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Unread 11-03-2014, 13:57
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Re: Back Driving Problems

Quote:
Originally Posted by shanek21 View Post
Having enough torque on the system to prevent back driving would be the ideal situation for our winch, but we are very limited on funds and basically only have what has been donated to us, which in this instance is a supershifter. Do you have any suggestions for a relatively cheap alternative to the ratio that we get from the super shifter? We are able to allocate two CIMs to our winch, which would theoretically give us enough power, we just don't seem to have enough torque through the super shifter's gear ratio.
I'm not too familiar with super shifters, but do you know what ratio you are running? How fast does it winch back all the way? What type of speed controllers are you using for the CIMs? Unfortunately, CIMs draw so much power that it's probably not practical to try to hold position with them, or they might get hot and drain your battery. If this is the case, you will have to investigate one of the mechanical locks discussed in this thread. With the lower gear ratios that super shifters use, they are significantly easier to backdrive then a 50:1 or 100:1 gearbox, so holding your winch with the motor is probably not your best bet. However, don't take my word for it- do some testing if you have the chance.
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