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Allis Chalmers Discussion Forum
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Allis charmers 7040 hydraulic fluid pumping into the rearend

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Ssrfarms

01-10-2019 17:47:56




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I have a Allis Chalmers 7040 that is pumping hydraulic fluid from the transition into the rear end. Is this due to a bad seal in the stack of pumps ? Any help would be appreciated!




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DrAllis

01-11-2019 05:26:42




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 Re: Allis charmers 7040 hydraulic fluid pumping into the rea in reply to Ssrfarms, 01-10-2019 17:47:56  
That is usually what it is....the shaft seal between the gerotor (transmission) pump and the steering (rear end) pump. Now, that being said, there could be serious pump bushing/bearing issues causing the seal to leak. It's been 25 years since I've replaced one of those seals and those tractors are now 25 yrs older.



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