Poulan Pro Pro 900 ZX 968999302 - Manual (Page 71)

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SERVICE JOURNAL
Action Date, mtr reading, stamp, sign
50-Hour Service
1. Perform the 25-hour service.
2. Clean/replace the air cleaner’s filter cartridge (paper filter)
(shorter intervals for dusty operating conditions).
3. Change the engine oil.
4. Inspect muffler/spark arrester.
5. Check/adjust the parking brake.