Arc gear pump troubleshooting First, do not drain oil or reduce emissions: 1, the direction of rotation reversed. Remedy: Correct the direction. 2, the valve is closed. Remedy: Open the valve. 3, oil pipe is not immersed in the oil. Remedy: Check the suction pipe, immersed in the oil surface. 4, inhalation height is too high than the rated value. Remedy: Measurement of suction pressure, increase oil absorption surface. 5, the filter screen area is too small. Remedy: Replace the filter, increase the filter area. 6, suction pipe leak. Remedy: Check the joints, the best seal material to be sealed. 7, safety valve stuck or poor adhesion. Remedy: Open the safety valve cleaning, grinding with fine grinding paste to be sealed. 8, the liquid temperature is low and the viscosity increases. Remedy: Preheat the fluid, if it is impossible to preheat, then reduce the discharge pressure, or reduce oil discharge. Second, no pressure or pressure rise is not high: 1, pressure gauge switch is not open. Remedy: Open the pressure gauge switch. 2, the pressure relief valve low. Remedy: Readjust the safety valve pressure. 3, branch pipe valve open. Remedy: Close the branch pipe valve. 4, the oil temperature is too high, low viscosity, small tube resistance. Remedy: Reduce oil temperature. 5, pipeline leaks. Remedy: Check the suction side of the pipeline. Third, the mechanical seal leakage: 1, the shaft seal has not been adjusted. Remedy: Readjustment 2, "O" ring damage. Remedy: Replace the "O" ring 3, the mechanical seal stationary ring and moving ring damage or burr scratches and other defects. Remedy: Replace the ring or re-grinding 4, spring relaxation. Replace the spring. Fourth, abnormal noise and vibration: 1, the assembly is not appropriate. Remedy: Maintenance should be carried out. 2, pump shaft and motor shaft is not the heart, has been bent. Remedy: readjustment. 3, suction pipe or filter plugging. Remedy: Clear plumbing and filter plug 4, the suction pipe diameter is too small too long, too much resistance to breathe. Remedy: readjustment. 5, the oil resistance is too large. Remedy: Check the drain pipe and the valve is plugged 6, leak. Remedy: check. 7, loose fasteners. Remedy: Check tighten. 8, the gear and bearing seat side wear or bite death. Remedy: Remove trim or update.
