Check the balance of the blade once more before tightening it into position. Ensure that the writing is facing toward the deck and that the star on the mandrel is perfectly aligned with the centre hole on the mower blade. The blade will have “this way up” embossed onto it. If installing a new blade, you need to make sure that the cutting edge of the blade is facing the direction of rotation. Never sharpen your blades to a knifepoint and try to allow for a 1mm edge. If you decide to sharpen the blades, start at the heavier end and just do a small amount at a time while paying attention to sharpening evenly across the face, until the blade is balanced. If there are signs of damage, cracks or dents on the blade, replace it. Now you have removed your blade, inspect it for any damage. Depending on the type of lawn mower that you have, there may be one or several heat treated blade bolts to undo, which may or may not have special washers attached to them. Wearing safety gloves, begin to loosen the blade bolt by turning it counter-clockwise.
Next, you want to secure the blade by placing a block of wood between the mower deck and the blade itself. Store the fuel safely away from where you are working in a clearly marked, sealed container intended for storing fuel. This helps to prevent any unwanted fuel spills and makes the entire task a quick and easy one.
Next, it’s recommended to drain any fuel that you have in the tank and close off the fuel supply tap to the engine. Instead, firmly grip the lead plug where it joins the spark plug, twist it side to side to ensure it moves freely, then pull straight backwards. To prevent damaging the spark plug lead, be careful not to pull on the lead itself. How to change your lawn mower blades Step 1 - Disconnect powerīegin by removing the spark plug cable from the spark plug to make sure that no power is delivered to the motor during the process.
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