12.LEFT CRANKSCASE/CRANKSHAFT/ BALANCE SHAFT MXU 500 IRS Bearing Puller Primary Drive Shaft Bearing BEARING/OIL SEAL REPLACEMENT IN THE LEFT CRANKCASE BALANCE SHAFT/COUNTERSHAFT/ PRIMARY DRIVE SHAFT/BALANCE SHAFT BEARING REPLACEMENT Remove the balance shaft/countershaft/primary drive shaft /drive shaft bearing by using the special tool. Special tool: Bearing puller A120E00037 Drive Shaft Bearing Balance Shaft Bearing Bearing Driver Install the new bearing by using the special tool. Special tool: Bearing driver A120E00014 Primary Drive Shaft Oil Seal Check the oil seals Wear or damage replace Shift Shaft Oil Seal 12-6