During the operation of the water
pumps, it is inevitable that failure and damage will occur, so that it cannot operate normally. The following summarizes the common troubleshooting and maintenance methods of the water pumps.
1. Unable to start
First, check the power supply situation: whether the joint connection is firm; whether the switch is in tight contact; whether the fuse is blown, etc. If there is an open circuit, poor contact, blown fuse, etc., the cause should be identified and repaired in time.
Next, check whether it is the mechanical failure of the
pump itself. Common reasons are: the packing is too tight or the impeller and the pump body are blocked by debris; the pump shaft and bearing are rusted; the pump shaft is severely bent, etc.
Remedy: loosen the packing, clear the water diversion groove; disassemble the
pump body to remove sundries and rust; remove the pump shaft for correction or replace it with a new one.
2. The water
pump is hot
Reasons: bearing damage; too small clearance of rolling bearing or bracket cover; bent pump shaft or misalignment of two shafts; too tight tape; lack of oil or poor oil quality; clogging of the balance hole on the impeller, the impeller is out of balance, and the direction of the impeller is increased. thrust on one side.
Remedy: replace the bearing; remove the back cover and add a gasket between the bracket and the bearing seat; investigate the pump shaft or adjust the concentricity of the two shafts; properly adjust the tightness of the tape; add clean butter, and the butter accounts for the bearing about 60% of the inner void.
