Tecumseh Products OHM110 Operator Manual - Page 16
Removing Debris from Engine, Spark Plug, Cleaning/Replacing Air Cleaner - oil filter
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B. Removing Debris from Engine Before each use, remove grass clippings, dirt and debris from the following areas: • Levers and Linkage • Cooling Fins • Air Intake Screen • Guards Removing debris will insure adequate cooling, correct engine speed and reduce the risk of fire. See Figure 31. C. Spark Plug Check spark plug yearly or every 100 operating hours. 1. Clean area around spark plug. 2. Remove and inspect spark plug. 3. Replace spark plug if porcelain is cracked or if electrodes are: • Pitted • Burned • Fouled with Deposits 4. Check electrode gap with wire feeler gauge and set gap to-.030 in. (0.76 mm) if necessary. See Figure 32. 5. Install spark plug and tighten securely. NOTE A resistor spark plug must be used for replacement. Contact your Authorized TecumsehPower Servicing Dealer for a genuine replacement Resistor Spark Plug. D. Cleaning/Replacing Air Cleaner Your engine has an air cleaner which helps prevent premature engine wear and failure. NEVER run engine without complete air cleaner installed on engine. Your air cleaner periodically needs to be cleaned or replaced. NOTE Contact your Authorized TecumsehPower Servicing Dealer for a genuine replacement Air Cleaner. I. Servicing Foam Filters Clean foam pre-filter every 3 months or every 25 operating hours. Clean daily if used in extremely dusty conditions. After removing the pre-filter, follow these cleaning instructions below: 1. Wash in warm water and detergent solution then press (DO NOT twist) until all dirt is removed. 2. Rinse thoroughly until water is clear. 3. Wrap in a clean cloth and press (DO NOT twist) until completely dry. 3 Climate Guard ! RUN CHOKE 1 4 2 1 1. Levers and Linkage 2. Air Intake Screen 3. Muffler Guard 4. Cooling Fins Figure 31. Debris Removal Areas 2 3 1 1. .030 (0.76 mm) Gap 2. Electrodes 3. Porcelain Figure 32. Resistor Spark Plug NOTE DO NOT oil foam pre-filter. 4. Replace foam pre-filter onto paper filter. II. Servicing Paper Filters Paper filters cannot be cleaned and must be replaced once a year or every 100 operating hours; more often if used in extremely dusty conditions. Replacement filters are available at an Authorized TecumsehPower Servicing Dealer. NOTE DO NOT put oil on or clean a paper filter. Page 14 Four-Cycle Engine • Horizontal Crankshaft • Air-Cooled 181-719-14