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56-VOLT LITHIUM-ION CORDLESS LAWN MOWER — LM2140SP/LM2140SP-FC40
SHARPING FREQUENCY
Sharpening the blade twice during a mowing season is usually sufficient under normal
circumstances. Sand causes the blade to dull quickly; if your lawn has sandy soil, more
frequent sharpening may be required.
WHEN SHARPENING THE BLADE:
◾
Make sure that the blade remains balanced.
◾
Sharpen the blade at the original cutting angle.
◾
Sharpen the cutting edges on both ends of the blade, removing an equal amount of
material from each end.
TO SHARPEN BLADE IN A VISE:
1. Remove the blade from the mower
(please see REMOVING THE BLADE.)
2. Secure the blade in a vise (Fig. 30).
3. Wear proper eye protection and
gloves and be careful not to cut
yourself.
4. Carefully file the cutting edges of
the blade with a fine tooth file or
sharpening stone, maintaining the
original cutting edge angle.
5. To check the blade balance: clamp
a nail or a screw driver with a round
shank in the horizontal position.
Position the blade so that the nail
or round shank of the screwdriver
supports the blade through its
center hole. Balance the blade
horizontally. If either end of the blade rotates downward, remove some metal from
the heavy or lower end until the blade is balanced. It is balanced when neither
end drops (Fig. 31).
6. Replace the blade on the mower and tighten it securely (please see INSTALLING
THE BLADE).
30
31
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