Maintenance Instructions CLEANING55Cylinder Head Cooling FinsIt is essential for performance and longevity of theair-cooled engine to keep the cylinder head coolingfins clean and free of obstruction. After every 8hours of operation, check the performance of thecooling system by starting the engine, holding ahand adjacent to the cylinder head, and feeling thecooling airflow. If there is little or no airflow, cleanthe cooling fins as described below.DANGERMake sure to keep hands clear of exhaustpipe, muffler, and moving parts whenchecking airflow.Every 100 hours, inspect and clean the cooling fins(more often when operating in extremely dusty, dirtyconditions). Remove the two (2) cooling fin accesspanels in the engine shroud and clean the coolingfins and external surfaces using compressed air.Make sure to reinstall the access panels before op-erating the engine.NOTE: If dirt is packed into the cooling fins it maybe necessary to remove the engine shroud in orderto thoroughly clean the cooling fins.Engine CoolingFin Access PanelsKohler EngineShroudEngine AirIntake ScreenEngine Air Intake Screen andCooling Fin Access PanelsCheck Airflowwith HandCooling System AirflowGrass Buildup in Mower HousingDANGERBefore raising or removing the mowerdeck for cleaning, stop the engine, removethe ignition key, and disconnect the sparkplug wires.1. Raise the deck lock lever handle on each sideof the carrier frame and pull out to release car-rier frame for tilting action.2. Using the carrier frame lift handle, raise deck tothe TILT-UP position and insert the deck hookinto the tilt-up latch on the tractor body.Tilt-Up HookDeckTilt-Up LatchTilt-Up LatchDeck Lock LeverTilt-Up Lift HandleDeck Secured in TILT-UP Position