Walker MB (18 HP) Owner's Manual

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Contents

Walker MB (18 HP) Owner's Manual Manual pdf 38 page image

Maintenance Instructions LUBRICATION36LUBRICATIONProper lubrication is an important maintenance pro-cedure. It reduces wear and makes the machinequieter and easier to operate.Engine OilEngine Break-In OilNo special break-in oil is required. The engine is ser-viced with 10W-30, Service Class SG oil from thefactory. The oil should be changed after the initialengine break-in period of 5-8 hours. Thereafter,change oil after every 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 theengine 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 oillevel on the dipstick. The oil level should bewithin the “Operating Range” on the dipstick(between the LOW mark and the FULL mark).IMPORTANT: DO NOT operate engine withoutsufficient oil supply in the crankcase. DO NOToperate with oil level below the LOW mark orabove the FULL mark on the dipstick.Dipstick Operating Range5. If additional oil is needed, refer to Specificationsfor proper crankcase lubricant. Fill to the FULLmark.IMPORTANT: DO NOT overfill crankcase [oilabove FULL level] as this CAN result in engineoverheating, loss of power, and possibleengine damage.Changing Engine Crankcase Oil/Oil FilterChange the engine crankcase oil after every 50hours of operation and the oil filter after every 100hours of operation as follows:1. Park the mower on a level surface with theengine stopped. The engine oil should bewarm before draining. If not warm from opera-tion, start the engine and run a few minutes towarm the oil.2. Before removing the dipstick, clean the areaaround it to keep any dirt or debris out of theengine.WARNINGDO NOT attempt to lubricate the machinewith the engine running. Disengage thePTO clutch, shut off the machine, and re-move the ignition key.{ LOWMarkFULLMarkOperatingRange