Walker H37i Operator's Manual

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48Maintenance Instructions LUBRICATIONLUBRICATIONWARNINGDO NOT attempt to lubricate the machinewith the engine running. Disengage thePTO clutch, shut off the machine, and re-move the ignition key.Proper lubrication is an important maintenance procedure. It reduces wear and makes the machinequieter and easier to operate.Engine OilEngine Break-In OilNo special breakin oil is required. The engine isserviced with 10W30, Service Class SJ oil from thefactory. Change the oil after the initial engine break-in period of 5 hours. Thereafter, change oil afterevery 50 hours of operation.Checking Engine Crankcase Oil LevelCheck the engine crankcase oil level before use andafter each 8 hours of continuous operation.IMPORTANT: The importance of checking andmaintaining the proper crankcase oil level cannot beoveremphasized. Check the oil level BEFOREEACH USE.1. Park the mower on a level surface with the en-gine stopped. Also, make sure the engine iscool and oil has had time to drain into the sump[allow at least five (5) minutes after stoppingthe engine].IMPORTANT: NEVER check or add oil with theengine running.2. Before removing the dipstick, clean the areaaround the dipstick to keep any dirt or debris outof the engine.3. Remove the dipstick, wipe off with a clean rag,then reinsert the dipstick into the tube and pressall the way down.4. Remove the dipstick again and check the oil level on the dipstick. The oil level should be withinthe “Operating Range” on the dipstick (betweenthe LOW mark and the FULL mark).IMPORTANT: DO NOT operate engine withouta sufficient oil supply in the crankcase. DO NOToperate with oil level below the LOW mark orabove the FULL mark on the dipstick.5. If additional oil is needed, refer to Specificationsfor proper crankcase lubricant. Fill up to, butnot above, the FULL mark on the dipstick.IMPORTANT: DO NOT overfill the crankcase(oil above FULL mark) as this CAN result in engine overheating, loss of power, and possibleengine damage.FULLMarkOperatingRangeLOWMarkDipstick Operating Range