Try replacing the engine fuel filters, it takes small amount of fuel to run engine under no load condition. It takes lots of fuel to run under power. Be sure the engine is actually putting out the horsepower before messing with the hydraulics. Let me know.
i will change fuel filters. i know when pumps were done 1 pump was pretty much destroyed so i was thinking sumthin with hydraulics.
If fuel filters don't help, locate the main pressure relief valve and check it for debris. It could be stuck and not releving the pressure, causing gross overload on the engine, but the engine should show signs of heavy black smoke before dieing out.
engine dosent show any real major smoke.seems normal amount of smoke.
Hi. so i replaced fuel lines and mite of bin abit better.i had it reved up and was walking machine,when i start walking engine draws down and stays there if i stop it reves back up.
i have not checked that . is that something that can happen by itself ?