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Crawlers, Dozers, Loaders & Backhoes Discussion Forum

310a starter relay smoking

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JREX

10-08-2006 10:14:34




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I relaced the starter relay, mounts to the firewall. the machine ran for a bit. It would not shut down with the key. eventually the engine stopped and the relay was smoking.
any ideas?




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Roy Suomi

10-08-2006 19:25:12




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 Re: 310a starter relay smoking in reply to JREX, 10-08-2006 10:14:34  
There is no start relay unless someone added one. How many terminals?? 2 or 3??.Where exactly is it mounted?? On the firewall?? I don't remember anything mounted to the flat tin plate that closes the front of the dashboard under the hood..The only thing there is a hole where the temperature gauge capilliary tube runs through.The horn is mounted on the crossmember directly in front of the tin plate..If you have no power at the injector pump solenoid , I would go right to the ignition switch and see if power is even getting there [ at the Battery terminal].

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JREX

10-09-2006 04:55:15




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 Re: 310a starter relay smoking in reply to Roy Suomi, 10-08-2006 19:25:12  
The original (least looked original) had 3 terminals. 2 large 1 small. The schematic I am using is for a 410. You know of anyone who could send me a copy of the 310a diesel schematic?

Thanks for your help,
JREX



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Roy Suomi

10-08-2006 13:06:27




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 Re: 310a starter relay smoking in reply to JREX, 10-08-2006 10:14:34  
John Deere 310-A ????? They don't have a starter relay on the firewall..Wired straight through from the push button switch to the neutral start switch to the starter solenoid...Last I looked.. Hey craneguy...Got any owners manuals for a B.E. 15 B dragline crane ?????One of my customers is looking for one..I don't think he can figure it out himself...



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oldcraneguy

10-09-2006 02:23:23




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 Re: 310a starter relay smoking in reply to Roy Suomi, 10-08-2006 13:06:27  
Sorry Roy, no manual here, never have owned any of the cranes I run, cant recall ever even seeing a 15B, one old 11B truck crane and several 22,30,38,51,6171, and 88's...I assume a 15 would be pretty much like the 11-22 pretty simple, manual controls, any particular prob? or is the fella just looking to be prepared?



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oldcraneguy

10-09-2006 02:40:14




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 Re: 310a starter relay smoking in reply to oldcraneguy, 10-09-2006 02:23:23  
Roy..I just remembered a fella on here Named Ray Plumadore has a book on a 22B ( his is a crawler) that might be helpful if your customer has a particular problem, other than actual size much of the small B-E's workings are the same, I can dig up his e-mail if ya want?



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oldcraneguy

10-09-2006 05:01:22




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 Re: 310a starter relay smoking in reply to oldcraneguy, 10-09-2006 02:40:14  
Whoops, I got mixed up, His name is Raymond Hudson, got him and Bob Plumedore confused, of all the things Ive lost its my mind I miss the most.Don



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JREX

10-08-2006 16:18:04




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 Re: 310a starter relay smoking in reply to Roy Suomi, 10-08-2006 13:06:27  
I do have a push button to start, also a key switch to turn on before pushing button. There was a relay one line went to the starter, other line went to in tru the firewall. there was also 2 smaller lines, that seemed to go to the circuit breaker. I was reading thru a 410 service book and follwed the steps, no power at the injector pump, starter relay, however was able to turn emgine with starter, but with no power at pump, no fuel.

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oldcraneguy

10-08-2006 11:45:54




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 Re: 310a starter relay smoking in reply to JREX, 10-08-2006 10:14:34  
just a welded relay, happens alot, the reason it wouldnt shut down was the relay also supplies juice to the coil during cranking it was prob also running the starter motor till it stopped hopefully it didnt run long enough to toast the starter. Just replace the relay and check the leads good (look for melted/blue insulation/copper)...Also check battery condition as a weak battery with low volts can cause the contacts to weld like this...luck

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JREX

10-08-2006 16:31:34




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 Re: 310a starter relay smoking in reply to oldcraneguy, 10-08-2006 11:45:54  
when this happened only the relay was smoking and i was hot to touch, no wires were hot, stater not running. tturn switch off motor kepy running then stopped. i bought the relay at a auto parts store. it had 4 terminals. 2 large 2 small. one of the small was for the coil, which i dont have, deisel. i had two small wires that ran up inot the cowling, belive that is how injector pump get power, they felt like they went to a circuit breaker. the 2 large one went to the starter solinoid. the other i am not sure,i htink somehow connected to battery. the battery line went direct to the starter,,,seems like i would go to relay. the 410 book i have showed either way

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oldcraneguy

10-09-2006 02:32:26




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 Re: 310a starter relay smoking in reply to JREX, 10-08-2006 16:31:34  
Not sure why but I was picturing a 310 Case (gas) prob cause I got a 320, If it wouldnt shut off with the key I would think you got a wire crossed somewhere, the lead from the ignition wouldnt need to run thru the starter relay at all I wouldnt think.. Still hard to figure how the relay would be smokin hot without the wires getting hot as well, kinda got me stumped there...lol



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JREX

10-09-2006 04:57:50




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 Re: 310a starter relay smoking in reply to oldcraneguy, 10-09-2006 02:32:26  
I am using the schematic from a 410. The relay looked original, disel. There were 2 large and 1 small terminals. Do you know of anyone that might be able to send me a schematic for the 310a diesel?

Thanks for your help,
JREX



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