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Ignition switch wiring 250AS

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RPM289
Join Date: Nov 2020
Posts: 2 Phenix City AL
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster

2020-11-16          199804


Need diagram for replacing switch owner took it out couple years ago and I am trying to get it running for him.



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Ignition switch wiring 250AS

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Nottoold
Join Date: Apr 2018
Posts: 26
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster

2020-11-18          199805


Hi RPM

Sorry do not have a diagram for your Belarus.

You say you are trying to get it running. Have you tried a remote starter switch as a work around while you try to get it running?

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Ignition switch wiring 250AS

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Cyrus55
Join Date: Feb 2012
Posts: 58 W TN
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster

2020-11-19          199809


Based on the age of the tractor, the ignition switch only "turns on the alternator" and maybe provides power to the starter solenoid, plus light control.
Tractor Data says the tractor was alternator equipped. If it has a generator, the switch only controls lights and starter solenoid, if it has one.
The tractor should have only a mechanical connection to the control of the injection pump. The throttle is probably the shut off for the engine, as well as controlling speed.
Oliver and John Deere both used a light switch for their ignition switch, even though diesels don't have a need for ignition switches. Shut off was by a pull rod or by the throttle lever
Oliver/JD light switch would be a good source for the switch as my memory indicates it used a similar switch. ....


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Ignition switch wiring 250AS

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cowrider
Join Date: Apr 2012
Posts: 90 new york
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster

2020-11-30          199838


Here are some manuals for the tractor. The wire diagrams are not the best but the manuals should help with other problems.

https://www.mediafire.com/?9nutl8b1f6m4jy9 Belarus T25A Repair Manual.pdf - 467 mb

http://www.mediafire.com/?9fylzh952p0ih8u Belarus T25A OM.pdf - 192 mb

https://www.mediafire.com/?8qlp9b2ebp1nxz6 Belarus 250A parts manual.rar - 110.2 Mb
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