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Hersteller: McCulloch Dateigröße: 6.94 mb Dateiname: Unterrichtssprache:

(Figure 21). 1 Figure 21 1. Control bar 2. Adjuster link 3. Cable positions Inspecting the Auger Blades Before each session, inspect the auger blades for wear. When a auger blade edge has worn down have an Authorized Service Dealer replace the auger blades and the scraper (Figure 22). Figure 22 1. Auger blades 2. Scraper 12 Changing the Engine Oil Run the engine a few minutes before changing the oil to warm it. Warm oil flows better and carries more contaminants. A The engine oil will be hot. Avoid skin contact with the used engine oil. 1. Move snowthrower to a level surface. 2. Run snowthrower until all fuel has been depleted. 3. Remove ignition key. Figure 23 1. Oil drain plug 4. Place an oil drain pan under the oil drain plug, remove the oil drain plug, and tip the snowthrower backward and drain the used oil in the oil drain pan (Figure 23). 5. After draining the used oil, return the snowthrower to the operating position. 6. Install the oil drain plug and torque to 145-150 in-lbs (17 N-m). NOTE: Dipstick location may vary depending on engine type. 1. Oil fill cap/dipstick 7. Clean around the oil filler cap/dipstick (Figure 24). 8. Unscrew the oil fill cap/dipstick and remove it (Figure 24). 9. With the snowthrower in the operating position, carefully pour oil into the oil fill hole until "Full" on the fill cap/dipstick line (Figure 26). Max fill: 18 oz. (0.5 l), type: automotive detergent oil with an API service classification of SJ, SL, or higher. Use Figure 25 below to select the best oil viscosity for the outdoor temperature range expected: SAE VISCOSITY GRADES a 10W30 A r ^ 5W30 -20 0 30 32 40 60 80 *C -30_-20_-10_0_10_20_30 TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE Figure 25 Figure 26 NOTE: 10W30 synthetic oil is acceptable for use in cold temperatures. 10. Screw in the oil fill cap/dipstick and hand tighten it securely. 11. Wipe up any spilled oil. 12. Dispose of the used oil properly at a local recycling center. 13 Servicing the Spark Plug Use a NGK BPR6ES, Champion RN9YC, or BOSCH WR6DC spark plug or equivalent. 1. Stop the engine and wait for all moving parts to stop. 2. Rotate the discharge chute so that it faces forward. 3. Remove the discharge chute, the discharge chute handle by removing the three carriage bolts and flange nuts (Figure 27). Figure 27 1. Discharge chute 2. Carriage bolts 3. Flange nuts 4. Remove the six screws that secure the shroud assembly (Figure 28). 1. Screw 3. Oil fill cap 2. Shroud assembly 5. Remove the oil fill cap. 6. Remove the shroud assembly (Figure 28). 7. Install the oil fill cap. 8. Disconnect the spark plug wire from the spark plug (Figure 29). 9. Clean around the spark plug. 10. Remove the spark plug from the cylinder head. 1. Spark plug wire IMPORTANT: Replace a cracked, fouled, or dirty spark plug. Do not clean the electrodes because grit entering the cylinder can damage the engine. 11. Set the gap on the plug to 0.030 inch (0.76 mm) (Figure 30). Figure 30 12. Install the spark plug and torque it to 20-22 ft-lb (27-30 N-m). 13. Connect the spark plug wire to the spark plug (Figure 29). 14. Remove the oil fill cap. 15. Install the shroud with the screws removed in step 4 (Figure 28). NOTE: Ensure that the shroud assembly fits together in the side grooves. 16. Install the oil fill cap. 17. Install the discharge chute, and the discharge chute handle onto the snowthrower using the hardware removed in step 3 (Figure 27). 14 Replacing the Drive Belt If drive belt becomes worn, oil-soaked, excessively cracked, frayed, or otherwise damaged, replace the belt. 1. Remove the drive side cover by removing the six screws as shown in (Figure 31). 1 Figure 31 Drive side cover 2. Screw 3. Drive pulley 4. Idler arm 5. Idler pulley 6. Engine pulley 7. Drive belt 2. Press down on front of idler arm to release the belt tension (Figure 31). 3. Remove the drive belt from the drive pulley (Figure 31). 4. Install the new drive belt, routing it as shown in (Figure 32). NOTE: Route the new drive belt first around the engine pulley, then the idler pulley, and finally around the drive pulley while pressing down on the front of the idler arm. (Figure 32). 5. Install the drive side cover with the screws removed in step 1. 3 Figure 32 1. 2. 3. 4. Idler arm Idler pulley Engine pulley Drive pulley NOTE: Ensure that the drive belt is properly adjusted and operating; refer to Checking the Control Cable and Adjusting the Control Cable in the Maintenance section of this manual. 5 6 15 Storage Storing the Snowthrower Immediately prepare your snow thrower for storage at the end of the season or if the unit will not be used for 30 days or more. SNOW THROWER When snow thrower is to be stored for a period of time, clean it thoroughly, remove all dirt, grease, leaves, etc. Store in a clean, dry area. 1. Clean entire snow thrower after each use. ...

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