fm 447 fe15 fault

wondered if anyone has a fault similar to this arrived site fm17 its gone fe15 a distinct smell of burning opens the zappi find mosses blown apart hydraulic bank check cabling down to motor all ok disconnect hyd motor mega the motor i checked every single segment on that motor all ok so fitted a zappi taught it in all ok left truck running a couple of days later called to the truck again truck running but smells of burning fe63 and fe65 run diagnostics all ok but motor speeds slow taught in again still the same checked pressure there all ok disconnect pump try it again truck all good errors gone fitted new pump touch wood been ok since
obviously pump stresses motor
motor stresses zappi bobs your uncle
well i thought it was a good one anyway