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Old 07-25-2010, 09:00 PM   #3573 (permalink)
Dwffy
dwffy
 
Join Date: Jul 2009
Location: Calgary - Canada
Posts: 37
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cougar controller

Thanks Paul,
Well now I have a Ford Ranger with a Fork lift motor capable of running on 120 volts. I completed the instal last week and had already bench tested the Cougar which seemed to work flawlessly on the bench, however it was not under load. Consequently I proudly fitted my Cougar to the machine, and because I was a bit nervous to hook it up to 120v, I decided to go for 60volt. Tested everything out and it was all systems go. I put the vehicle in reverse and moved out into the alley behind our house and cautiously accelerated and moved off up the alley which is almost level ground. All went well but very slowly. I was in first gear and only travelling at a running pace so I accelerated to see what would happen. It increased speed ever so slowly on applying full throttle and when I turned the corner and started up a slight incline it would not accelerate any more. I tried 2nd gear and it almost stopped. I returned to my garage and proceeded to check everything out. Nothing was even warm to the touch. Batteries were still fully charged and when in neutral and revved up it sounds pretty normal to me. I cannot get it to go much faster even on 120 volts, so I decided to check out the performance using just a contactor connecting 48 volts directly to the motor. It now pulls off so fast in 1st gear it will give a short chirp from the back wheels. This leads me to believe that somewhere in the controller there must be a setting that is stopping the motor from getting a fully supply of juice.
Perhaps now you can analyse what I have said so far and pass some comment. Obviously I will need to give further info, but at this stage I'm not sure what to say, so over to you. (maybe it's the hot Canadian summer here
Thanks, Doug.
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