SECTION 10: SERVICE & ADJUSTMENTS
Blade Care
Periodically inspect the blade adapter for cracks, especially if you strike a foreign object. Replace when necessary.
WARNING: When removing the cutting blade for sharpening or replacement, protect hands by using heavy gloves or a rag to grasp the cutting blade.
•Disconnect spark plug wire from spark plug.
•Turn mower on its side making sure that the air filter and the carburetor are up.
To Remove Blade
•Remove the bolt and blade bell support which hold the blade and adapter to the engine crankshaft. See Figure 11A.
•Remove the blade and adapter from the crankshaft.
To Replace Blade:
•Before reinstalling the blade and the blade adapter to the unit, lubricate the engine crankshaft and the inner surface of the blade adapter with light oil.
•Install the blade adapter on the crankshaft with the “star” away from the engine. See Figure 11A.
A | Blade Adapter | Crankshaft |
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| Hex Bolt | Blade Bell |
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B
1.Insert screw driver through hole
2.Blade should be parallel to ground
Screw
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| Ground | |||
FIGURE 11
•Place the new blade with the side marked bottom (or with part number) facing away from the adapter.
•Place the bell support next. Make sure to align the tabs in the holes of the blade with the hole in the bell support.
•Insert the hex bolt through the blade assembly. Figure 11A shows the correct order of assembly.
•Use block of wood to hold blade again while you tighten the bolt clockwise. Follow the recommended torque for the bolt which is
IMPORTANT: The bolt, used to secure the blade to the engine, is specially
WARNING: To ensure safe operation of your unit, all nuts and bolts must be checked periodically for correct tightness.
To Sharpen Blade:
•The blade can be sharpened with a file or on a grinding wheel. Do not attempt to sharpen while blade is on the mower.
•Follow the original angle of grind as a guide. Make sure that each cutting edge receives an equal amount of grinding to prevent an unbalanced blade.
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