37SERVICE JOURNAL100-HOUR SERVICEAction Date, mtr reading, stamp, signDo the 25-hour service rDo the 50-hour service rChange the engine oil filter rClean/replace the spark plugs rReplace the fuel filter rCheck V-belts rCheck / tighten caster wheel axle bolts (at 200 hour intervals) rChange the air filter’s paper cartridge r300-HOUR SERVICEAction Date, mtr reading, stamp, signDo the 25-hour service rDo the 50-hour service rDo the 100-hour service rCheck / adjust the mower deck rClean the combustion chamber and grind the valve seats rCheck the engine valve clearance rReplace the air cleaner’s foam pre-filter rAT LEAST ONCE EACH YEARAction Date, mtr reading, stamp, signClean the engine’s cooling air intake (at 25 hour intervals) rReplace the air cleaner’s foam pre-filter (at 50 hour intervals) rReplace the air filter’s paper cartridge rChange the engine oil (50 hours) rReplace the engine oil filter (100 hours) rCheck / adjust the cutting height rCheck / adjust the park brake (50 hours) rClean / change the spark plugs (100 hours) rChange the fuel filter (100 hours) rCheck the engine valve clearance r