Standard Coolant Oil Coolant Separator MaintenanceSep 20 2018· Disconnect the coolant return hose [4] and coolant drain hose [5] Remove the oil separator [8] from the oil separator tray [7] Remove the 13 screws [6] Remove the oil separator [8] from the oil separator tray [7] Clean and remove all chips from the removed parts Clean the input pipe [10] and coolant drain pipe [11]