7.For Sharpening: File the top side of the blade to maintain its original cutting angle (Fig. 27A) and inner cutting edge radius (Fig. 27B). The blade will remain balanced if you remove the same amount of material from both cutting edges.
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8.Check the balance of the blade by placing the center hole of the blade over a nail or screwdriver shank clamped horizontally in a vise (Fig. 28). If either end of the blade rotates downward, file that end (not the cutting edge). The blade is properly balanced when neither end drops.
G0221
Figure 28
9.
WARNING
POTENTIAL HAZARD
♦Operating the lawn mower without the accelerator in place can cause the blade to flex, bend, or break.
WHAT CAN HAPPEN
♦Thrown objects from a broken blade can result in serious injury or death to the operator or bystanders.
HOW TO AVOID THE HAZARD
♦Do not operate the lawn mower without the accelerator.
10.Return the lawn mower to its upright position.
11.Connect the wire to the spark plug.
5.7Cleaning under the belt cover
1.Stop the engine and wait for all moving parts to stop.
2.Disconnect the wire from the spark plug (Fig 12 & 14).
3.Remove the bolts that secure the belt cover tot eh lawn mower housing (Fig. 29).
Belt Cover
G0223
Figure 29
4.Lift off the cover and brush out all the debris around the belt area.
5.Install the belt cover.
-27 -