Husqvarna 522HD60S Owner Manual - Page 12
To examine the spark plug, To clean the air filter, To apply oil to the air filter, Technical data
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2. Make sure that the cooling system is not dirty or blocked. 2. Remove the foam filter (B) and the felt filter (C) from the filter frame. A To examine the spark plug CAUTION: Always use the recommended spark plug type. Incorrect spark plug type can cause damage to the product. • Examine the spark plug if the engine is low on power, is not easy to start or does not operate correctly at idle speed. • To decrease the risk of unwanted material on the spark plug electrodes, obey these instructions: a) Make sure that the idle speed is correctly adjusted. b) Make sure that the fuel mixture is correct. c) Make sure that the air filter is clean. • If the spark plug is dirty, clean it and make sure that the electrode gap is correct, refer to Technical data on page 14. C B 3. Replace the felt filter (C). 4. Clean the foam filter (B) with warm soap water. Note: An air filter that is used for a long time can not be fully cleaned. Replace the air filter regularly and always replace a defective air filter. 5. Make sure that the foam filter (B) is dry. 6. Apply air filter oil to the foam filter (B). Refer to To apply oil to the air filter on page 12 7. Clean the inner surface of the air filter cover (A). Use compressed air or a brush. To apply oil to the air filter CAUTION: Always use Husqvarna special air-filter oil. Do not use other types of oil. • Replace the spark plug if it is necessary. To clean the air filter Clean the air filter regularly from dirt and dust. This prevents carburetor malfunctions, starting problems, loss of engine power, wear to engine parts and more fuel consumption than usual. 1. Remove the air filter cover (A). WARNING: Put on protective gloves. The air-filter oil can cause skin irritation. 1. Put the air filter in a plastic bag. 2. Put the oil in the plastic bag. 3. Rub the plastic bag to supply the oil equally across the air filter. 4. Push the unwanted oil out of the air filter while in the plastic bag. 12 904 - 003 - 19.03.2019