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NOTE: If additional cleaning of the bag is required, see Cleaning the Vacuum Bag in Maintenance. 4. Zip close and reinstall the vacuum bag. Fig. 15 WARNING: Avoid situations that could catch the vacuum bag on fire. Do not operate near an open flame. Do not vacuum warm ash from fireplaces, barbecue pits, brush piles, etc. Do not vacuum discarded cigars or cigarettes unless the cinders are completely cool. MAINTENANCE AND REPAIR INSTRUCTIONS MAINTENANCE AND REPAIR INSTRUCTIONS NOTE: Some maintenance procedures may require special tools or skills. If you are unsure about these procedures take your unit to an authorized service dealer. MAINTENANCE SCHEDULE These required maintenance procedures should be performed at the frequency stated in the table. They should also be included as part of any seasonal tune-up. WARNING: To prevent serious personal injury, never do maintenance or repairs with unit running. Always do maintenance and repairs on a cool unit. Disconnect spark plug wire to ensure the unit will not start. FREQUENCY MAINTENANCE REQUIRED REFER TO: Before Starting Engine Fill fuel tank with correct oil and fuel mixture. Page 11 Every 10 Hours Clean and re-oil air filter. Page 15 Every 50 Hours Check spark plug condition and gap. Page 17 AIR FILTER MAINTENANCE NOTE: Clean and re-oil the air filter after every 10 hours of operation. Your unit's air filter is one of the most important areas to maintain. If it is not maintained, you will VOID the warranty. Before cleaning, make sure the unit is turned off. 1. Wipe down the air filter cover and surrounding area. This will help prevent any debris entering the carburetor when the cover is removed. 2. Remove the screws on each side of the carburetor/air filter cover assembly. Remove the carburetor/air filter cover (Fig. 16). Air Filter Fig. 17 Air Filter Cover Screws Fig. 18 Fig. 16 3. Remove the air filter (Fig. 17). 4. Wash the filter in detergent and water (Fig. 18). Rinse the filter thoroughly and allow it to dry. 5. Apply enough clean SAE 30 oil to lightly coat the filter (Fig. 19). Fig. 19 MAINTENANCE AND REPAIR INSTRUCTIONS 6. Squeeze the filter to spread the oil (Fig. 20). 7. Reinstall the filter (Fig. 17, Pg 15) 8. Reinstall the carburetor/air filter cover and screws (Fig. 16, Pg 15). Do not over tighten. NOTE: Operating the unit without the air filter or carburetor/air filter cover assembled will VOID the warranty. Fig. 20 CARBURETOR ADJUSTMENT The idle speed of the engine is adjustable , the air filter cover must be removed to do so. Only make adjustments while the unit is assembled as a blower. NOTE: Careless adjustments can seriously damage your unit. An authorized service dealer should make carburetor adjustments. Check Fuel Mixture Old and/or improperly mixed fuel is usually the reason for the unit not running properly. Drain and refill the tank with fresh, properly mixed fuel prior to making any adjustments. Refer to Oil and Fuel Information Pg. 11. Clean Air Filter The condition of the air filter is important to the operation of the unit. A dirty air filter will restrict air flow and change the air/fuel mixture. This is often mistaken for an out of adjustment carburetor. Check the condition of the air filter before adjusting the idle speed screw. Refer to Air Filter Maintenance Pg. 14. Adjust Idle Speed Screw WARNING: The unit will be running during idle speed adjustments. Wear protective clothing and observe all safety instructions to prevent serious personal injury. Also, Do not set unit on any surface except a clean, hard area during these adjustments. Debris such as gravel, sand, dust, grass, etc. could be picked up by the air intake and thrown out by the discharge opening, damaging unit, property, or causing serious injury to bystanders or operator. If after checking the fuel mixture and cleaning the air filter the engine still will not idle, adjust the idle speed screw as follows. 1. Start the engine and let it run with the throttle control in fast for a minute to warm up. See Starting/Stopping Instructions, Pg. 12. 2. Shut the unit off and remove the carburetor/air filter cover. See steps 1 and 2 of Air Filter Maintenance Pg. 14 . 3. Restart the unit, move the throttle control to the idle position. If the engine stops, insert a small phillips or flat blade screwdriver into the idle speed screw (Fig. 21). Turn the idle speed screw in, clockwise, 1/8 of a turn at a time (as needed) until the engine idles smoothly. 4. If the engine seems to idle fast, turn the idle speed screw counterclockwise 1/8 of a turn at a time (as needed), to reduce idle speed. 5. Before reinstalling the carburetor/air filter cover, turn the idle speed screw in, clockwise, 1/8 of a turn. This will compensate for the speed reduction when the carburetor/air filter cover is back in place. 6. Reinstall the filter (Fig. 17, Pg. 15), carburetor/air filter cover and screws (Fig. 16, pg. 15). Checking the fuel mixture, cleaning the air filter, and adjusting the idle speed scr...