1.Sehlahisoa se secha se ntlafalitsoeng sa QT457 axle, se nang le torque ea 42000Nm se eketsehile ka 5% ho feta QT 457 axle;
2.Ho sebelisa lipoleiti tsa tšepe tse khethehileng tsa matlo ho kopana le bokhoni bo phahameng ba ho jara le ho tšepahala ho phahameng, le ho hlokomela boima bo bobebe;
3. Ho amohela moralo o fapaneng oa li-bearings ho ntlafatsa bophelo bo felletseng, ho ntlafatsa sebopeho sa sejari sa li-axle tse bohareng, le ho ntlafatsa thepa ea ho tlotsa;
4.E sebelisoa bakeng sa likoloi tsa boemo ba litsela tse rarahaneng, tse ka kenngoeng ka liloko tse fapaneng tsa mabili le lisebelisoa tse sebetsang tsa lubrication ho netefatsa ho tšepahala ha axle eohle;
5.Ho amohela li-hub-bearing units tse sa hlokeng tlhokomelo ho hlokomela sebaka se se nang tlhokomelo sebakeng sa 500,000 km;
6.Oil exchange mileage ea 100,000 km, e ka bolokang litšenyehelo tsa tlhokomelo.