490 - EXCAVATOR HYDRAULIC SYSTEM 4360 Parts group HYDRAULIC SYSTEM 4360 HYDRAULIC SYSTEM 4360 . SWING MOTOR [02G15] SWING MOTOR [02G17] SWING MOTOR (CONTINUED) [02G19] SWING DEVICE [02G21] REPLACEMENT SWING DEVICE [02G23] RELIEF VALVE (SWING MOTOR) [02H01]