Measures to extend the useful life of the machine Heilongjiang Province is located in the alpine zone, the annual frost-free period is short, the use of agricultural machinery should pay special attention to cold, taking full account of the various unfavorable factors used in winter. In order to effectively extend the useful life of tractors, in addition to on-time maintenance, in winter operations should be "five prevention" work. Cold: the northern winter in Heilongjiang Province, the minimum temperature sometimes reaches about 40% of the water tank water should maintain a certain temperature, otherwise it will freeze the water tank. In addition, the metal in the event of brittle brittle at low temperatures, when a component such as uneven force, the local case of impact load, there will be broken. Anti-thick: refers to the size of the tank in terms of oil viscosity. In general, the viscosity of the oil than the viscosity of the oil viscosity in the cold easy to set, if still using the same viscosity of the oil, it is not easy to flow, leading to difficult to start, such as with a smaller viscosity of the oil, then increase its Liquidity, so you can improve the conditions of use. Antifreeze: is for tractor cooling system. Working temperature remained at 85.90 ~ {2 between, such as below the temperature lubrication effect is not good. Anti-crisp: Cold car starts to pay attention to the various components, water and traction work to prevent possible failure. Non-slip: Locomotive start and walk to prevent slipping. The "five defenses" mentioned above are in fact the common problems in Heilongjiang Province and should attract the attention of the crew in the reclamation area. In order to make good use of our locomotive, the following to make a specific description: 1. Assembly of the engine should be attached to the insulation device. Winter tractor work, in order to enable the engine to start working properly, first of all to maintain a certain temperature of lubricating oil, should consider the additional installation of insulation. In the battery capacity allows (reconfigurable battery) case, the production of a resistance heater, the heater can be installed around the engine, without hindering other parts of the normal work and disassembly, Hot water heating cycle system allows the surface temperature of the housing is always maintained at a constant temperature of about 15cc, so that you can effectively maintain the engine's own operating temperature, shorten the starting time. 2. Reasonable choice of oil viscosity. (1) Exhaust the diesel fuel in the diesel tank and clean the diesel tank and the diesel filter with diesel oil, and then add winter diesel oil. Refueling specifications according to the appropriate level of temperature selection. The temperature is 0 ~ 10 ℃, the use of 10 # light diesel oil; - 10 ~ -20 ℃, the use of 20 # light diesel oil; -20 ~ -35 ℃, the use of 35 # light diesel oil. If there is no corresponding grade of diesel, diesel can also be added in the right amount of anti-coagulant. (2) Release the engine oil in the engine oil pan, clean the lubrication system with a mixture of 4: 1 or 5: 1 diesel, oil, and then add HC-11 or HC-8 winter oil, and Transfer the oil filter switch to winter work position, fuel pump, governor and hydraulic tank should also be replaced with HC a 11 or HC a 8 oil. (3) release gearbox, differential and steering gear oil, with diesel after cleaning add HC a 20 winter gear oil. 3. Release the cooling water cooling system, with water, caustic soda, kerosene ratio of 10: 0.75: O.5 formulated as washing liquid cleaning cooling system. When adding no antifreeze cooling water, you must always pay attention to the reading on the engine water temperature meter, if the engine idle idling, failure or stall time longer, the cooling water temperature inside the tank will gradually decrease, such as when the water temperature drop To 50 ~ 60 ℃, the cooling water should be released, and cranked crankshaft cooling water drained. Found that when the radiator jelly, jelly should be wrapped at the cotton yarn or waste cotton and other items, and then pouring hot water, pouring hot water from the radiator at the lowest start. 4. The electrolyte in the battery is made of concentrated sulfuric acid and distilled water. Electrolyte 12582.10086.cn concentrated sulfuric acid composition, the greater the relative density (concentration), the lower the freezing point the less easy to freeze, the temperature is low, the electrolyte easy to freeze, so the case of low temperature, The outer surface of the battery, in addition to covering felt insulation, etc., but also must increase the density of the electrolyte. Electrolyte density: summer take 1. 25 ~ 1.27; take 1.28 ~ 1.30 in winter, the electrolyte level higher than the protective plate less than 10 ~ 15mn. When the density should be 1.05 diluted sulfuric acid, but not as in the summer just add distilled water. The above is to extend the service life of the machine measures.
The three-point wood drill is a variant of the twist drill, because the conventional twist drill is easy to deviate when drilling on a flat processing surface. When drilling metal, a pilot hole is usually drilled to locate the Drill Bit. But when doing woodworking, we can have a more convenient choice. The straight tip of the three-point woodworking drill is nailed into the wood like an awl to ensure that the drill will not slip.
Wood Working Bits are cutting tools used to remove material to create different kinds of holes in wood materials. In order to create holes drill bits are usually attached to a drill, which powers them to cut through the objects.
Wood working drill Machining accuracy is good, and drilling out of the hole cleanliness is good, small burr,
Wood Working Dril,Wood Drill,Cutting Tool,Metal Cutting
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