routine maintenance
Lubricating oil management: After the initial 250 hours of operation, the lubricating oil in the drive box needs to be replaced, and it should be replaced every 2500 hours or 6 months thereafter. Recommend using Mobilgear630 or XP220 lubricating oil, and switch to XP68 when the ambient temperature is below -5 ℃. When replacing, it is necessary to drain the old oil through the oil drain hole and filter the new oil with an 80 mesh filter to ensure that the oil level is at 1/2 to 2/3 of the oil window.
Leakage inspection: Check the motor installation flange, stroke adjustment knob, and pump head detection port for leaks every week. If the leakage process material at the detection port indicates that the diaphragm has ruptured; If lubricating oil leaks, the oil seal needs to be replaced.
Operation status monitoring: Observe pump body vibration, noise, and outlet pressure stability during operation. When pressure fluctuations are severe, pulse dampers need to be installed in the outlet pipeline; Install a back pressure valve when the pressure is below 3 bar to prevent siphoning.
regular maintenance
Key component inspection: Check the status of the one-way valve and diaphragm every 6 months, with a focus on observing the sealing of the valve ball and the integrity of the diaphragm surface. If the one-way valve is found to be stuck or the diaphragm has cracks or bulges, it should be replaced immediately.
Pipeline system maintenance: It is recommended to use self filling installation, with the suction end lower than the liquid level of the storage tank, and the maximum suction stroke not exceeding 4 meters of water column. If suction lifting installation is necessary, a foot valve should be installed at the suction pipe mouth, and filters, shut-off valves, and flexible joints should be installed in the pipeline for regular cleaning and maintenance.
Replacement of vulnerable parts
Diaphragm replacement: After marking the inlet and outlet positions, remove the pump head and rotate the hydraulic end counterclockwise to disengage from the drive shaft. When installing a new diaphragm, rotate the back plate clockwise to the mechanical stop position to ensure that the leakage discharge hole is located at the bottom of the pump body. After reassembly, adjust the stroke to 100%, rotate the motor fan blades to extend the diaphragm, and finally tighten the pump head screws to a torque of 45 in lb.
Maintenance of one-way valve: If the valve ball is worn and causes sealing failure, the valve component and O-ring need to be replaced. It is recommended to clean the valve components every 3 months and install a Y-shaped filter in the suction pipeline to reduce the entry of impurities.