The length of life of the internal combustion engine and whether the internal combustion engine needs to be overhauled depends on the degree of wear of the cylinder. Therefore, taking measures to reduce the wear of the cylinder is a major means of prolonging the service life of the internal combustion engine. The relevant measures are briefly described below. 1. Operation and maintenance (1) Before starting the cold internal combustion engine, shake the handle or use other methods to shake the machine a few times so that the inner surface of the cylinder is lubricated and then started. (2) Warm up the internal combustion engine to 35-45°C before starting in winter and use hot water if conditions allow. (3) After the internal combustion engine starts, it should be turned slowly for a short period of time. When the oil temperature reaches 55-60°C, the water temperature reaches 45-50°C and the load works again. (4) When the internal combustion engine is working with a load, the rotational speed should be uniform and should not be operated under overload conditions. The temperature at work should be kept within the specified range and not be too high. (5) Find out that the fault should be eliminated in a timely manner to avoid the large losses caused by minor accidents. (6) Clean the air cleaner, fuel filter, and oil filter regularly. (7) Clean the coke on the top of the piston, the valve, and the valve cover periodically. (8) According to different seasons, choose different viscosity lubricating oils. Replace the oil in the oil pan regularly. 2. Repair and assembly (1) When repairing cylinder or crankshaft linings, make sure that the cylinder and crankshaft curves are perpendicular to each other, so as to avoid the piston leaning sideways and causing the cylinder to wear unilaterally. (2) When connecting rods are found to be bent and twisted, they must be straightened in time to avoid unilateral wear of the cylinder and abnormal wear of the cylinder center. (3) crankshaft bending should be corrected. When grinding the journal, it is necessary to ensure that the axes of the main neck and the connecting rod journal are parallel to each other. (4) When assembling the piston pin, pay attention to check the perpendicularity between the piston pin axis and the piston skirt so as to avoid the consequences of bending like the connecting rod. (5) When reaming small copper sleeves and scraping connecting rod linings, avoid misalignment of the axis and result in bent or twisted rods. (6) The optional fitting and assembly of the piston rings shall meet the requirements, including the elasticity, leakiness, hardness, flatness of the piston rings, backlash, side clearance, and end clearance of the piston rings. (7) The time, frequency, and method of commutating the internal combustion engine should be appropriate.
Low Pesticide Goji Berry, also called EU standard Goji Berry. Ningxia goji berry enjoys a great fame around the global due to its high quality standard; meanwhile, it is the only protected product of geographical identity in China, goji berry has a great popularity describes as "goji berry of the world is in China, goji berry of China is in Ningxia and Ningxia's goji berry is the best".
1.Type Genus: Multi-branched deciduous shrub of Solanaceae Lycium
2.Another name: wolfberry, red berry, red pendant, blood berry, eye-brighten berry, Tzi-fruit, hoof berry, milk berry, immortality grass, sky-essence grass, wolfberry
3.Biology Character: illumination preferable, saline-alkali tolerance, fertilizer tolerance, drought-resistant, water stain should be sustained.
4.Medicinal Parts: goji berry/ goji berry leaves, goji berry roots. 
Low Pesticide Goji Berry
Low Pesticide Goji Berry,Low Pesticide Goji,Low Pesticide Residue Wolfberry,Low Pesticide Dried Goji Berry
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