Hello everyone. I have two Hydrema R800 and R1820 caterpillar excavators. In both machines, the problem was with the efficiency and engine power - the previous owners changed the hydraulic settings. I would need at least part of the service manual on how to set up the LS hydraulic system, I can't decorate it and all machines from those years, regardless of whether the tracks or wheels, have identical hydraulic distributors. I am asking for help from owners of Hydrema excavators or anyone who knows something about it.