Ck weird electrical.

[pickeringchris]

Sorry for posting so much guys.
I hope this is my last post. Lol.

So I found the 2 leads on the light switch that show continuity when the switch is on low beam. I identified the 12 volt source with my multi meter on a known ground. Then I took a voltage reading across that switch. 3 volts. Lol.

I will pickup a new switch and let you know how I make out.

Thanks so much.

 

[Coyote machine]

I took the relay to the dealer and tried it out on a new machine. It works.

A friend dropped by today that is a good trouble shooter. He can also read schematics. He was only here for a short time but isolated the problem. I will post a picture. Hope you guys can see it.
Basically, somewhere between the 20amp fuse and the relay voltage drops from 12 to 3.

Seems like a multi-stranded wire is broken, possibly under the insulation, between the 20 amp fuse and where it terminates at the relays. I would find the wire where it comes off the fuse and move it, pull on it, test it until you find the point of loss, or where it's pinched, frayed, chaffed, etc. Looks like it might be green from fuse to relays.

 

[pickeringchris]

A follow up to my post 51....

So When the switch is connected to the tractor it has 12 volts going to it but does not pass thru....
I removed it from the tractor and hooked it inline with multi meter and directly to battery.... This time it has 12 volts pass thru the switch...... Im lost... Just gonna get the dealer to pick it up. :-(

 

[k0ua]

Looks like we are going in 2 different directions.. I though we had relay's that "pulled up" when the switch was thrown.. and we had a voltage drop from the output of the fuse heading to the input of the relay's. 3 volts on the green wires, and 12 volts leaving the fuse. So high resistance joint between those two points. This has got to be in a connector (most likely) judging by what we know happened to tractor. (thorough washing). The switch just controls the relay coils, and if they pull up, respectively and release as the switch is operated from OFF to 1 low and 2 hi then the switch is good.. But if what the other troubleshooter found is correct, that there is a severe voltage drop between the fuse on the relay switch moveable contact, then lets focus there.. Note to CM.. I have also been working with Chris on the PM "channel" . So I am trying to keep up over here too. Hang in there Chris, we ARE going to fix this.

James K0UA

 

[k0ua]

A follow up to my post 51....

So When the switch is connected to the tractor it has 12 volts going to it but does not pass thru....
I removed it from the tractor and hooked it inline with multi meter and directly to battery.... This time it has 12 volts pass thru the switch...... Im lost... Just gonna get the dealer to pick it up. :-(

Chris you likely made an measurement error.. easy to do. see my post below.. Remember if the relay is clicking when you go from off to 1 low.. and clicks again as you go to 2 hi beam. the switch is likely good. The other troublshooter found 12 volts at the output of the fuse, but 3 volts at the green wire/input of the relay.. THAT is a problem a BIG problem and the BIG problem lies between the output of the fuse and the input of the relay.. Trace that wirening by hand until you find the issue. Dont give up.. remember the mechanic at the dealership may not be any better at fixing electrical problems than you are.. What one man can do, another man can do.. YOU can do this repair..

 

[k0ua]

Don't worry about posting so much.. this is your thread, and we are here to help you. As long as you want the help. I haven't given up. Anyone can make mistakes, and then you go about correcting those mistakes and moving forward to the solution. Think of the unbridled joy you will have when you find and correct the problem..Sometimes troublshooting is one step forward and 2 steps back.. that is just normal operation for most of us.

 

[Coyote machine]

What James said, and don't take it to the dealer now or buy a new switch.
The problem is in the wiring from the 20Amp fuse to where the 'green' wire then runs to the twin relay.
Find where the voltage drop occurs along that wire and your problem is solved.
Anything else is wasting all our time. Please follow the advice we're giving you to see this to completion.

 

[murphy1244]

With these tractors checking your grounds seem very important.

 

[pickeringchris]

You guys should be motivational speakers! This I soooooo frustrating. Problem now is that wire that goes from the 20amp fuse to the relay is bundled with various other wires and harnesses and winds its way thru nooks and crannies. I'm not sure i wanna tackle that. If I do, I'm gonna have to take the loader off cause its in the way big time. I'm gonna chill with my kids right now. Need a stress reliever.

 

[k0ua]

You guys should be motivational speakers! This I soooooo frustrating. Problem now is that wire that goes from the 20amp fuse to the relay is bundled with various other wires and harnesses and winds its way thru nooks and crannies. I'm not sure i wanna tackle that. If I do, I'm gonna have to take the loader off cause its in the way big time. I'm gonna chill with my kids right now. Need a stress reliever.

Good Idea,, take a break, and let it sit.. It will look better and seem less of a mountain later. Remember We have NOT given up.

James K0UA