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DC transmission troubles (update)

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Mathias NY

05-25-2009 14:30:48

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Well, I finished taking the transmission top cover off today. I wish I had spent a little more time diagnosing the problem before I tore into it, because the transmission is fine. All the gear teeth are intact and all the shafts turn as they should. Oh well, experience is frustrating sometimes...

SO, I spent some more time narrowing down where the problem is. It turns out the clutch is slipping. I tried adjusting it by 5 notches. It still slips, but will periodically grab.

Since the tractor was pulling a 12' drag with no issues when the clutch let loose, I don't think it is an adjustment problem. Is it possible for the clutch facing to fail? Is there anything else I should consider before I split the tractor?

Thanks for the advice.

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C. Amick

05-25-2009 18:46:29

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 Re: DC transmission troubles (update) in reply to Mathias NY, 05-25-2009 14:30:48  
Have you been draining the clutch housing when you change the engine oil? Thought it might have some gunk built up in there?

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Mathias NY

05-26-2009 05:55:35

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 Re: DC transmission troubles (update) in reply to C. Amick, 05-25-2009 18:46:29  
Yes, I do drain the clutch housing when I change the oil. I believe I last changed the oil in the summer of 2007, which was about 40 hours ago. Since that time I have added about 4 quarts of 40 wt oil, but have not changed it. I am confident the tractor needs rings, based upon the fragments of ring found in the oil pan, but that will be another project. Other the piston ring parts and normal sludge at the bottom of the oil pan, I haven't found anything else interesting.

I suppose I should drain the clutch housing now, and see what come out. I hadn't considered that until now...

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