Where is the neutral safety switch on the 4300? I'm almost positive this is the problem, as I've had to jiggle the sync reverser handle while turning the key to start it for about two years now, it finally would'nt start, so I bought a new switch, with the copy of where it should be from John Deere, and I can't find it where it is supposed to be!
4300 neutral safety switch
- Thread starter bayfield
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beenthere
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Yes, that is the same page which I got from the dealer. But, it was'nt where it was supposed to be. I followed the linkage all the way from the handle down to the entrance to the tranny, and could not find it or even a wire to jump it, so I could at least start it to see if that was the problem. I called the dealer yesterday, and they said it might be in the tranny.
I don't know if I want to pull the tranny in this weather(teens here today) so it looks like I'm going to have to ask a neighbor to plow me out until I get this fixed.
Thanks,
Bayfield
beenthere
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bayfield
I went back to the service tech manual, and poked around some more. Appears, to me, that there is a wired safety switch for the synchreverser tranny, but appears also may need a mechanical linkage adjustment where position is important. Maybe the following five attachments will help locate the problem.. Looks like adjustments can be made without going into the tranny.
I'll poke around some more in the wiring schematics for the switch, and maybe on the clutch linkage. ??
I went back to the service tech manual, and poked around some more. Appears, to me, that there is a wired safety switch for the synchreverser tranny, but appears also may need a mechanical linkage adjustment where position is important. Maybe the following five attachments will help locate the problem.. Looks like adjustments can be made without going into the tranny.
I'll poke around some more in the wiring schematics for the switch, and maybe on the clutch linkage. ??
Attachments
beenthere
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rekees4300
Elite Member
My 4300 is an HST so don't know if this applies? Its neutral switch is located under the floor board by the forward/reverse pedals on the right side of the tractor. It is engaged/disengaged by linkage to the pedals. Had trouble with it and solved the problem by installing a ban clamp. The thickness of the clamp was just enough to depress the switch.
I just read your post, even though it's cold out, I'm going to poke around and see if I can find it now.
thanks for your time, I will keep you posted
Bayfield
Well, after all this, I had to spend the money and have a service guy from John Deere come out. It was the wire that goes to the starter that had worked it's way off!
Anyway, thanks for your help.
beenthere
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Do you know which wire and can you get a pic of it to show where it came off? Would be appreciated.
Hmmm ok I have been reading this because I think my neutral switch just went out. I have had to "rotate" the forward /reverse handle to get the starter to engage, now nothing. I did not see that the actual location of the switch was ever found... am I missing something?
rekees4300
Elite Member
On an HST the switch is approximately 1 foot to the left of the forward/reverse pedals. But since you mention "forward/reverse handle" I'm assuming your 4300 isn't an HST?
GhostWriter
New member
You might find this YouTube video helpful SyncReverser Forward and Reverse Repair JD 43 recovered part 6 - YouTube
It shows where the switch is located and how to replace related parts
It shows where the switch is located and how to replace related parts
thanks yes I have watched that one, still cant find the switch, mine isnt hydrostatic, I have a feeling I might just have to haul it into the dealer... Ive been able to keep it alive for 15 years now of hard use I guess thats a good run. I have looked all over that thing and cant find anything. So another quick question, is that switch just preventing the starter motor circuit from kicking in ... if I hot wire the starter can I get it running enough to get it on the trailer?
GhostWriter
New member
You could bypass the switch - but I wouldn't. Starting in gear is asking for transmission trouble and / or starter gear and flywheel damage. But if you are positive it is in neutral and you just want to load it; it's your call.
I see various suggestions based on transmission types. Is it a SyncShift, Hydrostatic, or SyncReverser? (9 gear, 12 gear, or infinite gear) TractorData.com John Deere 43 tractor transmission information
I see various suggestions based on transmission types. Is it a SyncShift, Hydrostatic, or SyncReverser? (9 gear, 12 gear, or infinite gear) TractorData.com John Deere 43 tractor transmission information
larboc
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There is a relay in the fuse box that is the starter disable relay. If you make up a 3" long wire with male 1/4" spade terminals crimped on each end and replace the relay with that, you'll be able to just use the key to start it and it bypasses the seat switch, pto switch, and nss. I have a hydro tractor so I'm not as worried about starting in gear and did that when I started having intermittent problems with some safety switch I couldn't track down.
