No. Description 7800611 Simplicity Axion Model ZT18533, 18.5HP w/ 33” Mower 7800616 Simplicity Axion Model CZT18533, 18.5HP w/ 33” Mower (California Model) 7800620 Snapper 150Z Model SC18533, 18.5HP w/ 33” Mower 7800625 Snapper 150Z Model CSC18533, 18.5HP w/ 33” Mower (California Model) 7800612 Simplicity Axion Model ZT2142, 21HP w/ 42” Mower 7800617 Simplicity Axion Model CZT2142, 21HP w/ 42” Mower (California Model) 7800615 Simplicity Axion Model ZT2142, 21HP w/ 42” Mower (Australia Model) 780

• Fill the fuel tank with fresh fuel. FUEL RECOMMENDATIONS For daily operation: Use only unleaded gasoline with a pump sticker octane rating of 87 or higher. Gasohol (up to 10% ethyl alcohol, 90% unleaded gasoline by volume) is approved as a fuel. Methyl Teriary Butyl Ether (MTBE) and unleaded gasoline blends (up to a maximum of 15% MTBE by volume) are approved as a fuel. Do not use unapproved gasolines, such as E85. Do not mix oil in gasoline or modify the engine to run on alternate fuels. This

27 SERVICE AIR FILTER & PRE-CLEANER - 18.5 & 21 HP ENGINES NOTE: Air filter configuration may differ from shown. Consult engine manual for further information. Interval: Pre-Cleaner: Every 25 hours or as required. Air Filter: Every 50 hours or as required. Replacement Interval: Pre-Cleaner: As required. Air Filter: Every 200 hours or once per season. Air Filter Removal & Installation 1. Lift up on the bottom of the latch (A, Figure 37 or 38) and flip the latch away from the cover. 2. Remove the