.

here's one example.

http://www.ebay.com/itm/Used-Treadmill-Drive-Motor-fits-HealthRider-Image-Lifestyler-NordicTrac-2-90-hp-/201535685451?hash=item2eec76834b:g:OH4AAOxyc2pTbNqf


I have no idea if it's the appropriate voltage, but they are rated for the kind of duty you are looking for.

 
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