Husqvarna MZ 52 Operator's Manual page 41

Action
At Least Once Each Year
Clean the engine's cooling air intake
Replace the air cleaner's foam prefilter
Replace the air filter's paper cartridge
Change the engine oil
Replace the engine oil filter
Check/adjust the cutting height
Check/adjust the park brake
Clean/Change the spark plugs
Inspect spark plug
Check the engine valve clearance
SERVICE JOURNAL
41
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