The introduction of string trimmer 

The string trimmer is used to remove weeds, stems and leaves in the raw materials. The commonly used methods are winnowing and flotation. The winnowing method is a method that uses the difference in the suspension speed of sundries and food ingredients in the air, and removes impurities by wind. The flotation method uses the different buoyancy of the weeds, stems and leaves in the water and the food raw materials to remove the light and floating debris floating in the water.

Precautions for use string trimmer 

Before gardeners use the lawn weeder, it is best to check the oil level to see if it is between the upper and lower marks of the oil dipstick. The oil should be changed after the new machine is used for 5 hours, and the oil should be changed again after 10 hours of use, and then the oil should be changed regularly according to the requirements of the manual. The oil change should be done when the engine is in a warm state. You’d better not add too much oil, otherwise there will be black smoke, insufficient power (excessive carbon deposits in the cylinder, small spark plug gap), engine overheating and so on. The engine oil should not be too little, otherwise, the engine gear will be noisy, the piston ring will be worn and damaged at an accelerated rate, and even the phenomenon of laval will cause serious damage to the engine.

Maintenance of string trimmer and the radiator

Maintenance of the air filter before and after each use, you ought to check whether the air filter is dirty and wash it frequently. If it is too dirty, the engine will be difficult to start, black smoke, and insufficient power. If the filter element is paper, you can remove the filter element and dust off the dust attached to it. If the filter element is spongy, after cleaning it with gasoline, drop some lubricating oil on the filter element to keep the filter element moist. Conducive to the adsorption of dust.
The main function of the radiator is noise reduction and heat dissipation. When the lawnweeder is working, the flying grass clippings will adhere to the radiator, which will affect its heat dissipation function. In severe cases, it will cause the cylinder to be pulled and damage the engine. Therefore, gardeners should carefully clean the radiator after each use of the lawnweeder.

Before the use of string trimmer

Before the lawn weeder cuts the grass, you must first remove the debris in the cutting area to avoid damage to the cutting head and blade. To start the engine in a cold state, it's a good choice to close the damper first, and then open the damper at the appropriate time after starting. If the turf area is too large, the continuous working time of the lawn weeder should not exceed 4 hours.

After the use of string trimmer

After the lawn weeder is used, it should be thoroughly cleaned, and all screws should be checked for tightness, whether the blades are defective, and the high-pressure cap should be repaired. According to the service life of the lawnweeder. You should strengthen the inspection of vulnerable parts or replace.