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Allis Chalmers Discussion Forum

Allis WD hydraulics??

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Davey G

05-09-2008 18:00:06

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What causes the hydraulics to "creep"? If I have
implement on lift arms, or am using hydraulic
outlet, and lower it all the way down and let go it will stay down for a few seconds and then begin to creep up until it is all the way in the raised position. Thanks in advance.


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Duey (IA)

05-11-2008 07:59:48

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 Re: Allis WD hydraulics?? in reply to Davey G, 05-09-2008 18:00:06  
If the steering post is too far forward in the fastening bolt holes, the bottom of the hydraulic control rod may bottom out and not let the friction block do its job. To adjust, loosen the steering post bolts, pull back the post and tighten the mounting bolts. Also be sure the spring under the quadrent is not broken.

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05-10-2008 07:40:07

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 Re: Allis WD hydraulics?? in reply to Davey G, 05-09-2008 18:00:06  
A worn friction block will cause that to happen with the throttle lever. If I remember right Allis dealer told us years ago when we replaced it to replace the one on the hydraulic lever as well or it would eventually cause that problem.

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Texas Denny

05-09-2008 18:46:34

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 Re: Allis WD hydraulics?? in reply to Davey G, 05-09-2008 18:00:06  
What raises? The implement or the lift lever by the steering wheel?

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Davey G

05-09-2008 23:51:35

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 Re: Allis WD hydraulics?? in reply to Texas Denny, 05-09-2008 18:46:34  

Both the lever and the implement raise.

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Texas Denny

05-10-2008 07:19:17

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 Re: Allis WD hydraulics?? in reply to Davey G, 05-09-2008 23:51:35  
If the lever raises, the implement will follow and raise also. I don't have a WD or WD-45 in front of me so I am going totally by memory. The IT manual gives no help. I know of nothing in the system that would cause this lever to move unassisted. There is linkage for the lever and sometimes the hoses can interfere with the motion of the levers. So I'd check that first. I don't think there should be any extension springs on the linkage. If there are, remove them and see if the problem is fixed.

This seems like a very baffling problem. Hope someone else can help.

Additional info might help. Did you just buy the tractor? If not, is this a new problem?

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