54
At Least Once Each Year
Clean the engine’s cooling air intake (25 hours).
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Replace the air cleaner’s pre-lter (foam) (300 hours).
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Replace the air lter’s paper cartridge.
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Change the engine oil (50 hours).
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Replace the engine oil lter (100 hours).
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Check/adjust the cutting height.
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Check/adjust the parking brake (50 hours).
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Clean/Change the spark plugs (100 hours).
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Change the fuel lter (100 hours).
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Check the engine valve clearance.
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300-Hour Service
Perform the 25-hour service.
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Perform the 50-hour service.
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Perform the 100-hour service.
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Check/adjust the mower deck.
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Clean the combustion chamber and grind the valve seats.
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Check the engine valve clearance.
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Replace the air cleaner’s pre-lter (foam).
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