Nova-Tech LMI Series AA-B-C-E-J-P Metering Pumps - Manual (Page 42)

42
PROBLEM POSSIBLE CAUSE
Leakage at tubing 1. Worn tubing ends.
2. Loose or cracked fitting.
3. Worn seal rings.
4. Solution attacking Liquid Handling
Assembly material.
Low Output or Failure 1. Pump’s maximum pressure rating
to Pump Against is exceeded by injection pressure.
Pressure
2. Worn Seal Rings.
3. Ruptured Liquifram™.
4. Incorrect stroke length.
5. Tubing run on discharge may be too
long.
6. Clogged Foot Valve strainer.
Failure to Run 1. Pump not turned on or plugged in.
2. EPU failure.
3. Pulser failure.
Excessive Pump Output 1. Syphoning. (Pumping downhill without
a multi-function valve).
2. Little or no pressure at injection point.
3. Excessive strokes per minute.
Troubleshooting
(continued)