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TC35D won t start

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tly7717
Join Date: Jul 2003
Posts: 3 Missouri
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster

2003-02-20          49591


I am hoping that there is something simple here that I have missed. About a week ago, I had to jump my tractor to get it started. Didn't think much about it since it had set for quite a while. After it started, I did my work and let it run for awhile to let the battery charge. When putting the tractor up, I tried starting it again and it started fine. Yesterday when I tried to start it, the glow plug made a funny noise (probably relay chatter) and when I tried the starter, barely turned over. I went to town and purchased a new battery. After installing the new battery, the tractor won't make a sound. All of the dash lights work, the headlights are bright and I even put the jumper cables on and it still won't make a peep. Acts as though the shifter is in gear. I have checked neutral numerous times, checked the pto shifter, made sure I was sitting on the seat. It seems strange that before with the bad battery, it at least tried to turn over and now....nothing. Am I missing something?? Was hoping that someone in the group may have had this same thing happen. I could call the dealer but he is 200 miles away and would hate to have him travel all this way for something simple. The tractor is under warranty and he has come here before but still if it is something simple, I would be able to get addressed now and wouldn't have to wait a week or so for the dealer.

Thanks

Tom Young

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TC35D won t start

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BillMullens
Join Date: Jun 2000
Posts: 649 Central West Virginia
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2003-02-20          49594


There are at least a couple of relays under the right-side panel on my TC29. When I bought it, a relay was bad (it wouldn't start to put it on the trailer). The relay was a generic four-posted deal, the dealer bought one at an auto parts store. Hasn't happened since. I remember he told me that I could pull one of the other relays to substitute, but then something else wouldn't work.
In your case sounds more like a fuse/fusible link/circuit breaker since it happened the way it did.
Good luck,
Bill ....

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TC35D won t start

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TomG
Join Date: Feb 2002
Posts: 5406 Upper Ottawa Valley
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2003-02-21          49678


I won't try to reason through what's going on from my Ford 1710 system since there's undoubtedly been too many production changes to get to the TC-series, and the systems probably aren't even similar.

I wouldn't discount the idea that the new battery did it just yet. A new battery could subject components to higher voltages and currents than the old one and finished off some marginal components.

Well, maybe a little reasoning from my 1710. Current for the glow plugs doesn't go through a relay, but the safety switch relay is energized from the glow-plug circuit. I don't think your description said if the glow plugs still work, and the indicator light comes on. Anyway, the relay chatter could be incidental to using the glow-plugs.

Many safety switch circuits consist of a relay that delivers voltage to the starter solenoid when the relay is energized. To energize, the relay gets voltage to its winding hot side from the key switch, and the safety switches are in series on the relay winding's ground side. The relay winding doesn't have a ground unless all safety switches are closed. A common first test is (with the tractor off) to remove the relay winding ground wire, place all tractor controls in positions for starting (I guess that means somebody has to be in the seat) and then check for continuity from the wire to ground. If there's continuity, the testing goes on from there, but as you probably can see, a wiring diagram really is needed.
....

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TC35D won t start

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tly7717
Join Date: Jul 2003
Posts: 3 Missouri
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster

2003-02-21          49729


Thanks for the help guys. Bill, you pretty much hit the nail on the head. I got to looking at the wiring diagram and it started appearing to me that the neutral saftey relays weren't operating. Pulled the insturment panel and the fuse number 2 was blown.

Thanks again

Tom ....

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