I have a 320bl it has 8000hrs been great machine but only when I track it's slow and temp runs up can't even track up/ over little dirt mound. Any thoughts? Thanks
The rotary swivel manifold in the center of the machine, most likely needs new seals. Could also be relief valves, pump settings/sensors, bad track motors. With 8,000 hours if the swivel hasn't been rebuilt yet, start there. Track motors may be getting tired also with that many hours. There's a procedure for checking pressures and also case drain flow from each motor, get your hands on a manual or convince somebody to copy off the pertinent sections for you.