Diaphragm pump flow adjustment is based on the rotation adjustment mechanism to adjust the piston stroke to adjust. The principle is: rotation adjustment mechanism handwheel (you can see the position of the dial on the change), through the adjustable shaft and slide shaft axial transformation, the movement through the slide shaft on the chute into the eccentric radial Displacement, through the connecting rod to promote the piston, due to changes in piston stroke, so as to achieve the purpose of flow control. Diaphragm pump maintenance and other types of pumps are different, the main points are as follows: 1, the pump valve inspection should pay attention to whether the seal ring aging deformation, spring elasticity is seriously reduced, valve port and valve core wear and tear, corrosion and other defects, 2, the diaphragm replacement, the disassembly pump head should be hoisted in advance to prevent damage to the fall; 3, the adjustment mechanism disassembly to calibrate the stroke length position ( Stroke length of 5mm), remove the scale table seat, slide the scale ring calibration position, the measured stroke length should be exactly the same scale; 4, the piston removal, the use of special tools to take the filler ring from its groove Take out, be careful not to damage the ring groove; 5, worm gear to be checked, the teeth should be intact, there should be no cracks or broken teeth, the installation to check the engagement conditions.
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