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Hello all
I have a JCB 801.4 (1996 model), its slow and the tracks pull to one side, it also seems to lose power to the digger arm, amongst other things. Having done a search on the forum and looking at answers from the members, it seems it could be the relief valves.
I am new to the forum, and was wondering if anyone knows of any mobile fitters familiar with the old JCBs. I am in Lincolnshire and so far the JCB people I have spoken to only work on newer machines.
Look forward to your replies, thank you
I have a JCB 801.4 (1996 model), its slow and the tracks pull to one side, it also seems to lose power to the digger arm, amongst other things. Having done a search on the forum and looking at answers from the members, it seems it could be the relief valves.
I am new to the forum, and was wondering if anyone knows of any mobile fitters familiar with the old JCBs. I am in Lincolnshire and so far the JCB people I have spoken to only work on newer machines.
Look forward to your replies, thank you
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.. it could also be a worn pump, infact TBH thats what I would test first, you need someone to pressure test it to be sure ... Not the end of the world , and yes a few bob to sort but in the scheme of things ... no the worst. Certain services are grouped through the valve block, but on older systems, particularly where its a multiple section gear pump that provides the power, if one section of gears isnt putting out enough pressure, it will have the effect of knocking out 2 or 3 sevices simultaneously which is what you describe, can you post a pic of the pump ?
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.. very nice of them. Well those pumps quite commonly wear out, and when they do its a throw away job, unless you can cobble two failed ones together, but its hardly worth it.
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