The deterioration of the diesel engine cooling system will directly affect the normal operation of the diesel engine. The deterioration of the technical condition is mainly manifested in the fact that the scale in the cooling system causes the volume to become smaller and the circulation resistance of the water increases. At the same time, the heat conductivity of the scale deteriorates, so that the heat dissipation effect decreases, the temperature of the engine is high, and the formation of scale is accelerated. In addition, oxidation of the engine oil is likely to occur, and carbon deposits such as piston rings, cylinder walls, valves, etc. are generated, causing increased wear. Therefore, the following points must be noted when using the cooling system:
(1) Use soft water such as snow water and rainwater as cooling water as much as possible. River water, spring water, and well water are all hard water. They contain many kinds of minerals and precipitate out when the water temperature rises. It is easy to form scale in the cooling system, so it cannot be used directly. If you really want to use this kind of water, it should be boiled, precipitated, and used for surface water. In the absence of water, use clean, contaminated soft water.
(2) Maintain a suitable surface, that is, the upper water room shall not be less than 8mm below the inlet of the inlet pipe.
(3) Master the correct method of adding water and water. When the diesel engine overheats and lacks water, it is not possible to add cold water immediately, and the load should be unloaded. After the temperature of the water drops, it is slowly added in a trickle under the operating state. In the event of a water cut during the operation of a diesel engine, water must not be added immediately to avoid the risk of stress, cracks, or seizing accidents due to uneven cooling and heating of parts. At this time, after the diesel engine is shut down, add water before the standby temperature drops to the natural temperature. In cold weather, water should not be drained when the water temperature is very high, so as to prevent the body from being damaged due to too large temperature difference. After the water temperature drops to 40°C, the water should be released. The water tank lid should be opened to turn the crankshaft so that the water in the water pump can be completely exhausted. In order to avoid cracking radiators, cylinder heads, cylinders and other parts.
(4) Maintain the normal temperature of the diesel engine. After starting the diesel engine, warm up to above 60 °C to start working (water temperature at least above 40 °C before the tractor can start empty line). After working normally, the water temperature should be kept in the range of 80-90°C, and the maximum temperature should not exceed 98°C.
(5) Check the belt tension. With a force of 29.4 to 49N in the middle of the belt, the amount of belt sinking 10-12mm is appropriate. If it is too tight or too loose, loosen the generator bracket fastening bolts and adjust the position by moving the generator pulley.
(6) Inspect the leakage of the water pump. Observe the leakage of the drain hole under the water pump cover. The water leakage should not exceed 6 drops within 3 min. If there is too much water, the water seal should be replaced.
(7) Pump shaft bearings should be lubricated regularly. When the diesel engine is operating for 50 h, the pump shaft bearing should be filled with butter.
(8) The scale of the cooling system should be cleaned when the engine is operated for about 1000 hours.
Adult Care Diaper
We could supply Adult Diaper with three kinds, it includes adult diaper with sticker, straight inner diaper and Calabash insert diaper. The features are: 1)Top sheet with Non woven ,make you feel very comfortable.
2)PE tape allows easy use and refastening as many times as necessary
3)Printing PE film Back sheet.
4)Leak guard can better advoid leaking.
5)Imported Pulp and SAP can absorbs fluid instantly
6)OEM available
We have three kinds of adult diaper:
1) diaper with sticker
2) straight inner diaper
3) Calabash diaper
3.Payment & Samples:
Payment: T/T 30% in advance, 70% upon the receipt of BL copy.
Delivery Date: within 30 days.
Delivery Place: Xiamen port,China
Samples: Free,customer pays the postage.
4.Company Information:
we are a leading company in hygiene industry,our main line is baby diaper,adult diaper,our products have
been sold to many countries and received high popularity worldwide,we do business on the base of mutual benefit.
5.Certificates and advantages:
1) OEM from 1998
2) Certificate: ISO9001
3) Imported fluff pulp and SAP
4) 100% quality guarantee
Product show:
Adult Diaper
Adult Diaper,Adult Disposable Diaper,Adult Diaper Calabash Shape,Adult Insert Pad
Tianjin Jiao rou Sanitary product company , http://www.tjsanitary.com