| malfunction | the reason | Method of exclusion |
| 1. Difficult to start | 1 liquid is not filled pump cavity. Frictional resistance larger: 2. The packing gland is too tight and the friction torque between the shaft and packing is too large. | 1. Pipe clamp to move the shaft pump pump spindle 3 ~ 6 turn: 2. Adjust the packing gland. |
| 2 start after no liquid | There is a lot of air inhaled: 2 motor steering is wrong: 3 fluid viscosity is too large. | 1. Check? Song? Oxime è° what owes 裉 å¸ suction pipe leaks 2. Transfer any two-phase motor into the line: 3 dilute liquid feed. |
| 3. The pump has a lot of vibration or noise | 1 motor and pump shaft is not the heart: 2. Pump inhaled air or liquid mixed with a lot of air - | 1. Re-adjust the coaxiality: 2. Check? Stanford Ho? Try to rule out the inhalation of air. |
| 4. During operation, the traffic dropped significantly | 1. Bushing wear. Clearance increases: 2. Speed ​​reduced: 3. Universal shaft section or shaft damage Transmission failure: 4. Suction pipe into the liquid depth is not enough. There is air into the pump ^ | 1. Replace the bushing. If necessary? Q Screw: 2.Liaoshan said spring steal br br /> 3. Downtime maintenance. More Q axis 朕 shaft section or around the axis: 4. 缧 ∥ 敫??? Once immersed into the depth of exclusion inhaled liquid air. |
| 5. Motor overload | 1. Head over the pump stroke too much: 2 liquid viscosity is too large: 3. The voltage is too low. | 1. Minimize pipe head loss or replace high-lift pump. 2. Dilution of liquid material: 3. Check cough - raise the voltage to the specified value. |
| 6. A large number of shaft seal packing leakage | 1. Gland is too loose: 2. Packing wear: 3. Inverse import and export position. | 1. Adjust the gland: 2 replacement packing: 3. The middle flange port for the inhalation. |
2. The packing gland is too tight and the friction torque between the shaft and packing is too large. 1. Pipe clamp to move the shaft pump pump spindle 3 ~ 6 turn:
2. Adjust the packing gland. 2. No liquid after start up 1. There is a lot of air inhaled:
2 motor steering is wrong: 3 fluid viscosity is too large. 1. Check? Song? Oxime è° what owes 裉 å¸ suction pipe leaks
2. Transfer any two-phase motor into the line:
3 dilute liquid feed. 3. Pump has greater vibration or noise 1. Motor and pump shaft is not the heart:
2. The pump inhaled air or liquid mixed with a lot of air -1. Re-adjust the coaxiality:
2. Check? Stanford Ho? Try to rule out the inhalation of air. 4. During operation, the flow rate dropped significantly 1. Bushing wear. Clearance increase:
2. Speed ​​reduced:
3. Universal shaft section or shaft damage Transmission failure:
4. Inhalation pipe into the liquid depth is not enough. There is air into the pump ^ 1. Change the bushing. When necessary? Q screw:
2.Liaoshan said spring steal br br /> 3. Downtime maintenance. More Q axis 朕 shaft section or around the axis:
4. 缧 ∥ 敫??? Once immersed into the depth.Remove the air inhaled liquid .5 motor overloading 1.Head over the pump stroke too much:
2 liquid viscosity is too large:
3. The voltage is too low. 1. Minimize the head loss of the pipe or replace the high-lift pump.
2. Dilution of liquid material:
3. Check cough - raise the voltage to the specified value. 6. A large number of shaft seal packing leakage 1. Gland is too loose:
2. Packing wear:
3. Inverse import and export position. 1. Adjust the gland:
2 replacement packing:
3. The middle flange port for the inhalation.
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