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Fig.11A for Briggs engine Fig.11B for Briggs engine
Fig.11C for Cobra engine Fig.11D for Cobra engine
NOTE:
Replace the filter if frayed, torn, damaged or unable to be cleaned.
9.2 CUTTING BLADE
CAUTION:
Be sure to disconnect and ground the spark plug wire before working on the cutting blade to
prevent accidental engine starting. Protect hands by using heavy gloves or a rag to grasp the cutting
blades .Tip the mower as specified in separate engine manual. Remove the hex bolt and washer which holds
the blade and blade adapter to the engine crankshaft. Remove the blade and adapter from the crankshaft.
WARNING:
Periodically inspect the blade adapter for cracks, especially if you strike a foreign object.
Replace when necessary.
For best results your blade should be sharp. The blade may be re-sharpened by removing it and either grinding
or filing the cutting edge, keeping it as close to the original bevel as possible. It is extremely important that
each cutting edge receives an equal amount of grinding to prevent an unbalanced blade. An improper blade
balance will result in excessive vibration, causing eventual damage to the engine and mower. Be sure to
carefully balance the blade after sharpening. The blade can be tested for balance by balancing it on a round
shaft screwdriver. Remove metal from the heavy side until it balances evenly.
Before re-assembling the blade and the blade adapter to the mower, lubricate the engine crankshaft and the
inner surface of the blade adapter with light oil. Install the blade adapter on the crankshaft. Refer to figure 12.
Place the blade with the part number facing away from the adapter. Align the washer over the blade and insert
the hex bolt. Tighten the hex bolt to the torque listed below:
