Maintenance Instructions

CLEANING

CLEANING

Engine Air Cooling System

To prevent engine overheating and possible engine damage, clean grass clippings, chaff and dirt from the rotating engine air intake screen every 8 hours of operation. In certain mowing conditions (dry grass, leaves, tree "cotton", etc.) it may be necessary to check and clean this area several times each day to prevent engine overheating. Also, visually check inside cylinder head shroud and between cylinder head fins for material packed in this area which would prevent cooling airflow; remove shroud and clean as required.

IMPORTANT: Yearly or every 100 hours, remove engine cooling shroud and clean cylinder head cooling fins to prevent overheating. Make sure cooling shroud is reinstalled properly.

Rotating Engine Screen

Keep Engine Screen Clean

CAUTION

Operating the engine with a blocked air intake screen, dirty or plugged cooling fins, and/or cooling shrouds removed will cause engine damage from overheating.

Clean these areas of dirt and debris

Clean Cooling Fins and Fan

Air Cleaner System

The engine is equipped with a paper air cleaner element with an oiled foam pre-cleaner which surrounds the paper element. Clean and re-oil the foam pre-cleaner every 25 hours; more often in dusty/dirty conditions. Clean the paper element every 100 hours and replace yearly (or when dirty or damaged). Service the air filter as follows:

•Remove air cleaner cover and remove foam pre- cleaner by sliding it off the paper element.

•Wash foam pre-cleaner in liquid detergent and warm water.

•Wrap foam pre-cleaner in cloth and squeeze dry (do not wring).

•Saturate foam in clean engine oil. Squeeze foam to distribute and remove excess oil.

•Remove the paper filter element by pulling it out of the air cleaner body.

•Clean the filter element using low pressure com- pressed air [less than 100 PSI (689 kPa)]. Blow out the filter from the interior of the element while turning the element.

NOTE: Washing the element in water or cleaning solution is not recommended. Replace the element if it does not clean up with compressed air.

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