Machine has been sitting a year. Went to it today. And machine will run perfect at any RPM. Tracking works properly. But any boom function or swing function and the machine will choke down and almost cut off before it will preform that function. Any ideas?
Just boom and swing? What about bucket or arm functions? What dash machine is it (-2,-3)?
Any boom or bucket functions and hydraulic thumb will die the machine down and I believe it’s a -2
First thing I would check on those machines are the fuses - F3 5A EC Motor fuse, F4 1A Valve backup fuse, F7 1A Valve controller fuse, F8 5A Solenoid 1 fuse and F9 5A Solenoid 2 fuse. Especially the F4 1A. You said the tracks work fine? They don't want to stall the machine too?
No. Tracks work just as they should. We managed to load the machine on a truck and get it off the truck just fine. But no other hydro function
Fuses good? If you have 24 V to your pump control solenoids try swapping the solenoid assemblies (make sure wiring stays in the same relative location, wires for solenoid closest to the engine stays closest to the engine) to see if your hydraulic issue changes to slow/weak hydraulics.