Im new so hello to all, my excavator hydraulics are slow to power up but then seem to work fine until the machine is warm. The engine seems to make 2 notes scimilar to when a generator is coming on and off load and when the machine is hot the hydraulics kind of bog down the engine when under load if the loading action corresponds with the changing of note from the engine. Also when Im moving in rabbit speed you can feel the change of engine note in the speed of movement. Does that senario ring any bells? Thanks Nick
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