There are a variety of designs and sizes of lawn mower blades. Certain models are made specifically for specific mowers and come with an identification number engraved into the blades that are able to be referenced in the list of parts in the manual of the mower.
A high-lift blade for instance, creates a strong suction that effectively propels grass clippings to the point that they can be bagged. It also provides the best air flow to prevent the clogging of areas with thick grass.
Size
To choose the right replacement lawnmower, you must know the overall length and hole pattern of the blade. The location of the shear pin holes, and their distance from the blade boss, must also be known. These measurements can narrow down search results because they match the shape and design of a particular mower blade, preventing damage to parts of the mower and causing vibrations.
Standard blades, often called 2-in-1 or lift blades are commonly used on regular lawnmowers, as well as side discharge lawnmowers which aren’t bagging or mulching. Their back edge features a slight upturn that generates continuous suction and cutting.
High lift blades have sharp upturns on the back of the blade. They’re specifically designed for mowing side discharge. This kind of blade requires greater power from the engine in order to perform well. It may cost a little extra in fuel expenses, but it’s ideal for grasses with thicker blades that are difficult to cut with standard blades.
Material
The #1 lawn mower blades sharpeners mower’s blades are typically made of a durable type of steel. Metals like iron or other are a possibility. Steel is the most popular metal for mower blades as it offers a combination of durability and strength. The use of heat to harden the steel. The process of tempering increases the strength and durability of the material, as well as resistance to corrosion.
High carbon steel is an ideal choice for mowing as it has a higher tensile strength than steel with low carbon which makes it more resistant to being damaged. It is strong enough to stand up to tree stumps, rocks and other things that might strike the blade, but not break it.
In order to maintain the blade of a lawnmower, it is best to keep it sharp, and make sure you use it frequently. The blade should also be balanced. You can do this by putting a nail in the board and then using a file over it to move the nail so that it is in the middle of the blade.
Sharpness
Sharpness of blades depends on a variety of aspects, such as the dimension of the lawn and the frequency with which it is used. Large lawns with lots of trees, rocks pebbles, weeds, and rocks will require frequent sharpening. A regular use of a mower that is dull could also cause the blade to wear down faster.
For a neat and pleasing cut an edge that is sharp is essential. This can be achieved with a sharpening drill bit it functions similarly to the bench grinder, but is smaller and more affordable.
The blade must be balanced frequently, especially after it has been honed. Sharpening may cause the blade to become unbalanced as it removes more metal from one side than from the other. To determine the balance, hang the blade on the bolt hole, and check whether it appears like it is level. If one side is tilted higher than one, the blade needs to be filed more to get it balanced.
Maintenance
If you want to sharpen a mower’s blade, use a specialized tool that functions similar to drill bits, but with a specially-designed stone to be affixed to the edge of the blade, leaving the least amount of room for error. This tool is much more efficient and precise than hand filing. Once both sides are sharp make sure you check the balance of the blade by hanging it from an anchor through the bolt hole. If the blade is not balanced, you will need to file it more.
Before removing a blade, ensure that the engine is turned off. Then, pull the spark plug wire in order to prevent the engine from starting while you’re working on the blade. Block the blade with an object to hold it in place while you loosen its fastening bolt with a ratchet or wrench. When reinstalling the blade, be sure to note the side that is marked downward to ensure that it is placed in the correct location. Spray WD-40, or similar lubricant, on the bolt for mounting before tightening.
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