John Deere 1435 glow plug wiring diagram needed

[TheEquineFencer]

I'm trying to help a good friend out. He has a JD1435 I think it's what he calls a series 1. The GPs do not work, no power to them. He's been throwing parts at it. New timer, I think that's what it is. Right side of mower beside three relays. If You unplug it, the GP light on the dash will not work. The wires to it are to small to carry enough current for the GPs, so I'm guessing there a power relay that it controls somewhere. I did notice there's an open relay base under the seat hanging loose, but nothing has been plugged in it for a while.

A wiring diagram would be helpful as we (ME) does not want to cut the woven harness apart to trace out the circuit.
Thanks in advance.

Floyd

 

[Chuckster in NJ]

I can’t help you however you may want to check out the John Deere forum at www.tractorbynet.com

 

[TheEquineFencer]

I can’t help you however you may want to check out the John Deere forum at www.tractorbynet.com

Thanks!

 

[13mo]

I'm trying to help a good friend out. He has a JD1435 I think it's what he calls a series 1. The GPs do not work, no power to them. He's been throwing parts at it. New timer, I think that's what it is. Right side of mower beside three relays. If You unplug it, the GP light on the dash will not work. The wires to it are to small to carry enough current for the GPs, so I'm guessing there a power relay that it controls somewhere. I did notice there's an open relay base under the seat hanging loose, but nothing has been plugged in it for a while.

A wiring diagram would be helpful as we (ME) does not want to cut the woven harness apart to trace out the circuit.
Thanks in advance.

Floyd

If you know the serial number, you can download the technical manual in PDF form from Deere's website or have it mailed to you in book form, and that should have the wiring diagram and troubleshooting process in it. The technical manuals for this series of units are a little under $300 though.

 

[TheEquineFencer]

If you know the serial number, you can download the technical manual in PDF form from Deere's website or have it mailed to you in book form, and that should have the wiring diagram and troubleshooting process in it. The technical manuals for this series of units are a little under $300 though.

That's what I'm trying to avoid, spending $300 to help friend with a $500 lawnmower.

He's a good friend, but not that good!

I just want to know where the components are, fuses, relays and such.

I tried ringing the glow plug wires back, but I could find the other end of the wires through the harness. If I knew where they went, each end of a wire to a device, I could figure it out

After finding out about wiring diagrams with John Deere, I'll never buy one.

 

[rustyjames]

"That's what I'm trying to avoid, spending $300 to help friend with a $500 lawnmower."

That mower is worth a whole lot more than $500. When it comes to a green machine with a diesel, it's big money.

 

[TheEquineFencer]

"That's what I'm trying to avoid, spending $300 to help friend with a $500 lawnmower."

That mower is worth a whole lot more than $500. When it comes to a green machine with a diesel, it's big money.

I agree, he got it at "a deal," but it's worth about $00.10 a pound to me if it doesn't crank and run....

I'm hoping someone feels sorry for a GJ brother and lends some insight....There's got to be a GJ brother out there...

 

[rustyjames]

Is this a machine that he just picked up? As in it's a known running machine?

 

[lowrollin70gmc]

I agree with rustyjames in that the first question is does it run?

If you’re in a warm climate it shouldn’t need the glow plugs to start and run. Even at 40 degrees a diesel will fire up without glow plugs if everything else is kosher.

While it isn’t a diagram, I have a couple screen shots from Deere’s parts website that shows the location of the glow plug relay (#22) and wiring. It’s tough to see without personally looking at the machine, but I’m guessing it could be the one not connected under the seat.

I’d start by testing continuity between the relay output (#22) and the glow plug connector (#32) to see if that wiring is intact.

It doesn’t have the wiring colors, but you should be able to identify wire color at the relay base in person and go from there. If it doesn’t currently run and he’s throwing parts at it to get it running, my concern would be with the fuel side: air in system, clogged fuel filter, stuck fuel solenoid, etc.

 

[rustyjames]

Also, might get more input posting this question in another section of the forum. I think most people equate the electrical forum as more or less to electrical in a building.

 

[TheEquineFencer]

Is this a machine that he just picked up? As in it's a known running machine?

It will run, but needs help, It's a "work in progress"...

 

[TheEquineFencer]

I agree with rustyjames in that the first question is does it run?

If you’re in a warm climate it shouldn’t need the glow plugs to start and run. Even at 40 degrees a diesel will fire up without glow plugs if everything else is kosher.

While it isn’t a diagram, I have a couple screen shots from Deere’s parts website that shows the location of the glow plug relay (#22) and wiring. It’s tough to see without personally looking at the machine, but I’m guessing it could be the one not connected under the seat.

I’d start by testing continuity between the relay output (#22) and the glow plug connector (#32) to see if that wiring is intact.

It doesn’t have the wiring colors, but you should be able to identify wire color at the relay base in person and go from there. If it doesn’t currently run and he’s throwing parts at it to get it running, my concern would be with the fuel side: air in system, clogged fuel filter, stuck fuel solenoid, etc.

I owe you, well W.A. owes you a beer...
How did you find a parts breakdown? Is it online?

 

[TheEquineFencer]

I agree with rustyjames in that the first question is does it run?

If you’re in a warm climate it shouldn’t need the glow plugs to start and run. Even at 40 degrees a diesel will fire up without glow plugs if everything else is kosher.

While it isn’t a diagram, I have a couple screen shots from Deere’s parts website that shows the location of the glow plug relay (#22) and wiring. It’s tough to see without personally looking at the machine, but I’m guessing it could be the one not connected under the seat.

I’d start by testing continuity between the relay output (#22) and the glow plug connector (#32) to see if that wiring is intact.

It doesn’t have the wiring colors, but you should be able to identify wire color at the relay base in person and go from there. If it doesn’t currently run and he’s throwing parts at it to get it running, my concern would be with the fuel side: air in system, clogged fuel filter, stuck fuel solenoid, etc.

After I opened the pictures, I figured it out, thanks.

 

[TheEquineFencer]

I agree with rustyjames in that the first question is does it run?

If you’re in a warm climate it shouldn’t need the glow plugs to start and run. Even at 40 degrees a diesel will fire up without glow plugs if everything else is kosher.

While it isn’t a diagram, I have a couple screen shots from Deere’s parts website that shows the location of the glow plug relay (#22) and wiring. It’s tough to see without personally looking at the machine, but I’m guessing it could be the one not connected under the seat.

I’d start by testing continuity between the relay output (#22) and the glow plug connector (#32) to see if that wiring is intact.

It doesn’t have the wiring colors, but you should be able to identify wire color at the relay base in person and go from there. If it doesn’t currently run and he’s throwing parts at it to get it running, my concern would be with the fuel side: air in system, clogged fuel filter, stuck fuel solenoid, etc.

This is going to make it a little easier. BTW, the wires have colors AND numbers on them. I guess we're going give it a "bath" shortly. I spoke with W.A. earlier, he said to tell you, thanks! .

 

[lowrollin70gmc]

After I opened the pictures, I figured it out, thanks.

I forgot to mention what I was using for the pictures, glad you figured it out. For others that see this, I use partscatalog.deere.com

It normally has good parts breakouts and diagrams. I use it all the time to get a basic idea before tearing into a piece of equipment for a non-obvious fix. On some models Deere looses their mind and it’s more confusing than clarifying, but overall it’s a decent free tool.

It won’t give parts prices unless you set up an account. I’m in charge of maintenance for a commercial Deere fleet so I use my account with the local dealer and it shows price and availability. It’s also nice to use for finding a part number and nomenclature to aid in searching for used parts and alternative vendors with the correct part number instead of a general description.

Glad the pics helped, Deere can be frustrating at times.

 

[TheEquineFencer]

I forgot to mention what I was using for the pictures, glad you figured it out. For others that see this, I use partscatalog.deere.com

It normally has good parts breakouts and diagrams. I use it all the time to get a basic idea before tearing into a piece of equipment for a non-obvious fix. On some models Deere looses their mind and it’s more confusing than clarifying, but overall it’s a decent free tool.

It won’t give parts prices unless you set up an account. I’m in charge of maintenance for a commercial Deere fleet so I use my account with the local dealer and it shows price and availability. It’s also nice to use for finding a part number and nomenclature to aid in searching for used parts and alternative vendors with the correct part number instead of a general description.

Glad the pics helped, Deere can be frustrating at times.

Frustrating? ROFLMAO. They would be a good piece of equipment if you could get tech support like I need. I called a guy that basically told me this morning, "you're F--ked if you have to have wiring diagram." then proceeded to tell me what you did in a round about way, go to the dealer and have them print you out related parts for what I was working on. When you posted what you did, a light came on.

I'll never buy a JD for this reason. Another guy that farms, told me he learned when he buys a tractor or equipment, "if they do not supply all the manuals for the same price as I'm buying the tractor, I walk away." He said he does that with all brands now. JD he said taught him that.

It seems that issue leaves a bad taste in a lot of people mouths from what I'm seeing and hearing.

But, thanks again for the assistance. I guess it's like a lot of things, buyer be ware. You can either spend the money to save time troubleshooting, or just do it "old school" like I'm going to have to do and spend the time.

 

[lowrollin70gmc]

My employer will only buy Deere, so I know exactly the feeling, especially on the smaller machines. The dealer will also replace entire harnesses instead of diagnostics, as they’ve done this under warranty on a couple of our machines. 50-50 shot of actually fixing the issue, though...


At least my power probe and multimeter skills are exercised and improved regularly and raises my job security. Don’t even get me started on Liebherr turned Deere loaders that I can’t even research what a given trouble code is!

When I eventually buy equipment for myself, it’ll be older, mechanical diesels or carbureted gas engines. Reliable while being quickly diagnosable. Thinking 8N or Farmall H, probably could go newer, into the 80s/early 90s but I love old tin.

 

[13mo]

I'll never buy a JD for this reason. Another guy that farms, told me he learned when he buys a tractor or equipment, "if they do not supply all the manuals for the same price as I'm buying the tractor, I walk away." He said he does that with all brands now. JD he said taught him that.

I wouldn't knock Deere too hard on that as most of the other tractor manufacturers make you pay for every single piece of documentation they make, at least Deere will let you download an operator's manual for most of their equipment made in the past few decades for free.

Since the piece of equipment in question is a lawn mower, the best company I have seen in regards to manual availability in that field is Toro, you can even get service and technical manuals in PDF form for free from them.

 

[Wrench97]

Does that have a Kubota engine in it?
Might try looking for that wiring diagram.

 

[TheEquineFencer]

I wouldn't knock Deere too hard on that as most of the other tractor manufacturers make you pay for every single piece of documentation they make, at least Deere will let you download an operator's manual for most of their equipment made in the past few decades for free.

Since the piece of equipment in question is a lawn mower, the best company I have seen in regards to manual availability in that field is Toro, you can even get service and technical manuals in PDF form for free from them.

LOL, did I mention he bought a Toro also? But I have a wiring diagram for that issue.

 

[TheEquineFencer]

My employer will only buy Deere, so I know exactly the feeling, especially on the smaller machines. The dealer will also replace entire harnesses instead of diagnostics, as they’ve done this under warranty on a couple of our machines. 50-50 shot of actually fixing the issue, though...


At least my power probe and multimeter skills are exercised and improved regularly and raises my job security. Don’t even get me started on Liebherr turned Deere loaders that I can’t even research what a given trouble code is!

When I eventually buy equipment for myself, it’ll be older, mechanical diesels or carbureted gas engines. Reliable while being quickly diagnosable. Thinking 8N or Farmall H, probably could go newer, into the 80s/early 90s but I love old tin.

I know the feeling. I have a Ford Jubilee sitting outside I'm going to fix and upgrade a few things on. One of the other tractors here is a 5600 Ford with FEL on it.

I need to get a power probe and learn to use it. I hear they are pretty neat. I like my Fluke 87V, I pretty decent with it...

 

[TheEquineFencer]

Does that have a Kubota engine in it?
Might try looking for that wiring diagram.

Yanmar I think...

 

[rustyjames]

Yes, I believe it's a three banger Yanmar it them, which indecently is a very good engine.

 

[Wrench97]

Try looking for a Yanmar glow plug diagram.

 

[TheEquineFencer]

Try looking for a Yanmar glow plug diagram.

What I need is a JD diagram...

 

[nadogail]

I have owned only one Diesel powered vehicle, it wasn’t a Deer. The glow plugs were wired in parallel, my main trouble shooting aid was an Ampmeter. If the current though the Glow Plug relay was not 60 Amps, one of the plugs was burnt out.

Any technical advice and Information you get from me is guaranteed to be worth exactly what I have charged you for it. The