The pump vibrates severely
It may be that the electric rotor is unbalanced, or the coupling is not well connected, and the bearing is worn and bent; it may also be that some of the rotating parts are loose or cracked; it may be because the pipeline support is not firm. Measures such as adjustment, repair, reinforcement, and replacement can be taken separately.
Water or air leaks in the pipeline
The nut may not be tightened tightly during installation. If the leakage is not serious, apply cement or cement slurry mixed with asphalt oil on the leaking or leaking place. Temporary repairs can be coated with wet mud or soft soap. If water leaks at the joint, the nut can be tightened by hand. Serious water leakage must be disassembled again.
Packing is overheated
Because the packing is too tight, the cooling water cannot enter the packing, or the shaft surface is damaged. Measures can be taken to loosen the packing and clean up the blockage of the sealed tube. Packing wear must be replaced with new ones. Soak in the engine oil before installation, install it circle by circle, and stagger the cuts to reduce water leakage. After the last round of packing is installed, the gland should be installed tightly, and then the tightness should be adjusted during operation.
The pump does not absorb or drain water
The reasons are mostly stuck bottom valve, blocked water filter part, high water absorption height or water leakage, or the impeller flow channel is blocked due to incorrect steering. After inspection one by one, measures such as repairing the bottom valve, removing silt, correcting the steering, and cleaning the impeller can be taken respectively.
Post time: 2021-11-30
