There are numerous designs and sizes of lawn mower blades. Some are specifically designed for particular mowers, and include the part number stamped on them that can be referenced in the parts list in the mower’s manual.
For instance, a lift blade produces a strong suction which efficiently wills clippings upwards, so they can be bagged. Additionally, it provides optimal air flow to prevent the clogging of areas with thick grass.
Size
To select the correct lawnmowers replacement, it is essential to know the overall length and hole pattern of the blade. Additionally, the shear pin locating holes as well as their distance from the blade boss must be identified. These measurements help narrow search results as they match the design of a specific mower blade and are suited to prevent damaging the mower’s components and creating vibrations in the mower.
Standard blades (also called 2-in-1 blades or lift blades) are commonly used on lawnmowers equipped with side discharge and lawnmowers without mulching or bagging. The back edge of blades has a slight upward incline that results in a constant cutting and suction motion.
High lift blades are made to be employed for side discharge mowing. They have an upward-facing turn on the back. This kind of blade requires more power from the engine for optimal performance. It can be slightly more costly in fuel costs, but is perfect for thicker grasses which are hard to cut using standard blades.
Material
The blades of wholesome lawn mower blades sharpener mowers are usually made from a durable type of steel. It could also be constructed of iron or other metals. Steel is a very popular material for mower blades because it provides toughness and durability. The use of heat to harden the steel. This is known as tempering and improves its durability, toughness as well as resistance to corrosion.
It is better to make use of high carbon steel when mowing than low carbon steel because it is more durable. It can withstand tree stumps, rocks and other debris that could strike the blade, but not break it.
To maintain a lawnmower blade, it is best to keep it sharpened and to use it often. It is also essential to ensure that the blade is balanced. You can do this by placing a small nail in the board and then using a file on it to adjust the nail until it touches the center of the blade.
Sharpness
The sharpness of your blades will depend on many factors including how much you use it and the size of your lawn. Sharpening is required more often when large lawns have plenty of pebbles tree roots, rocks and weeds. A dull blade wears out more quickly if you are using it regularly.
Sharp cutting edges are necessary for a clean and pleasing cut. This can be accomplished by using a blade sharpening drill bit it functions similarly to the bench grinder, but is much smaller and less expensive.
The blade should be balanced on a regular basis, especially after having been sharpened. Sharpening can cause the blade to be unbalanced because it takes more metal off one side than the other. To determine the balance, hang the blade on the bolt hole and observe if it looks like it is level. If one end tilts higher than the other, then the blade will need to be sanded more in order to make it level.
Maintenance
When you are sharpening the mower blade, make use of a tool that works similar to a drill bit, but with a specially-designed stone to fit around the edge of the blade leaving the least amount of room for mistakes. This tool is faster and precise than hand filing. Check the balance of the blade by placing it over a bolt through the hole. If one side is lower than the other, it needs to be filed further to ensure that it is balanced.
Before you take off a blade ensure that the engine is off and pull the spark plug wire in order to prevent the engine from accidentally getting started while you work on the blade. Block the blade to hold it steady while you loosen the bolt that fastens it using an ratchet set or wrench. When reinstalling the blade, make sure you know the side that is marked downward to ensure that it is mounted in the correct location. Spray WD-40, or similar lubricant, onto the mounting bolt prior to tightening.