Husqvarna EZ4824 CA Operator's Manual page 56

Action
After the first 5-8 hours
Change the engine oil.
25-Hour Service
Check the engine air filter.
Sharpen/Replace mower blades if required.
Check the tire pressures.
Check battery cables.
Lubricate according to lubrication chart.
Check/clean the engine's cooling air intake.
Clean the air cleaner's pre-filter (foam).
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SERVICE JOURNAL
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