If your walk-behind lawnmower’s blade is dull or damaged, then you will need to remove it for replacement or sharpening. Blade removal requires removing and loosening the bolt holding the blade onto the engine shaft of the mower. A lawnmower blade can be tough to remove if the bolt is tight or suspended by rust. Typically, you can break loose the bolt. You’ll want to empty your gas tank and then place on work gloves to ensure security, however.
Shut off the engine, wait for it to cool and use in the event the machine is gas-powered, a siphon pump to suck the gas from the fuel tank. Until it is out of gas or operate the mower and await the motor. Remove from the spark plug so that it can not contact the plug, and secure it from the way with a bit of tape.
Put on gloves to protect your hands. Tilt the machine on its side so the side of the engine with the air cleaner strikes. Push block or a wedge between among the mower home and those blade tips to stop the blade once you loosen the bolt from turning counterclockwise.
Apply force to the wrench, and Set a wrench socket of the suitable size onto this bolt fastening the blade to the holder’s head handle in the counterclockwise direction to loosen the bolt. The bolt might have a 1/2-inch, 5/8-inch or 3/4-inch mind, depending on mower version. Spray it with penetrating oil if you can’t turn the bolt, wait for 10 to 15 minutes and attempt to loosen it. Mark the bottom side of the blade, unscrew the bolt that is loosened and pull on off the blade the holder for sharpening or replacement.
Reinstall the replacement or sharpened blade by obeying the elimination steps in order, except you tighten the bolt by turning it clockwise to secure the blade to the knife holder. The wood wedge Has to Be placed to stop the blade from turning clockwise