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    cat 428f hydraulic tank blowing out oil.

    have a cat 428f with plastic hydraulic tank which is pushing out oil from the tank cap which is plastic.. hydraulic pump has been checked and even on start up the oil comes out the cap.. is the tank supposed to be pressurised.. could it be a matter of replacing the cap.. rather lost on this one
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    cat 424d

    Hi please can anyone possibly help with the schematics for the rear valve bank more importantly the placement of the operating spools as they are all different the valve was stripped by a mechanical without marking where they go not the swing cylinders are not functioning. . Any help would...
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