No Discharge - Pump TS

Probable Cause	Possible Solutions
1. Pump not primed	The submerged type pump requires no special priming procedure. However, the liquid level in the tank must be maintained at the minimum level indicated on the approved dimension print for the pump. Raise the acid level in the tank.
2. Insufficient pump speed	Check voltage and current of each motor phase
3. Incorrect pump rotation	Check for correct rotation. The correct direction of rotation of all pumps is shown on the upper part of the ball bearing housing or driver support base.
4. Pump coupling not connected	Ensure motor have been properly aligned and then couple motor to pump.
5. Obstruction at pump suction	Suction inlet cover not removed, impeller clogged or suction basket strainer blocked. Clean pump suction of debris.
6. Obstruction in discharge piping	Check for closed valves or debris in piping.
7. Discharge point too high	The static head of the system is greater than the total discharge head for which the pump was designed. A larger impeller and motor may be required.
8. Impeller diameter too small	The static head of the system is greater than the total discharge head for which the pump was designed. A larger impeller and motor may be required.

Any difficulties in operation which are not covered by these general instructions should be taken up with the Chas S. Lewis & Co., Inc.

Contact:    Chas S. Lewis & Co., Inc.
                8625 Grant Road
                St. Louis, Missouri
                USA   63123

Telephone: (314) 843 4437
Fax: (314) 843 7964


Sulphuric Acid on the Web^TM	Technical Manual	DKL Engineering, Inc.