First, the overhaul of the pump 1. Pump impeller maintenance Pump impeller and the water pump shaft for the static fit or transition with the match gap is -0.048 ~ +0.013mm. If the clearance between the impeller hole and the pump shaft exceeds 0.04mm, the hole shall be bored and embedded. The bushing material may be gray iron or steel No. 20. If the crack of the impeller of the pump is small, it may be soldered or repaired; if the crack is large or cracked, it shall be replaced. 2. The repair of the water pump shell Cracks of the water pump shell can be filled with epoxy resin, and V-shaped grooves can also be used for welding repair. Due to the negative pressure suction force of the inlet, sometimes the impeller of the pump will move forward, and the impeller contact plate will friction with the pump casing. After the abrasion, the cooling water will produce back leakage. At this point, epoxy adhesive can be used to bond the multilayer adhesive tape to the worn area to eliminate back leakage. 3. Maintenance of the water pump shaft The water pump shaft is made of low carbon steel, medium carbon steel or alloy steel. After the journal is worn, it can be surfacing. It can also be repaired with iron plating or chrome plating, and it can be ground to a standard size. (1) Replacement of bushings and water seals. The front bushing of the water pump shaft is subject to less vibration of the impeller, better lubrication conditions, and less wear; while the rear bush (on the end of the pump impeller) is affected by the impeller and is larger and wears. When the clearance between the bushing wear and the water pump shaft exceeds 0.30 mm, the bushing should be replaced. Note that the front and rear bushings should be replaced at the same time to ensure the concentricity of the front and rear bushings. When the sealing surface of the water seal is uneven, there are pits or grooves, it can be grinded and polished or trimmed with a reamer; water leakage still occurs after the watertight nut is tightened, water seal packing can be replaced; water seal damage should be replaced when water fails Seal assembly. (2) Post-installation test of the pump. After the pump is installed, there should be no seizure when the pump shaft is turned by hand. Push the impeller of the pump to the front end, and the end face of the impeller must not be rubbed against the pump casing. Block the inlet of the pump casing, add water to the impeller working chamber, and turn the pump shaft. At this time, there should be no water leakage. Otherwise, the cause should be checked and eliminated. Second, the fan overhaul the fan placed on the inspection platform, check the deviation of the plane formed by the side of each blade on the same side of each blade, should not exceed 1.5 ~ 2.0mm, otherwise the cold deformation of the deformed blade and blade holder should be checked. . Install the fan assembly on the inspection shaft, use two triangular irons to set up both ends of the inspection shaft, use chalk as a mark on any blade, and then turn the fan. If the mark can be stopped at any position, it means the fan balance. . The static unbalanced force of the fan, such as Dongfanghong-75 tractor, should be no more than 15g.cm; Tigris-55 tractor should not exceed 50g.cm. If the static balance requirement cannot be met, the metal at the tail of the heavier blade can be ground, or drilled on the blade holder and the pulley, or a thin steel sheet can be welded on the non-working surface of the lighter blade. There are cracks in the blades that can be repaired or glued. After welding, they should be machined flush with other surfaces. If the blade is loose on the blade holder, rivets can be riveted or repaired by welding. After the fan blade breaks, the fan will run unbalanced and vibration and noise will occur. In this case, the broken blade should be replaced. If there are no spare parts for the operation, one blade on the opposite side of the broken blade can be removed for emergency, and the vehicle should be repaired after it is received. When installing the fan blades, care should be taken not to install them (the air should be allowed to flow from the radiator to the engine body). Third, the thermostat maintenance good thermostat should start at 68 ~ 72 °C, to 80 ~ 85 °C when the main valve fully open. If the valve fails to open (opening temperature is too high) or stuck (can not open or can not close the group), the engine water temperature will not be automatically adjusted, there will be a phenomenon that the water temperature is too high or the water temperature rises too slowly, reducing the engine's power Sex and economy.
Kidney beans are commonly used in chili con carne and are an integral part of the cuisine in northern regions of India, where the beans are known as rajma and are used in a dish of the same name. Red kidney beans are used in New Orleans and much of southern Louisiana for the classic Monday Creole dish of red beans and rice. The smaller, darker red beans are also used, particularly in Louisiana families with a recent Caribbean heritage. Small kidney beans used in La Rioja, Spain, are called caparrones.
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