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03-25-2010, 01:26 PM
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#1
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Registered User
Join Date: Mar 2010
Posts: 2
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International 434 Hydraulics
I recently bought a 434 and am having problems with the hydraulics. I am getting a reading of over 1600PSI but cannot lift more than 400 pounds with the loader or more than 700 pounds witrh the 3 point hitch. I have changed oil and cleaned the filters with the exception of the one that goes from the casting under the seat to the pump. Unsure as to how to remove this filter. Any suggestions will be greatly appreciated. Thanks
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03-25-2010, 09:58 PM
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#2
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Registered User
Join Date: Dec 2003
Posts: 9,043
Liked 1 Times on 1 Posts
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I picture would be helpful. Is the filter in a metal case bowl with a bolt holding the bowl on?
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03-30-2010, 08:15 AM
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#3
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Registered User
Join Date: Mar 2010
Posts: 2
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Hyd filter
The filter is not in a metal bowl, according to the parts manual it is on the end of a metal tube and slides into the casting under the seat. There is no fastening hardware to be seen. I don't know if it is held in place by an o-ring or what.
Thanks
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03-30-2010, 09:57 AM
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#4
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Registered User
Join Date: Dec 2003
Posts: 9,043
Liked 1 Times on 1 Posts
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I am not real familiar with this tractor so please bear with me. It sounds like this filter may be a screen type filter. It may be held in place with a threaded plug. Do you see anything like that in this area?
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05-07-2010, 05:51 AM
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#5
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Registered User
Join Date: Dec 2009
Posts: 2
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Bob is corrrect, it is what looks like a blank plug in the casing near the large flexible hydraulic pipe. Inside is a very fine metal mesh filter
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12-06-2011, 02:26 AM
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#6
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Registered User
Join Date: Dec 2011
Location: Wanaka, New Zealand
Posts: 4
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434 hydraulic filter
to remove the filter, loosen off the inlet pipe hose fitting, and slide forward, then simply ease the wire mesh screen filter forward out of the housing, clean in a solvent, old toothbrush is good.
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12-06-2011, 02:33 AM
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#7
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Registered User
Join Date: Dec 2011
Location: Wanaka, New Zealand
Posts: 4
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434 hydraulics
mowing hay with the 434 today, and the hydraulic lift simply stopped lifting, pump and remotes are fine oil level is good , suspect the governor valve is sticking, I know where this is on earlier Fiat tractors anyone able to point me in the right direction or do I have to remove the valve block?
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12-06-2011, 12:04 PM
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#8
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Registered User
Join Date: Apr 2010
Location: Was Grantham Lincs, Englang, now relocated to Fareham, Hampshire., England.
Posts: 213
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Do you have aservice manual ?? if not i can supply amanual for 354/444 which are two models later than yours. (Explains in colour how hydraulic system functions)/
Send me a PM with your e mail for more details
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12-12-2011, 12:05 PM
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#9
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Registered User
Join Date: Dec 2011
Location: Wanaka, New Zealand
Posts: 4
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Thanks I used the link to the IH parts site, removed the seat and the plate on top of the housing, to check that linkages were ok, they were, then removed the valve between the high pressure inlet and the plug secured with a circlip on the lef of the valvebloc I suspect that this had stuck although nothing obvious, reassembled and everything worked fine. In Fiat terminology I guess this would be the 'governor valve' G
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