BLACKMER X3E - Broken Shaft; Mechanical Seal Leakage; Gear Reducer Troubleshooting; Noise and Vibration

101-B00 Page 14/16
PUMP TROUBLESHOOTING
Broken Shaft
1. Foreign objects entering the pump.
2. Viscosity too high for the pump speed
- EC Rotor & Shaft required for fluid viscosities over 20,000 SSU.
3. Relief valve not opening.
4. Hydraulic hammer - pressure spikes.
5. Pump/driver misalignment.
6. Excessively worn vanes or vane slots.
7. Settled or solidified material in the pump at start-up.
Mechanical Seal
Leakage
1. O-rings not compatible with the liquids pumped.
2. O-rings nicked, cut or twisted
3. Shaft at seal area damaged, worn or dirty.
4. Ball bearings overgreased.
5. Excessive cavitation.
6. Mechanical seal faces cracked, scratched, pitted or dirty.
GEAR REDUCER TROUBLESHOOTING
NOTICE:
Maintenance shall be performed by qualified technicians only,
following the appropriate procedures and warnings as presented in this manual.
Symptom Probable Cause
Noise and Vibration
1. Worn or damaged bearings. Replace as required.
2. Inadequate lubrication or incorrect lubricant (see “Gear Reducer Lubrication”).
3. Impurities in the lubricant, such as abrasive particles.
4. Excessive overloading. Check horsepower requirements.
5. Worn or damaged gear teeth.
6. Misalignment of pump or motor. Refer to “Gear Reducer Alignment” section of this manual, and
Blackmer GX model Dimensions 101-105 – 101-108 for maximum variation of shaft alignment.