Back in Action
The (Not So)Superwinch is back in action...for now.
I was all ready to buy a new Warn, but I decided to take the Superwinch apart all the way and look at it closely. I took a good look at the solenoids and determined that 12 V
was getting through them like it was supposed to. I also noticed that after a few clicks on the remote control, the motor housing and battery cables were really hot - hotter than they would be if I had been using the winch under a load. I figured the motor was trying to turn but was locked up. So I took the motor housing loose and removed the motor. Low and behold, I found that everything inside of the housing was corroded quite severly. Apparently the housing wasn't sealed up good at the factory. The o-rings were in place and there was some white lithium type grease around them, but not much at all. Keep in mind that this winch has only been rained on twice since I got it last December. I've had either a trash bag or a Superwinch brand cover over it since it was about a month old.
I took the armature out and assessed the damage. Everything looked rusty, but I sprayed some WD-40 all around in there to get the moisture out of there and wire brushed everything I could get to. I thought about taking a Scotch Brite pad to the part of the armature that contacts the brushes, but I didn't want to risk taking off too much metal and the brushes not making contact. I got some clean motor oil and wiped down the outside of it. The bearings and the outside part of the shaft that engages the spool were in almost perfect condition, surprisingly. I guess it's becuase they're plated.
I thought to take some pictures of the corrosion
after I had done a good bit of wire brushing.
The copper is supposed to be shiny by the way.
After I had everything about as good as I could, I put a bunch of blue high temp grease all over the o-rings and all around the mating surfaces of the two covers. Then I put them back on and ran a bead of RTV around the seams. I wish I had used RTV to make a gasket like you do when you put a water pump or diff cover on. I may go back and do that. After it was back together, the winch worked as good as new. I'm sure this was the problem with the first winch too. I know it's really humid where I live, but I can't see how that much moisture could get into something like that unless it wasn't sealed properly to begin with. I noticed that Superwinch has changed the design of that winch now and put the solenoid housing off to the left now. I wonder if they're sealing them up better now too.