Tecumseh Products OH318EA Operator Manual - Page 17
Anti-Icing Baffle - muffler
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III. Removal and Installation of OH318EA Air Filters 1. Remove wing nuts and air cleaner cover. See Figure 33. 2. Remove foam filter from paper filter. 3. Remove paper filter from base. 4. Inspect filters for discoloration or dirt accumulation. If either is present, see "I. Servicing Foam Filters" and/or "II. Servicing Paper Filters" instructions on page 14. Afterward, continue reading instructions below. 5. Clean inside of base and air cleaner cover thoroughly. 6. Install paper filter into base. 7. Install foam filter onto paper filter. 8. Install air cleaner cover on base. 9. Install wing nuts and tighten securely. E. Anti-Icing Baffle Some engines may be equipped with an anti-icing air cleaner baffle that prevents ice from forming in the carburetor when the engine is run at temperatures below 32°F (0°C). Engines equipped with the baffle will have an opening which draws warm air from the muffler into the air cleaner housing. To work effectively, it is necessary for the baffle to block cold air from entering the air cleaner. NOTE Be sure air cleaner cover is in correct "WINTER" or "SUMMER" position before operation. At Temperatures of 32°F (0°C) and Below 1. Remove wing nuts from air cleaner cover. See Figure 33. 2. Remove air cleaner cover from base. 3. Rotate air cleaner cover in "WINTER" position shown. See Figure 34. 4. Install air cleaner cover onto base. NOTE Be sure air cleaner cover is in correct "WINTER" position. 5. Install wing nuts and tighten securely. At Temperatures Above 32°F (0°C) 1. Remove wing nuts from air cleaner cover. See Figure 33. 2. Remove air cleaner cover from base. 3. Rotate air cleaner cover in "SUMMER" position shown. See Figure 34. 4. Install air cleaner cover onto base. NOTE Be sure air cleaner cover is in correct "SUMMER" position. 5. Install wing nuts and tighten securely. 1 1 Climate Guard 2 ! RUN CHOKE 3 4 5 1. Wing Nuts 2. Air Cleaner Cover 3. Foam Filter 4. Paper Filter 5. Base Figure 33. Climate Guard Assembly Climate Guard ! RUN CHOKE 1 Climate Guard ! RUN CHOKE 2 1. Summer Position-Above 32°F (0°C) 2. Winter Position-Below 32°F (0°C) Figure 34. Air Cleaner Cover Positions 181-719-14 Four-Cycle Engine • Horizontal Crankshaft • Air-Cooled Page 15