1. Water Not Being Pumped
Possible causes:
- Pipe is not properly sealed.
- Water filter is placed too deep.
- Pump is not creating sufficient vacuum.
- Insufficient priming water.
Solutions:
- Check rubber gaskets, adjust the thickness of the seal gasket, and tighten the joint screws.
- Submerge the water filter deeper.
- Follow the pump’s manual for troubleshooting vacuum issues.
- Add sufficient priming water.
2. Insufficient Spraying Width
Possible causes:
- Pump speed does not reach the rated value.
- Incorrect spray angle.
- Piping is clogged or leaking.
Solutions:
- Increase the throttle to raise engine speed to match the pump’s rated speed.
- Adjust the spray angle.
- Clear any blockages or leaks in the system.
3. Pump Noise or Vibration
Possible causes:
- Excessive bearing clearance.
- Excessive gear clearance.
- Lack of oil in the gearbox.
Solution:
- Refer to the pump manual for specific troubleshooting procedures.
4. Ball Valve Operation Failure
Possible causes:
- Cylinder malfunction.
- Valve core damage.
Solutions:
- Check if the electrical or air circuit is loose.
- Replace the ball valve.
Specific Water Pump Troubleshooting
1. The Water Pump is Unable to Self-Prime
Possible causes:
- Pump body lacks sufficient priming liquid.
- Air leakage in the suction line.
- Pump speed is too low.
- Suction lift is too high, or the suction line is blocked.
- Excessive mechanical seal leakage.
Solutions:
- Add enough priming liquid.
- Inspect and eliminate air leakage.
- Adjust the pump speed.
- Reduce suction lift or shorten the suction line.
- Repair or replace the mechanical seal.
2. Excessive Power Consumption of the Pump Shaft
Possible causes:
- Excessive flow rate.
- Pump speed is too high.
- Pump shaft is bent or impeller is stuck.
- Flow path inside the pump is blocked.
Solutions:
- Reduce the flow rate.
- Lower the pump speed as needed.
- Align or replace the pump shaft or impeller.
- Remove any blockages from the pump.
3. Excessive Noise or Vibration in the Pump
Possible causes:
- The pump base is unstable.
- Cavitation.
- Severe bearing wear.
- Flow path inside the pump is blocked.
- Debris inside the pump or inlet pipe.
- Misalignment between the pump and the power drive shafts.
Solutions:
- Reinforce the pump base.
- Adjust the working conditions to avoid cavitation.
- Replace worn bearings.
- Clear blockages.
- Remove debris from the pump and pipe.
- Adjust the alignment of the pump and the power drive shafts.
These troubleshooting methods can help ensure that the water sprinkler truck operates effectively and maintains reliable performance. Regular maintenance and prompt repairs are essential to avoid issues.
