mystery wires

[mooneye777]

Ive gotten this ford 2600 1975,ish tractor from my father inlaw. I know now it is a deisel powered tractor, it has 2 wires on the gear box tunnel. I am assuming they are for the glow plug switch. That is just a guess, maybe it did not have a switch for that. But anyway here is a pic of the wires, and the tractor. Thanks in advance for any help, as I am tractor illiterate.

 

[kenstrac]

Neutral safety switch

 

[Soundguy]

Ditto that on the neutral safety swtich...

No glow plugs in the tranny!!!


soundguy

 

[J_J]

It could be several things. First use a volt meter and see if there is any voltage on it. Turn the ign switch on and see if there is any voltage. Turn ign switch off, and use the ohm meter to see if there is continuity. If you have continuity in neutral, and not while in gear, then it is what it is. Might even be for a reverse warning light. Maybe a high range or low range indicator. Transmission temp. Nitro injection pump switch.

 

[kenstrac]

It could be several things. First put a volt meter and see if there is any voltage on it. Turn the ign switch on and see if there is any voltage. Turn ign switch off, and use the ohm meter to see if there is continuity. If you have continuity in neutral, and not while in gear, then it is what it is. Might even be for a reverse warning light. Maybe a high range or low range indicator. Transmission temp. Nitro injection pump switch.

Might be a seat ejector switch watch out what you touch you might not like the outcome.

 

[Soundguy]

It could be several things. First use a volt meter and see if there is any voltage on it. Turn the ign switch on and see if there is any voltage. Turn ign switch off, and use the ohm meter to see if there is continuity. If you have continuity in neutral, and not while in gear, then it is what it is. Might even be for a reverse warning light. Maybe a high range or low range indicator. Transmission temp. Nitro injection pump switch.

Actually.. pic #1 unquestionably nails it for a ford trans cover... it's a SN switch..

under that cowl there will be 2 wires but connector-ed together so the solenoid pops when the key turns...

soundguy

 

[Willl]

under that cowl there will be 2 wires but connector-ed together so the solenoid pops when the key turns...

lol

 

[mooneye777]

Thanks to all for the help. I will do the continuity test for sure. My big question now is will it fire and run with the wires connected , and or un connected if it is the neutral safety switch wires? I see now what you mean by no glow plugs in the tranny, as that is the top cover going into the tranny.

 

[J_J]

Thanks to all for the help. I will do the continuity test for sure. My big question now is will it fire and run with the wires connected , and or un connected if it is the neutral safety switch wires? I see now what you mean by no glow plugs in the tranny, as that is the top cover going into the tranny.

If someone cut those wires, then they may have bypassed the feature that the wire/switch provided.

I would get on the Internet and track down a wiring schematic for your tractor.

If it is a neutral switch, then it may start or not start depending on what someone did to the wiring. If it only powered a light, it would not affect starting.

You really should find out what the purpose of the wire/switch.

If you get a chance, take off the cover plate and see what is in there.

 

[Inspector507]

According to NH Parts, that is a Safety Starter Switch, Item Number 55. It is connected to the Neutral Start Switch inside the tranny.

 

[kenstrac]

If I remember right everything will come on dash ,gauges. themo-start but starter will not energize last thing in line before starter solenoid

 

[MikesTractor]

That is definitely the neutral safety switch. That notch in the sheet metal beside the wires (as seen in your first pic) is where the wires should come through. If you remove that cover with the notch in it, there should be 2 wires hanging down with a molded plug on the end. There are 2 halves of the plug, 1 on the safety switch harness and one on the main tractor harness. Each plug has a male and a female. These are round bullet type plugs.

When the neutral safety switch would fail, a lot of people would cut those wires (like done to yours) and connect them together to bypass the neutral switch. With this switch bypassed, the tractor can now be started in gear.(not good)

If it was mine, I would definitely fix it. If you choose not to, please be careful.

Mike

 

[Coyote machine]

I don't know what the wires are for, but I want to know what the two things behind the rear tires are?
Are they Ford water skis?

 

[Soundguy]

Didn't I just say something like that

soundguy

That is definitely the neutral safety switch. That notch in the sheet metal beside the wires (as seen in your first pic) is where the wires should come through. If you remove that cover with the notch in it, there should be 2 wires hanging down with a molded plug on the end. There are 2 halves of the plug, 1 on the safety switch harness and one on the main tractor harness. Each plug has a male and a female. These are round bullet type plugs.

When the neutral safety switch would fail, a lot of people would cut those wires (like done to yours) and connect them together to bypass the neutral switch. With this switch bypassed, the tractor can now be started in gear.(not good)

If it was mine, I would definitely fix it. If you choose not to, please be careful.

Mike

 

[MikesTractor]

Didn't I just say something like that

soundguy

Right, just agreeing with you.

Mike

 

[RickB]

You really should find out what the purpose of the wire/switch.

If you get a chance, take off the cover plate and see what is in there.

The purpose of the cut wires has already been described accurately twice in this thread. THe cut wires and underlying switch can be tested with an ohm meter without the bother of removing the transmission cover. Sometimes it just doesn't make sense for an admitted 'tractor illiterate' to engage in recreational disassembly.

 

[wv1720]

By the way, nice looking tractor.

 

[PILOON]

Noticed that the boot on the shifter is cracking.
You might consider replacing it B4 water seeps into the tranny fluids as that is number 1 cause of water contamination entry point.

 

[J_J]

The purpose of the cut wires has already been described accurately twice in this thread. THe cut wires and underlying switch can be tested with an ohm meter without the bother of removing the transmission cover. Sometimes it just doesn't make sense for an admitted 'tractor illiterate' to engage in recreational disassembly.

Well, you can take someones word for it, or it may be better to find out for yourself. You might also ask ones self, is it a normally open switch, or is it a normally closed switch, or you think he is going to hook the switch back up as a safety feature. This is all good advise, which the original poster can decipher, use or trash.

Next question he might ask, would be, how do you hook it up correctly.