Duramaxx 85729 Owner's Manual page 25

MAINTENANCE
SHARPENING THE BLADE (Fig. 14)
For best mowing performance, the mower blade must be kept sharp. A dull blade does not
cut grass evenly and over-loads the motor. Under normal circumstances, sharpening the
blade twice during the mowing season is usually sufficient. However, if your lawn has sandy
soil, more frequent sharpenings may be required.
■ Following the instructions in the Replacing the Cutting Blade section, remove the mower
blade. DO NOT attempt to sharpen the blade while it is attached to the mower.
■ Using a fine-tooth file or stone, sharpen cutting edges on both ends of the blade, removing
equal amounts of material from both ends.
WARNING:
damaged, replace immediately with a new blade. Failure to replace a bent or damaged
blade could cause an accident resulting in possible serious injury.
When removing, inspect the blade carefully. If blade is bent or
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Fig. 14