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McCormick XTX120 PTO problem (CaseIH MX 120)
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kb ag
Posted 11/10/2010 20:40 (#1430266)
Subject: McCormick XTX120 PTO problem (CaseIH MX 120)



I have a XTX 120 that we ran on 1000 pto all summer and just switched it over to 540 and now the pto won't always engage. We recalibrated the pto and that didn't help. If you get in it and the pto works, it will work until you are done, but the next time you get in it it might not work and doesn't seem like anything you do will fix it. If you do something else for a while and come back to the tractor, it might work. Shutting the ignition off and then turning it back on doesn't help.

Guy running it finally unhooked it from the bale processor today and hooked up the 4020 (no computer!). Any ideas where to start when I pull it in tommorrow?

Edited by kb ag 11/10/2010 20:46
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waites tractor
Posted 11/10/2010 21:23 (#1430344 - in reply to #1430266)
Subject: RE: McCormick XTX120 PTO problem (CaseIH MX 120)


northern ny,
when it dont work does it turn on for bout 4 5 sec or not . or just does nothing. you have a good conn to alt on the w wire. is there any fault codes . do u no how to get them out. is the 2wire sensor on bk of pto housing good. that tells what speed it is in . might check the grounds from cab to shift valve the one on bottom cab comes loose . if it is you need to tighten it in the cab also it goes thru floor and has a nut on bottom side
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kb ag
Posted 11/10/2010 21:42 (#1430381 - in reply to #1430344)
Subject: RE: McCormick XTX120 PTO problem (CaseIH MX 120)



yes, it turns for a few seconds and then shuts off, I know how to get the codes but haven't done that yet. The tractor only has 130 hours on it. I'll check the other things too.
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Big Square
Posted 11/10/2010 21:46 (#1430390 - in reply to #1430381)
Subject: RE: McCormick XTX120 PTO problem (CaseIH MX 120)


Eastern Half of Kansas
If it has 130 hours why are you working on it?
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kb ag
Posted 11/10/2010 22:02 (#1430421 - in reply to #1430381)
Subject: big square



I figured somebody would ask that. We are pretty mechanically inclined and I like to know how stuff works, so if I can figure it out and not spend a lot of time on it, I'll be better prepared when it isn't under warranty anymore or when it is 2 AM and I am trying to finish baling before the rainstorm. But I am not going to spend much time on it and definitely won't be dismantling it before I schedule a service call. There is a lot of knowledge on this sight and many times it is a simple fix if you know what you are doing.

Also when your salesman is the owner and also the service manager, I am sure he gives just a little better deal to the lower maintenance customers.

Edited by kb ag 11/10/2010 22:03
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Big Square
Posted 11/10/2010 22:07 (#1430431 - in reply to #1430421)
Subject: RE: big square


Eastern Half of Kansas
I understand your position
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GreenhouseGuy
Posted 11/11/2010 05:46 (#1430730 - in reply to #1430431)
Subject: Re: McCormick XTX120 PTO problem (CaseIH MX 120)


Piedmont, NC
Speed sensor on PTO. Replace it first.
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IAhaymakr
Posted 11/11/2010 07:02 (#1430764 - in reply to #1430381)
Subject: Re: McCormick XTX120 PTO problem (CaseIH MX 120)


My 120 did what yours is doing, and it had a bad alternator.
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scott nelsen
Posted 11/11/2010 14:12 (#1431199 - in reply to #1430266)
Subject: Re: McCormick XTX120 PTO problem (CaseIH MX 120)


Leeds, North Dakota
kb, i agree with speed sensor, but one thing comes to mind, is this a reversible shaft or separte shaft, case had some issues with shaft if its not reversiable, normally on 1000 rpm shaft, also have seen plunger stick in pto housing, thus scored, not setting cluch packs where they need to be, case did not drill hole in shaft, but this was 1000 rpm shaft only, would pull shaft and look at another one, if not reversiable, scott.
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