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Old 06-30-2010, 05:48 PM   #1
cetane
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Well heres my latest problem

Well this is my Challenger MT295. I was doing some brush hogging with a 60". I went for a day and a half. Broke 6 1/2" grade 5 shear bolts on the mowers drive shaft. I figured it was better to brake them than some thing on the tractor. Well I did brake the main input shaft to the Hystat that runs every thing. The fly wheel goes to a shaft that drives the hystat and reduces down to a 7/8" shaft. Thats where it gave up. The whole 44hp runs through this shaft and on the other end runs the PTO. Every thing that this tractor does comes through a 7/8" shaft. What crap! So I looked for this shaft. AGCO doesnt list the parts for the Hystat. It is only sold as a complete pump. $3500.00 I called the manufacturer of the Hysat pump and they said that they can only sell parts for that unit through the OEM manufacturer, "No parts can be bought for the KYB pumps in the US". So I found this place that says they can make a shaft for me for this pump. Today I fedexed the broken shaft to them in MS and will talk to them tomorrow to see what it will cost. So I will give an update when I get it back together and see if it works.


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Old 06-30-2010, 05:58 PM   #2
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Here are some picks.
At the 11" is where it broke, at the smallest part.
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Old 06-30-2010, 06:03 PM   #3
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Heres more
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Old 06-30-2010, 06:33 PM   #4
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Is that a cadet? I'm stunned. Hope you get it fixed up alright.
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Old 06-30-2010, 06:39 PM   #5
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Challenger same as AGCO St45, Massey 1445 and maybe a cadet IDK.
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Old 06-30-2010, 06:43 PM   #6
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I see. How much to fix it and how can it be avoided in the future? Smaller shear pin I guess, huh?
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Old 03-25-2011, 08:41 PM   #7
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So yes its back together. Dont know how long, but it is. The shaft became available in July from AGCO and I ordered it. Only $138 not bad. Just to make clear I ordered it in July and got it 2 weeks ago. Yes Figure that out.



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