Does anyone know the specs & part number for the hyd. pump for a 420c with the 90 loader. Mine seems a little weak? I can't make the number out on the tag of the pump. I think it has been replaced. How much pressure should it be putting out? Any idea where I could get a rebuilt pump or a reasonable subsitute pump. Right now I can't lift more than a ton, and I can't pick the rear of the crawler off the ground. Please help.
Thanks,
Mike
JD 420 with 90 loader hyd pump
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