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User manual McCulloch, model 89303

Manafacture: McCulloch
File size: 1.71 mb
File name: 6f992414-2a29-479f-b59d-77b463263482.pdf

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Y Clean any debris or dirt from the cutting attachment. ........................................................................................................................................ Cooling ...... Air intake Cooling ...... Y Check for loose or missing screws or Y Make sure nuts, bolts, and screws components. Make sure the cutter (except carburetor idle speed adjusting attachment is securely fastened. screws) are tight. Y Check the entire unit for leaking fuel or grease. Maintenance (continued) 10-Hour maintenance (more frequently in dusty conditions) 1. Remove the air filter cover by loosening the cover screw(s) and lifting. 2. Remove and inspect the pre-filter. If the pre-filter is torn or otherwise damaged, replace it with a new one. 3. Clean the pre-filter with soap and water. Let dry before reinstalling. 4. Inspect the air filter element. If the element is damaged or distorted, replace it with a new one. 5. Tap filter gently on a hard surface to dislodge debris from element or use compressed air from the inside to blow debris out and away from the air filter element. 6. Install the air filter element, pre-filter and cover in the reverse order of removal. 10/15-Hour maintenance Remove and clean or replace the spark plug. Y Clean the spark plug. Adjust electrode gap according to the values listed in the ”Specifications” section. If the spark plug must be replaced, use only the type recommended in ”Specifications” or equivalent resistor type spark plug of the correct heat range. CAUTION! Before removing the spark plug, clean the area around the plug to prevent dirt and debris from getting into the engine’s internal parts. Remove and inspect spark plug 0,6 - 0.7 mm Clean the spark plug and check the gap at the electrode. .............................................. Filter element ................ Loosen fasteners .................................................................. IMPORTANT! Direct the air stream at the inside face of the filter only! CAUTION! Never operate the unit if the air cleaner assembly is damaged or missing! 50-hour maintenance Every 50 hours of operation; more frequently in dusty conditions: Y Remove and clean the cylinder cover and clean dirt and debris from the cylinder cooling fins. Gearcase lubrication Y Remove and clean the cylinder cover and clean grass and dirt from the cylinder fins. Y Remove the cutting attachment, cutting attachment holder and gearshaft collar. Remove the filler plug from the side of the gearcase and press new grease into the gearcase until old grease is pushed out. Use only lithium- base grease such as Shindaiwa Gearcase Lubricant or equivalent. Y Lubricate mainshaft splines. Old Grease New Grease Gearshaft Collar Gearcase lubrication Maintenance (continued) 50-hour maintenance Remove and replace the fuel filter element. Y Use a hooked wire to extract the fuel filter from inside the fuel tank. Inspect the fuel filter element. If it shows signs of contamination, replace with a genuine Shindaiwa replacement fuel filter element. CAUTION! Make sure you do not pierce the fuel line with the end of the hooked wire. The line is delicate and can be damaged easily. Before reinstalling the new filter element, inspect the condition of all the fuel system components (fuel pick-up line, fuel return line, tank vent line, tank vent, fuel cap and fuel tank). If damage, splitting or deterioration is noted, the unit should be removed from service until it can be inspected or repaired by a Shindaiwatrained service technician. 139/150-Hour Maintenance ................................................................................ Hooked wire Maintenance after first 139-hours, then every 150-hours thereafter. Y Combustion chamber should be d...