1, rope edge: for tender grass that is easy to cut.
2. Square blade: mainly used for hard and fragile reeds and the like.
3. Diamond blade: It is tough for vines and small shrubs.
4. Grass cutting head: install nylon grass cutting rope, which is mainly used to cut young grass and medium-density grass in strip, slope and other terrain that the blade of the brush cutter can't reach.
5. Two-toothed blade (straight blade): cutting and pruning artificially cultivated grasslands and excessively long weeds. Don't cut shrubs with a double-toothed blade.
6. Three-tooth blade: the cutting diameter is not more than 1cm, which is used to cut and clean weeds, semi-woody herbs and sparse shrubs. Don't cut shrubs with a three-toothed blade.
7.40-tooth blade (also known as saw blade, including 40 teeth, 60 teeth, 80 teeth, etc. ): Harvest rice, wheat, hemp, beans, rape, corn, highland barley, Prunella vulgaris, Lysimachia christinae, alfalfa and other crops.
8.40-tooth alloy saw blade (also known as alloy saw blade, including 40 teeth and 60 teeth, etc.). ): Cut down shrubs, mulberry branches and tea branches, and reclaim barren hills. The cutting diameter should not exceed 6 cm.
6. Grain collector: Put the harvested crops away and tidy them up.
How to choose mower blades
Theoretically, the gear-shaped mower blade is safer, while the strip-shaped mower blade is sharper and covers a larger area. The durability of mower blade is related to the material of mower blade, but has little to do with the shape.
In fact, the choice of mower blades is really important. There are corresponding lawn mower blades to choose from in various occasions. Rotary blade mower Different types of rotary blade mowers can get the best pattern effect under different lawn conditions. Finally, according to the characteristics of the stadium, different mowing qualities can be obtained by properly selecting high-wing, middle-wing and low-wing rotary knives. If you need to crush grass, you can choose a powerful multi-tooth atomic mower blade, which can crush grass leaves and leaves into very fine pieces. Will not affect the appearance.
Installation method of mower blade
1. There is a big nut on the blade of the mower to fix the blade. When installing, install the blade on the disc of the mower and tighten the nut. The tightening torque of the nut is 30-40N m.
2. After completion, put the mower on a stable surface and slowly pull the rope several times to ensure that there is no oil in the cylinder before starting.
3. Remove dust and weeds from the mower blades, blade seats and inside the mower, and install the blade seats, blades and blade bolts.
4, firmly grasp the blade, ensure that the blade contact with the blade propulsion surface. Tighten the blade bolt, and the tightening torque of the bolt is 50-60N m. ..
Note: Blade bolts are special bolts and cannot be replaced by other bolts. When viewed from the bottom up, the blade rotates counterclockwise, thus ensuring that its cutting edge faces this rotation direction during installation.
How to change the mower blade
1. When replacing the mower blade, first take a positioning rod, align the small metal cover on the cutter head with the positioning hole inside, and then insert the positioning rod.
2. Under the blade, there is a big nut to fix the blade. After the cutter head of the lawn mower is fixed, the fixing screw can be screwed under the cutter head with a wrench matched with the cutter head nut.
3. When unscrewing the screw for fixing the cutter head, the metal cover under the screw can be removed.
4. After the metal cover is removed, you can see that there is a metal gasket below, and then remove this thicker metal gasket. When the above parts are removed, the blade of the mower can be removed smoothly.
5. Then put the blade that needs to be replaced on the spindle, put the parts that have just been removed back, tighten the cutter head repeatedly in the opposite order, and finally tighten the screws, so that the cutter head of the lawn mower can be replaced.