I hate to state the obvious here...What brand of winch are we talking about? Model 812 tells us nothing. We want to help but you'll need to provide more info. If you do know the brand, Google it then search for a link on owner's manuals. Good luck!
Go to powerwinch.com or call them. they will help you out . They gave me a downloadable, would send a book if you ask. They have great customer support.
