Flowserve Pump Division - 27
BEARING LIFE IS SHORT
1. Internal misalignment due to piping strain or improper foundation
2. Shaft bent or damaged
3. Improper installation of bearings
4. Lubricant contaminated
5. Excessive imbalance of the rotating assembly
6. Pump being operated too far away from capacities for which it was designed
7. Pump vibrating excessively
8. Motor temperature exceeds design temperature
MECHANICAL SEAL HAS SHORT LIFE OR LEAKS EXCESSIVELY
1. Shaft bent
2. Mechanical seal improperly installed
3. Incorrect type of mechanical seal for the application
4. Excessive vibration
5. Abrasive material in seal cavity
6. Mechanical seal was run dry
7. Seals are over- or under-compressed
MOTOR OVERHEATS
1. Fluid level in cooling system is low
2. Cooling fluid is contaminated
3. A non-approved cooling fluid is being used