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Now I'm Wondering

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Allan In NE

06-05-2006 19:06:12

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Hi Guys,

Kicked the duals off the little 686 today and put it on the baler in place of the 966.

Noticed right off that everything on the baler just seemed to "work better". Then it dawns on me that the 686 has better hydraulics (had replaced the pumps on it a year ago).

Hmmmm, now I wondering if a guy shouldn't just arbitrarily replace those hydraulic oil pumps "just because" when the tractors get up there around 4,000 hours?

Maybe they are kinda like a carburetor that gradually goes "bad" over time?

Dunno, just a thought.

Allan

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Steven@AZ

06-05-2006 20:21:45

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Re: Now I'm Wondering in reply to Allan In NE, 06-05-2006 19:06:12

I dunno, 1086 with almost 9000 hours never been touched and 1256 with 7700 hours never been touched seem to be working fine.

There were 2 pumps available... one had a higher flow rating and could be what is on your 686.

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MN Scott

06-05-2006 19:45:00

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Re: Now I'm Wondering in reply to Allan In NE, 06-05-2006 19:06:12

I had my ol' 706 on a flowrater last winter and she tested up to specs with 6500 hours on the clock. I know the pump's have never been touched on it. I think it has to do with the maintance they have had in their lifetime. If you think your pump is getting weak have it flowrated before you start spending money. I remember that the 966 was going to need a rear end overhaul last fall but then you put some hours on it and it self corrected. Could you have a plugging filter from the gear rust? Just a thought.

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Allan In NE

06-06-2006 02:00:57

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Re: Now I'm Wondering in reply to MN Scott, 06-05-2006 19:45:00

That's why I like coming here, I guess. To bounce ideas off you guys.

The thing was tested and a new relief valve installed when I bought it. Maybe I'll try the filter change idea first just to see what happens. :>)

Thanks,

Allan

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IaGary

06-05-2006 19:44:20

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Re: Now I'm Wondering in reply to Allan In NE, 06-05-2006 19:06:12

4000 hours Hmmm.

Now that you mentioned it thats about when they got replaced on 2 of the three 1086's that I owned.

Other one hasn't reached 4000 yet.

You may be on to something.

Gary

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