Trouble in Hydraulic Pump
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Now we study about "Hydraulic Pump"3) Fault :- Pump overheats.
Probable causes and Remidial action.
1. Wrong oil grade.
=> Fill oil as recommended.
2. Oil speed in system too high.
=> Install pipes of proper size.
3. Oil level too low.
=> Fill the oil up to safe level.
4. Pump rotor groove worn out.
=> Change the worn out parts.
5. Radial or axial loading too high.
=> Loading should be restricted to prescribed limit to acceptable amount, check alignment limit.
6. Initial speed rises.
=> Check max, pressure, if needed replace with larger capacity and install pipes of nominal bore.
7. Inadequate cooling.
=> Increase cooling capacity.
8. Cooling system is dirty.
=> Clean the cooling system. 9. Differential pressure too low. => Increase pressure setting of relief valve.
10. Pressure too high.
=> Reduce pressure setting.
11. Wrong type of pressure valve.
=> Replace by appropriate type of valve.
12. Wrong seal size.
=> Replace by suitable size of seals.
13. Filter dirty or too small.
=> Clean filter or replace by larger
14. Pump running speed high.
=> Reduce speed.
15. Cavitation.
=> Bleed the system.
16. Foams in oil.
=> Vent the system.
17. Venting dirty.
=> Clean the vents.
18. System contaminated.
=> Flush the system.
19. Sharp bends in suction line.
=> Eliminate bends or at least reduce them.
20. Boost pump failed.
=> Check bolt pump and repair as
required.
Now we study about "Hydraulic Pump"
3) Fault :- Pump overheats.
Probable causes and Remidial action.
=> Fill oil as recommended.
2. Oil speed in system too high.
=> Install pipes of proper size.
3. Oil level too low.
=> Fill the oil up to safe level.
4. Pump rotor groove worn out.
=> Change the worn out parts.
5. Radial or axial loading too high.
=> Loading should be restricted to prescribed limit to acceptable amount, check alignment limit.
6. Initial speed rises.
=> Check max, pressure, if needed replace with larger capacity and install pipes of nominal bore.
7. Inadequate cooling.
=> Increase cooling capacity.
8. Cooling system is dirty.
=> Clean the cooling system.
9. Differential pressure too low. => Increase pressure setting of relief valve.
10. Pressure too high.
=> Reduce pressure setting.
11. Wrong type of pressure valve.
=> Replace by appropriate type of valve.
12. Wrong seal size.
=> Replace by suitable size of seals.
13. Filter dirty or too small.
=> Clean filter or replace by larger
14. Pump running speed high.
=> Reduce speed.
15. Cavitation.
=> Bleed the system.
16. Foams in oil.
=> Vent the system.
17. Venting dirty.
=> Clean the vents.
18. System contaminated.
=> Flush the system.
19. Sharp bends in suction line.
=> Eliminate bends or at least reduce them.
20. Boost pump failed.
=> Check bolt pump and repair as
required.
10. Pressure too high.
=> Reduce pressure setting.
11. Wrong type of pressure valve.
=> Replace by appropriate type of valve.
12. Wrong seal size.
=> Replace by suitable size of seals.
13. Filter dirty or too small.
=> Clean filter or replace by larger
14. Pump running speed high.
=> Reduce speed.
15. Cavitation.
=> Bleed the system.
16. Foams in oil.
=> Vent the system.
17. Venting dirty.
=> Clean the vents.
18. System contaminated.
=> Flush the system.
19. Sharp bends in suction line.
=> Eliminate bends or at least reduce them.
20. Boost pump failed.
=> Check bolt pump and repair as
required.
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