check inputs pump converter , encoder signal motor etc , if oke run hydraulic test, converter error , replace it

Hi,
Thanks for your reply, software load with pc.., but show ing 6612 error control unit. Machine display on main contactor is on. But no function.. please guide for this.. any.. 02 nos more error 3972 & 3505 related accelerator.. accelerator calibration faild.. please guide for these issue.. main error 6612. Fetal error in converter F
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first set Su , after truck on copy data from old MCU in SU. After this replace MCU for new , Copy data in MCU after set truck on. You must calibrate all functions.

If you replace MCU and SU same time , you must load software with pc...