Harvester maintenance should pay attention to what the problem
1. Replace oil should clean the oil. Some agricultural operators lack maintenance knowledge and do not clean the oil passage when replacing the oil. It should be noted that after the lubricant is used, many mechanical impurities remain in the oil. Even if the lubricant is exhausted, impurities still remain in the oil pan and the oil passage. . If you do not clean it and you are eager to put it into use, it is very easy to cause accidents such as burning tiles and holding shafts. 2. The oil is replenished but the quality inspection is ignored. The long-term use of the harvester oil contains a large amount of oxides and metal shavings, resulting in reduced lubricating performance and increased wear of parts. Therefore, the engine should be regularly changed according to the specified cycle. 3. Add water to remove scale. Although part of the harvester's driver has a sense of water, he never cleans the scale in the tank. As a result, the cooling water is sufficient, but the cooling effect is poor, causing multiple failures. 4. The carbon deposit in the exhaust pipe should be removed. This will result in too thick carbon deposits, reduced cross-sectional area of ​​the exhaust gas, exhaust gas exhausts, insufficient fresh air, and poor combustion. 5. Install the piston without applying open flame heating. The uneven thickness of each part of the piston, the thermal expansion and contraction of different degrees, easily lead to deformation. If the piston is heated to a certain high temperature with an open flame, the metal structure will be damaged and the wear resistance will be reduced after the natural cooling, and its service life will be greatly shortened. 6. Do not apply butter when installing the cylinder head gasket. Many agricultural machine operators are accustomed to applying butter when installing cylinder head gaskets. They believe that this can increase the airtightness of cylinders. They do not know that this is counter-productive. Because of the loss of butter after high temperatures, gaps between cylinder pads, cylinder heads and the plane of the body, high-temperature and high-pressure gas can easily be impacted from here, destroying cylinder mats and causing air leakage.
Basic Information Edit voice
Chinese name: 3-indolemethanol
Indole-3-methanol; 3-hydroxymethoxy-indole
English name: Indole-3-METHANOL
CAS Number: 700-06-1 [1]
Physical and chemical properties edit speech
Appearance and properties: white to off-white crystal
Density: 1.272g /cm3
Melting point: 96-99 °C(lit.)
Boiling point: 360.6ºC at 760 mmHg
Flash: DHS 171.9 C
Storage condition: 2-8ºC
Edit voice for security message
Customs code: 2933990090
WGK Germany: 3
Danger class code: R36/38
Safety Description: S26-S36
RTECS number: NL9483000
Dangerous goods mark: Xi
Purpose Edit voice
Health care products and pharmaceutical intermediates.
Molecular structure data edit speech
1. Molar refractive index: 44.97
2. Molar volume (m3/mol) : 115.6
3, equal tension specific volume (90.2k) : 324.2
4. Surface tension (DYNE /cm) : 61.7
5. Polarization: 17.83
Indole-3-methanol,formula C9H9NO,white to off-white crystal. Shaanxi Kepler Biotech Co.,Ltd , https://www.keplerherb.com