Main points of use and maintenance of chain saw
The chain saw is a two-stroke power, and attention should be paid to the power and cutting tools during use to ensure the normal use of the machine: The engine is a two-stroke engine, and the fuel is a mixture of gasoline and engine oil. The ratio of the mixed oil is: high-quality two Special oil for stroke: gasoline = 1:50 (normal oil: gasoline = 1:25). For gasoline, use No. 93 or higher, use two-stroke motor oil, and the symbol is 2T. High-quality special oil must be used. Four-stroke motor oil is strictly prohibited. It is recommended that the new machine be equipped with 1:40 (common oil 1:20) in the first 30 hours, and 1:50 (common oil 1:25) in normal proportion after 30 hours. Never exceed 1:50 (common oil 1: 25), otherwise the concentration is too thin will cause the machine to pull the cylinder. Please distribute the oil strictly according to the oil distribution pot attached to the machine. The mixed oil is best to be used now. It is strictly forbidden to use the mixed oil for a long time; before the machine works, first run at low speed for a few minutes, see the lubricating saw chain oil, into an oil line, and then work. When the machine is working, the throttle is used at high speed. After working a tank of oil, you should rest for 10 minutes, clean the loose gasket of the machine after each work to ensure heat dissipation; remove the spark plug every 25 hours of use, use a wire brush to remove the dust on the electrode, adjust the electrode gap to 0.6 -0.7mm is better; every 25 hours of air filter to remove dust, dust should be more frequent. The foam filter element is cleaned with gasoline or washing liquid and clean water, squeezed to dry, then soaked in engine oil, and then squeezed out of excess engine oil to install. If 'DON NOT OIL' is printed, no oil is needed; every 50 hours of use of the muffler, remove the muffler and clean the carbon deposits on the exhaust port and muffler outlet. The fuel filter (suction head) removes impurities every 25 hours. When using the new part of the cutter, pay attention to the tightness of the saw chain to drive the saw chain to rotate. Use a hand-held saw chain with the guide teeth parallel to the guide plate. After a few minutes of use, pay attention to tighten the saw chain again. Before safe operation, no people or animals are allowed to walk within 20 meters. Be sure to check the grass for debris such as angle iron, stones, etc., and remove the debris on the grass. During storage, the body must be cleaned, the mixed fuel should be released, and the fuel in the carburetor should be burned off. Remove the spark plug, add 1-2ml of two-stroke oil to the cylinder, pull the starter 2-3 times, and install the spark plug. Troubleshooting 1. If the oil saw is turned off, the work is not so strong, and the heating machine is overheated, it is generally a problem with the filter. Therefore, before working, the filter needs to be inspected. The clean and qualified filter should be observed through the sunlight and should be thorough and bright, otherwise it is unqualified. When the filter of the chain saw is not clean enough, it should be washed and dried with hot soapy water. A clean filter can ensure the normal use of the chain saw. 2. When the saw teeth of the chain saw become unsharp, a special file can be used to rest the cutting teeth of the saw chain to ensure the sharpness of the saw teeth. At this time, it should be noted that when using a file, it should be set in the direction of the cutting tooth, and it should not be reversed. At the same time, the angle between the file and the chain saw chain should not be too large, it is preferably 30 degrees. 3. Before using the chain saw, the chain saw chain oil should be added. The advantage of this is that it can provide lubrication for the chain saw, reduce the frictional heat between the chain saw chain and the chain saw guide plate, and protect the guide plate. The chain saw chain can also be protected from premature scrapping. 4. After the chain saw is used, the chain saw must also be maintained so that the work efficiency can be ensured when the chain saw is used next time. The first is to remove impurities in the oil inlet hole and guide plate groove of the root of the chain saw to ensure the smoothness of the oil inlet hole. Secondly, the debris should also be cleared in the head of the guide, and a few drops of oil should be added.