Husqvarna RZ4216 Operator's Manual page 52

Action
After the First 10 Hours
1. Change engine oil.
25-Hour Service
1. Check the fuel pump's air filter.
2. Check the hydraulic system's oil level.
3. Check the tire pressures.
4. Lubricate the belt adjuster, mower deck.
5. Lubricate the belt adjuster, hydraulic pumps.
6. Check/clean the engine's cooling air intake.
7. Clean air filter dust cap.
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