Stainless steel gear pump in the course of its prone to the following problems: 1, the pump internal parts wear Oil pump internal parts wear will cause internal leakage. Among them, the leakage area between the floating bushing and the gear end face is large, which is the main part of the internal leakage. This part of leakage accounted for 50% of the total internal leakage of about 70%. The wear and tear of the lost circulation gear pump volumetric efficiency decreased, pump output power is much lower than the input power. The loss of all the heat into the heat, it will cause the pump overheating. If the combination of flat compression, due to work floating sleeve will be a small amount of exercise caused by wear and tear, resulting in slow or can not enhance the farm tools, such a floating sleeve must be replaced or repaired. 2, pump casing wear and tear Mainly floating sleeve hole wear (gear shaft and sleeve of the normal gap is 0.09 ~ 0.175mm, the maximum shall not exceed 0.20mm). Gear work by the role of pressure oil, the gear tip close to the pump housing, wear low pressure chamber part of the pump. Another kind of wear is the circumferential wear of the working face in the shell. The wear is mainly caused by the net oil added, so the oil without impurities must be added. 3, oil seal wear, plastic seal aging Unloading the rubber seal aging deterioration, loss of elasticity, the high-pressure oil chamber and the low-pressure oil chamber lost seal isolation, will produce high-pressure oil chamber pressure to the low-pressure oil chamber, known as "leakage", which reduces the pump Work pressure and flow. CB46 gear pump its normal working pressure of 100 ~ 110kg / cm2, the normal oil volume is 46L / min, the standard unloading sheet rubber seal is 57 × 43. Since the tight seal is PG25 × 42 × 10 of the skeleton oil seal, its damage or long-term failure, the air from the seal and the journal of the gap between the shaft or from the inlet plate and the oil pump housing junction is sucked into the pump, The return pipe into the tank, a large number of bubbles in the tank. Will cause the tank of oil to reduce the engine oil tank in the phenomenon of increased oil, so that agricultural tools to enhance slow or can not be improved. You must replace the oil seal to eliminate this fault. 4, the oil pump insufficient or no oil pressure phenomenon: work equipment to enhance slow, when lifting trembling or can not be improved; tank or tubing bubbles; enhance the hydraulic system issued a "jack, jack" sound; tractor just started work Device to enhance the work of a period of time when the oil temperature is increased slowly or can not be improved; light load can be improved, heavy load can not be improved. cause of issue: (1) hydraulic tank oil is too low; (2) did not use hydraulic oil by season; (3) into the pipeline was a serious blockage of dirt; (4) oil pump gear oil seal damage, the air into the hydraulic system; (5) oil pump inlet and outlet joints or bent joints "O" ring damage, bending joints or bolts into the nut is not tight, the air into the hydraulic system; (6) pump leakage, sealing ring aging; (7) end face of the pump or the main, driven gear shaft end wear or scratches, the end surface of the two bushing unevenness; (8) internal pump assembly errors caused by internal leakage; (9) "left-handed" installed "right-handed" pump, causing damage to the oil seal; (10) The hydraulic oil is dirty. Method of exclusion: (1) According to the season to add or replace the required grade of oil to the provisions of the oil surface. Take out the foreign matter in the tubing and tighten the bolt or nut at the joint. (2) Replace aged or damaged skeleton oil seal or "O" shaped sealing rubber ring; (3) Replace the worn gear oil pump or oil pump sleeve, grind the surface flat on the flat plate when the wear is light. Its unevenness allow error of 0.03mm; the end of the upper sleeve lower than the plane of the pump body (normal value less than 2.5 ~ 2.6mm), such as ultra-poor should be in the next shaft sleeve plus 0.1 ~ 0.2mm copper to compensate, when installed Should be set in the rear sleeve on the loading; (4) unloading film and seal ring must be installed in the oil chamber, the two bushing in order to maintain balance. Unloading film sealing ring should have a preload 0.5mm; (5) The guide wire elastic force should be able to reverse the upper and lower sleeves in the direction of rotation of the driven gear at a slight angle, so that the processing plane of the two bushings of the driven gear and the driven gear closely fit; (6) The unloading trough must be installed on one side of the low pressure chamber to eliminate the harmful dead volume when the gear mesh; (7) pressed into the tight oil seal, the surface should be coated with a layer of lubricating oil, but also pay attention to the oil-resistant edge toward the front cover, can not be installed anti; (8) "right-handed" pump can not be installed in the "left-handed" machine, otherwise it will damage the oil seal; (9) Before installing the pump cover, pour a small amount of oil into the pump housing and rotate the gear by hand; (10) Before installing the oil pump cover, do not tighten the bolts, check the gap between the pump cover and the pump body, is between 0.3 ~ 0.6mm, if the clearance is too small, replace the large seal and the pressure relief parts. After the hydraulic oil pump is installed, it should be flexible and free from jamming phenomenon. Stainless steel gear pump for conveying non-lubricity, corrosive, high sanitary conditions do not contain solid particles, fibers and other substances of general viscosity and high viscosity of the fluid. Medium temperature -20-80 ℃, viscosity 5-5000cst. For machinery, petroleum, chemicals, food, medicine, metallurgy, printing and dyeing, brewing, cosmetics, beverages and other industries. The power transmission gear and the fluid delivery gear are located in different pump chambers, which are designed and manufactured according to their respective functions so that the pump is more reliable. FXB in FXA stainless steel gear pump based on the pump, an increase of support to improve the working pressure, and designed to flange connection. The pump has a mechanical seal and packing seal in two forms. More Keyword Search: Gear Pumps