Walker MS (13 HP) Owner's Manual

Also see for MS: Detailed instructions Illustrated parts manual Owner's manual Operator's manual

Contents

Walker MS (13 HP) Owner's Manual Manual pdf 55 page image

Maintenance Instructions CLEANING51Engine Air Intake ScreenCylinder 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, clean thecooling fins as follows:NOTE: The planned maintenance schedule callsfor cleaning the cylinder head cooling fins yearly orevery 300 hours as a minimum.Cooling System Airflow1. Remove the exhaust shroud by removing thetwo (2) bolts and one (1) nut as shown in theInspect and Clean Cylinder Head CoolingFins photo on the following page. Clean theaccessible cooling fins by blowing with com-pressed air. If the buildup is excessive, refer tostep 2; if the buildup is not excessive, reinstallthe exhaust shroud.2. Remove the spark plug wire and disconnect thebreather tube on the valve cover. Do not dis-connect the breather tube from the carburetorside. Remove the cylinder head shroud byremoving the four (4) bolts, as shown in theInspect and Clean Cylinder Head CoolingFins photo. Cover the breather tube end andspark plug boot before cleaning out the coolingfins. Clean the cooling fins by blowing with com-pressed air. If the buildup is excessive, use apiece of wire to probe into the fins for cleaning.3. Reinstall the shrouds by reversing the precedingsteps. Start the engine and confirm the coolingairflow.Inspect and CleanCylinder Head Cooling Fins(viewed from left side of tractor)DANGERMake sure to keep hands clear of exhaustpipe, muffler, and moving parts whenchecking airflow.RotatingEngine AirIntake ScreenExhaust ShroudCheck for AirflowCylinder Head ShroudBolts (not visible) Breather TubeExhaust ShroudNut (not visible)and BoltsSpark PlugWire Cylinder HeadShroud Bolts