8274 shorting after rebuild (1 Viewer)

[YukonCruisers]

I was doing some final testing yesterday after rebuilding my 8274 (new internals, same electronics, motor and solenoid) and I have a short.

The motor works fine when directly jumped, but when using the switch I can run fine in one direction, but I start melting battery terminals in the other. In the pictures I have positive coming in on the left and have the case grounded at the motor housing. From what I can see, I don't have any terminals that are touching the case or anything. Thoughts?

 

[gnob]

Whichever direction isn't working is something in the solenoids.
Clean all that up and go again or get a contactor.

 

[Randy88FJ62]

First picture bottom two solenoid trigger smaller posts should be grounded for 12 volt operation if the other thread is correct. Let me pull a pic.

Post #148 on page 8:

My WARN 8274 rebuild part 1.....

Awesome thread. Thank you so much for the information. I have a couple of questions. I took the top cover off my 8074 to check the oil level and found that the large gear on the brake shaft looks to me like its on backwards. Lots of splines showing on the shaft on the passenger side and the...

forum.ih8mud.com

 

[Randy88FJ62]

This picture agrees with the crumbled mess when I took apart my solenoid assembly. There were two missing wires when I tore mine down. All I found were two terminals connected where you are missing with no wires attached. This means the ones I was missing were attached to ground and ripped off when P.O. took off for rebuild.

 

[YukonCruisers]

Thanks guys, since posting i pulled f3 and checked for voltage, each solenoid was triggering individually and putting out 12v, so I put it back together tested and for some reason it now works. loose connection perhaps or a terminal was twisted and contacting the housing, dunno.

Randy, I will try grounding those poles when I install for added reliability, handed seen that before,

Cheers,
Kerry

 

[Randy88FJ62]

Kerry,
I need to look into it more as well. It may be that the two extra grounds are for 5 pin operation compared to 3 pin? Not sure until I delve more into it.

My goal is to have the winch assembled this weekend and next on the truck.

 

[YukonCruisers]

Ha, my goal is to have the truck this is going on done in 3 years...