Certa CTLWN4AMWRA, User Manual, Page: 13 / 16

Tools and Supplies needed:
•
14 mm socket wrench (supplied with Mower)
•
Gloves or rag to protect your hands
•
Wear heavy gloves to protect your hands when holding, removing and attaching
blades.
1. Remove the safety key from it’s socket, and remove battery. If you are
charging the battery, disconnect the charger from the electrical outlet.
2. While holding the handle bars, turn the mower over on its right side to
expose the blade.
3. Place the socket wrench over the blade nut.
4. While holding the blade in place, loosen the blade nut by turning counter-
clockwise. Be careful; wear heavy gloves to hold the blade in place so the
blade does not spin and strike your hand (see above, left).
5. Remove the blade nut, plastic spacer and blade in that order (see above,
right).
6. To install a new or sharpened blade, reverse steps 1 to 5. Be sure to
replace all parts in order exactly as they were removed. Make sure the
blade is properly seated and securely tightened.
7. Turn your mower upright.
Sharpening the Blade
When the blade is dull, the cut ends of the grass will be ragged and may turn
brown soon after mowing. A dull blade also causes the battery to discharge
more quickly. When this occurs, sharpen the blade.
You must remove the blade from the mower to sharpen it.
Tools & supplies needed:
•
Fine-toothed file or sharpening stone
•
Gloves.
•
Safety glasses
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