| Problem |
CAUSE |
Solution |
| Low pressure |
Nozzle damage |
Nozzle replacement |
| Loose belts |
Tighten or replace belt |
| Inlet pipe pieces leak |
Use PTFE liquid or raw material band to fasten device and hoses |
| Gauge failed or inaccurate |
Check with the new gauge, replace the damaged gauge |
| Relief valve clogged or improperly adjusted |
Clean/ regulate relief valve, replace the damaged bearing, valve and O-ring |
| Water filter clogged or improper size |
Clean the filter, choose suitable size of filter and regularly check |
| Particles in the pump fluid medium |
Install suitable filter system |
| Water pipeline leak |
Replace the water pipeline |
| Sufficient supply of liquid medium |
Pressurize Inlet and install C.A.T. |
| Serious cavitation |
Exanimate water input situation |
| Seals aging |
Replace with new seal repair kit, strengthen maintenance |
| Inlet / outlet valve damaged, impurities or too dirty |
Check filling pressure situation. If lower pressure, please re-pressurize or replace it |
| Pulse damper |
Pulse damper failure |
|
| Inlet/outlet valve clogged |
Clean inlet/outlet valve and components, replace if necessary |
| Leak |
|
|
| The Bottom of pump head leak |
Hi or low pressure seals abrasion |
Replace seal repair kit and strengthen maintenance |
| |
Bearing O-ring abrasion |
Replace O-ring |
| Water seepage into the |
Humid air in the crankcase condensed into water |
Install protective cover , replace lubricant clear crankcase |
| |
Hi/low pressure seal abrasion |
Replace seal repair kit and strengthen maintenance |
| Abnormal sound |
|
|
| Entrance components |
Insufficient water supply |
Check fluid supply, increase pip size , pressurize or install C.A.T. |
| |
|
Check the shaft key and tighten screws |
| Bearing |
Bearing old or damaged |
Replace bearing |
| Pulley |
Crankshaft pulley loose |
Check the crankcase key and tighten screws |
| Oil spill |
|
|
| Front oil seal of crankcase |
Front oil seal of crankcase aging |
Replace front oil seal of crankcase |
| Oil seal and O-ring |
Side oil seal of crankcase or O-ring aging |
Tighten drain nut or replace O-ring |
| Drain nut |
Drain nut loose or O-ring aging |
Tighten drain nut or replace O-ring |
| Peep oil lens |
Peep oil lens loose or gasket aging |
Tighten peep oil lens or replace gasket |
| Back cover |
Back cover loose or back cover O-ring aging |
Tighten back cover screws or replace O-ring |
| Oil cap |
Oil cap loose or Crankcase over-oiled |
Tighten oil cap. Note crankcase oil level |
| Quite unstable Pump operation |
|
|
| Entrance situation |
Inlet limited or poor sealing fittings |
Choose the correct inlet pipe pieces. Check and tighten seals |
| Pump valves |
Entry / exit valve parts blocked |
Clean out impurities or replace the valve repair kit |
| Pump Seals |
High pressure or low pressure seal abrasion or leak |
Replace seal repair kit, strength maintenance |
| Seals aging |
Piston or plunger scratched |
Replace piston or plunger |
| Too high water pressure |
Decrease water pressure |
| Particles or abrasive in the fluid medium |
Install filtration system before watering into the pump and regular cleaning |
| Pump fluid medium over-pressure or high temperature |
Check fluid medium pressure and temperature |
| Pump run dry |
Do not run pump when insufficient liquid or without liquid |
| Insufficient supply of fluid medium |
Increase inlet diameter. Pressurize or install C.A.T. |
| Pump head corrosion |
Replace pump head. Check the chemical properties of the fluid medium |