I do know what I am talking about. High power winches have two solenoids in each motor that way if one sticks there is another. You can do a search yourself and see that these do exist. Maybe you should do your research before telling someone to do theirs. Google 4 solenoid winch diagrams and you will see lots and lots of pictures. You may have never seen one but it does not mean they do not exist. Please do be more polite in your posts. This seems like a nice community and I do not want to argue with you. I also do not want to be put down. We are not talking about fork lifts anyway. This post is about a 4 wheel winch.
Lets cover this, point 1, the poster never said what kind of winch it was, so how do you determine wether it has 4 solinoids, 2, where have you seen 2 motors on an atv winch, 3, so you say they add the extra solenoid in case 1 fails, if it has 2 motors it will require 2 solenoids for each motor, you should have read your response before submitting reply, finally, what does foklifts have to do with this? All of the lifts I serviced where DC, "IF YOU NO WHAT THAT MEANS" battery operated, which in travel mode the motor would need to see reverse polarity in order to reverse, 30 years SON, send me a pm I'll send my CERTIFICATES, however! I highly doubt your computers big enough to accept a file that LARGE.
That said if you felt insulted I am truly sorry, it is up to the poster to supply as much info as possible for us to help, thereby preventing arguments such as this.
So why not put this aside & ask the original poster to supply enough info to help us figure out the problem.
Michael