I have a kobelco sk300lc4 engine will bog when using 2 functions at once mainly. Both tracks will bog engine so that tells me both pumps are the problem. Also if u rev it all the way up you can pretty much dig normal just only move the sticks 3/4 of the way and won't bog. I replaced the 1 psv solenoid , also redid the wires because they were broken. No change. Also the machine has a hand throttle none of the auto throttle stuff works anymore. The computer comes on and just says throttle fault or whatever. I've switched the manual swith behind seat no change. The mode switxh dosent seem to change anything , the heavy lift clicks but I see no change. Machine is stuck in rabbit travel also.
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