Cub Cadet 1X 21 inch LHP Operation Manual - Page 12
Spark Plug Service, Air Filter
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2. Be sure that the fuel fill cap is on and securely tightened. 3. Be sure to find correct oil drain plug location, if present (see the equipment Operator's Manual instructions for additional information). 4. Clean area around the oil drain plug. 5. Place an approved recyclable oil container under the oil drain plug. 6. Remove the Oil drain plug. See "Figure 6-3". NOTE: Depending on which engine model you have, the oil plug may be positioned differently. These positions include on the front and/or rear side of the block, or as an extended tube. Examples are shown in "Figure 6-3". Oil Drain Figure 6-3 WARNING! Used engine oil may cause skin cancer if repeatedly left in contact with the skin for prolonged periods. Although this is unlikely unless you handle used oil on a daily basis, it is still advisable to thoroughly wash your hands with soap and water as soon as possible after handling used oil. 7. Tip engine to position the oil flow, so it will drain from the lowest point on the engine. 8. Drain the oil into an approved recyclable oil container. NOTE: Please dispose of used engine oil in a manner that is compatible with the environment. We suggest you take it in a sealed container to your local service station for reclamation. Do not throw it in the trash or pour it on the ground. 9. Install the oil drain plug and tighten securely. 10. Clean area around the oil drain plug. 11. Remove the oil fill cap dipstick. 12. Fill with the recommended Oil. See "Figure 6-3". NOTE: DO NOT overfill oil filler. Doing so may result in oil carry-over to the equipment and cause malfunction or damage. NOTE: DO NOT allow oil level to fall below and "L" mark on dipstick. Doing so may result in equipment malfunction or damage. 13. Wipe away any spilled oil. 14. Check the oil level by installing the Oil Fill Cap/Dipstick. • For threaded Oil Fill Cap/Dipstick models, rest the cap on the threads, do not tighten down the cap to check the oil level. • For quarter-turn Oil Fill Cap/ Dipstick models, tighten down the cap to check the oil level. NOTE: See the Set-Up section earlier in this manual for detailed instructions on identifying and checking the oil on each of these specific engine models. 15. Remove the oil filler cap/dipstick. If the level is low, slowly add oil until oil level registers between high (H) and low (L), Figure 3-2 and Figure 3-3 in the Set-Up section. 16. Repeat Steps 14 & 15 to be sure that the correct oil level has been achieved. 17. Once the proper oil level has been confirmed, install the Oil Fill Cap/Dipstick. Tighten securely 18. Carefully disconnect spark plug wire from grounding post, if present. 19. Carefully reconnect the spark plug wire to the spark plug. NOTE: It is advisable to recheck the oil level after you have operated the engine for a short while, and the normal engine operating temperature has been achieved. WARNING! If the engine has been running, the muffler, engine head and spark plug will be very hot. Be careful not to touch any of these components until they have cooled. 3. Use a spark plug wrench to remove the plug. WARNING! If the engine has been running, the muffler, engine head and spark plug will be very hot. Be careful not to touch any of these components until they have cooled. 4. Visually inspect the spark plug. Discard the spark plug if there is apparent wear, or if the insulator is cracked or chipped. Replace the plug if the electrodes are pitted, burned or fouled with deposits. 5. Clean the spark plug with a wire brush if it is to be reused. 6. Measure the plug gap with a feeler gauge. Correct as necessary by bending side electrode. See "Figure 6-4". The gap should be set to 0.030 in. (0.76mm). 7. Check that the spark plug washer is in good condition 8. Thread the spark plug in by hand to prevent cross-threading. 9. After the spark plug is seated, tighten with a spark plug wrench to compress the washer. NOTE: When installing a new spark plug, tighten 1⁄2 turn after the spark plug seats to compress the washer. When reinstalling a used spark plug, tighten 1⁄8-1⁄4 turn after the spark plug seats to compress the washer. NOTE: The spark plug must be securely tightened. An improperly tightened spark plug can become very hot and may damage the engine. Electrode Spark Plug Service WARNING! DO NOT check for spark with spark plug removed. DO NOT crank engine with spark plug removed. Check the spark plug yearly or every 100 operating hours. To ensure proper engine operation, the spark plug must be properly gapped and free of deposits. 1. Remove the spark plug boot. 2. Clean the area around the spark plug. 0.06-0.03 in. 0.60-0.80 mm Figure 6-4 Air Filter NOTE: Not all engines have air filters, such as engines used for snow throwers. Service the air filter if one is present. 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. WARNING! Never use gasoline or low flash point solvents for cleaning the air cleaner element. A fire or explosion could result. 12 Section 6 - Maintenance