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Allis Chalmers Discussion Forum

7580 Allis maintenance

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Ron Sa

08-05-2008 06:49:22

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A friend of mine just bought a 7580 Allis and we want to get it field ready. How do we check the oil level in the rear axle? We found the transmission dip stick that is in front of the articulation joint. We see several hydraulic lines running between the rear axle and the transmission. Is the rear axle a dry sump setup that is lubricated from the transmission that is in front of the articulation joint?

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856 puller

08-07-2008 04:57:18

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 Re: 7580 Allis maintenance in reply to Ron Sa, 08-05-2008 06:49:22  
toms warning is good advice that top shaft turnes engine speed and is for the pto and pumps. the lines you see are for the breaks they come out of the rear and go back there. remember that is a 180 hp tractor if you turn it up mutch or lug it you will pay sooner than later

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Tom from IL

08-07-2008 04:14:23

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 Re: 7580 Allis maintenance in reply to Ron Sa, 08-05-2008 06:49:22  
You may already know this, but I"ll throw it out anyway--U-joints at the front end of the driveshafts spanning the articulation joint are constant velocity type double joints with a centering ball. These things must be greased religiously and frequently. I don"t think it"s possible to grease them too much. They are expensive and a PITA to replace. That being said, I think some of the 7580"s may have received an update kit eliminating those CV joints.

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cadet trooper

08-05-2008 16:54:34

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 Re: 7580 Allis maintenance in reply to Ron Sa, 08-05-2008 06:49:22  
856 is right on it.

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856 puller

08-05-2008 16:15:48

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 Re: 7580 Allis maintenance in reply to Ron Sa, 08-05-2008 06:49:22  
the 7580 has sight glasses on the rear end like a 7040. behind the remote outlets

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