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Case Tractors Discussion Forum
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Case 430D lost hydraulics

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mikeinmarion

10-19-2004 21:10:44




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I am using a 430 diesel and the hydraulics stopped working. The fluid in the gearcase is foamy and there is a knocking sound coming from under what I believe is the hydraulic pump. Is the loss of hydr. due to a clogged filter and where is it or is the pump shot? It is starting to snow and I would like to get tractor out of field but cannot raise bucket. Please help!




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mikeinmarion

10-25-2004 19:33:15




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 Re: Case 430D hydraulics now working! in reply to mikeinmarion, 10-19-2004 21:10:44  
Thanks to all for the comments. Fluid system was empty. Refilled, bled air out, everything works great now.



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mikeinmarion

10-25-2004 09:37:00




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 Re: Case 430D lost hydraulics in reply to mikeinmarion, 10-19-2004 21:10:44  
Thanks all!
I will check fluid and filters at the locations mentioned. I appreciate the feedback.



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Roger (Mi)

10-22-2004 05:29:16




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 Re: Case 430D lost hydraulics in reply to mikeinmarion, 10-19-2004 21:10:44  
Always check simple things first. The hydraulic oil level check plug is nearly above the foot clutch pedal and so is the hydraulic filter. There are four bolts in the small cover where the filter is located. If the oil level is good, and the filter is not plugged, then you will need to remove the top cover on the torque tube under the fuel tank. Before getting another hydraulic pump, make sure the relief valve (under the cover too) is working properly. If the relief valve is blocked open, changing the pump will do no good. If the relief valve is good, then you're looking at another hydraulic pump. Good luck.

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John Saeli

10-20-2004 05:09:02




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 Re: Case 430D lost hydraulics in reply to mikeinmarion, 10-19-2004 21:10:44  
Hey Mike: How's the fluid level?



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Whiteoak

10-20-2004 04:52:00




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 Re: Case 430D lost hydraulics in reply to mikeinmarion, 10-19-2004 21:10:44  
Sounds like you have a hole in a line someplace and it is drawning air into the system. Think you will need to bleed all the air off the system before she will work for you. The noise you hear could just be the air going through the pump instead of the oil. Does not mean the pump is bad. But i am in no way and expert withtractors. Paul



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