Applicable scope: DCi11-375, DCi11-420, Reynolds DCI11-340 related accessories: flywheel shell, clutch disc, clutch working principle: engine power output of the inertial position: fault and fault analysis of rear crankshaft: (1) the causes of the cracking of the flywheel surface ablation: start too fierce common failure due to improper operation of the flywheel scratch, fight tooth (2) analysis and ablation of the tooth tooth ring gear and flywheel starter gear meshing impact is not good