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bakwoodsfarm 
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Joined: 02 Sep 2010
Location: Woodleaf,NC
Points: 511
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 Topic: 7050 tach
Posted: 17 Nov 2010 at 5:57pm |
Trying to figure out how to get the tach working on my 7050. Does it run off the alt, if so I have changed the alt to a chevy alt. The old one did have an extra wire hook-up on the rear but nothing was hooked to it. The tach hasn't worked since I have owned the tractor. I can't find anything in the shop manual on it.
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Dans 7080
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Joined: 05 Feb 2010
Points: 1146
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Posted: 17 Nov 2010 at 6:06pm |
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The tach does work off the alternator.
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bakwoodsfarm
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Joined: 02 Sep 2010
Location: Woodleaf,NC
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Posted: 17 Nov 2010 at 6:18pm |
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The old alt was a delco and had 3 spade terminals and a stud terminal. The alt I put on it was a delco but it only had 2 spade terminals and a stud terminal. The shop manual does not show any wiring diagrams and the only delco alt it shows is the one that is on the tractor now. Does anyone have a wiring diagram for this tractor? And maybe know where I can buy a rebuild kit for my old alt.
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skipwelte
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Joined: 29 Oct 2009
Location: Anthon, Iowa
Points: 723
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Posted: 18 Nov 2010 at 9:58am |
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the wiring diagram is in the operators manual. The correct alternator has two spades, one large stud and one small stud with no threads, the small stud with no threads is the tach pickup termainl, the tach counts the sine waves off one terminal on the rectifier bridge. There should be a small brown wire coming out of the harness with a terminal and black round insulator that pushes onto the small stud. HTH
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bakwoodsfarm
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Joined: 02 Sep 2010
Location: Woodleaf,NC
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Posted: 23 Nov 2010 at 5:12pm |
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Does anyone know where to get a working tach for a 7050?
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Joe(TX)
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Joined: 11 Sep 2009
Location: Weatherford. TX
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Posted: 25 Nov 2010 at 10:27am |
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My Delco has a third spade terminal in front of the 2 standard spade terminals. Yhis like is shown in the service manual.
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DougG
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Joined: 20 Sep 2009
Location: Mo
Points: 8189
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Posted: 25 Nov 2010 at 10:45am |
You may check AGCO , they had a new one for a 6060 AC for $205 new ; wasnt bad I thought , a 7050 is prolly the same tach ; Auto Value parts had a new alt. for $65 , had to swap pulleys worked great
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