Newbie

[tkevan]

My schematic says 40amp. I found a 30 but no 40. The diesel start module with the corroded hot is a circuit board. There was no corrosion under the washer so I doubt that was a problem. I cleaned it up and put it back together. Now I have lights. No start. Going to PTO switch next. How do you test these kinds of switches with bat disconnected? Do you look for continuity or what?

Do you have horn also? So everything but starter? You can unplug the switch and check continuity between posts on the switch. It now sounds like either the PTO or Range lockout is the issue. The range switch is on the left side of the range selector, held on by two bolts.

 

[mahindraweary]

Ok. It's now 104 and I'm gonna have to get out of this heat. I'll text a better pic when I get back up to the house. I'm out in a field with no shade and it's hot on this old man. I appreciate your help very much. Phone bat dying too.

 

[k0ua]

Ok. It's now 104 and I'm gonna have to get out of this heat. I'll text a better pic when I get back up to the house. I'm out in a field with no shade and it's hot on this old man. I appreciate your help very much. Phone bat dying too.

Roger that. I understand.. take care of yourself. You have my info, I will help if I can.. I could probably help a bit more if I was in Texas standing by your side.

 

[seaneastok]

First thing first.
Meter set to read DCV. Red on battery positive terminal. Black on battery negative. What does it read? Exactly. Should be 12.6 for a full battery.
Second. Turn on lights. Do they come on? If yes, try to start. Do lights dim? Or do they go it completely like they were suddenly turned off? If you're alone then put a mirror in front so you can see them.
Let us know the results of these first checks.

Covered in post #20 of course we never heard the result..btw howdy neighbor..from Panama OK..

 

[k0ua]

Covered in post #20 of course we never heard the result..btw howdy neighbor..from Panama OK..

good point, I would like to know that as well.

 

[lennyzx11]

Ok. Battery seems good.
From the positive terminal of the battery a larger wire goes to the starter solenoid. Is there 12 volts there at the connection where it connects to the starter? This shows the starter is getting power TO it from the battery.
Now the way that solenoid closes is power goes from the battery positive on a Smaller wire(this can be connected on the battery positive or at that starter connection you are checking). The power will go through safeties and the start switch turned to START and back down to that starter solenoid to make it close allowing power to flow from that big terminal connected to the battery across to the starter motor making it spin.
Since the key switch "appears" to have power since the lights came on, has "enough" power ( since you checked battery voltage) then it is pointing us toward the safety switches.

I would next hold the key to START, and wiggle wiggle wiggle the pto lever, brake pedal and other safety items that others have mentioned and see if the starter try's to "bump" .
That'll narrow it down more.

Friend, it can be frustrating. But there is more experience on this board than most dealers have when its combined. You just have to methodically work your way through it one component at a time.

 

[lennyzx11]

Covered in post #20 of course we never heard the result..btw howdy neighbor..from Panama OK..

Wister lake Ok, here Sean BTW.
Lenny

 

[k0ua]

Ok here is the schematic he sent.

 

[k0ua]

So I would start by finding the start relay coil. It has a Black wire which is negative ground and probably a red/White wire which should have 12 volts on it when the key is turned to the start position. If it does not, work backwards to the PTO nuetral switch tracing thru it and its red/white feed wire and if nothing there go back to the safety nuetral switch with is red/white wire and if nothing there go back to the key switch itself and its red/white wire We know the White/green feed to the key switch is good because when turned "on" it feeds the Blue/Red wire and you said the headlights work. The Blue/red buss feeds many other things in the tractor. including the input of th contacts of the start relay and goes out of the contacts as a black/white wire to go over to the starter solenoid.

Now if the lights go out when you turn to start, work backwards on the white/green wire to the 40 amp fuseholder and battery connections.

 

[mahindraweary]

I'm going to get back at it before it gets too hot. Yesterday as I was wrapping it up I took the cover off of the PTO switch. It didn't look like the lever pushed the button down so I pushed it down with a screw driver. It clicked if that means anything. I'm going to follow your instructions and if I don't find anything I'm going to button it all back up mark this weekend down as lost time (as if I had a lot of time left) and drive the 40 miles to the dealer and drag a tech over here and make him fix it.