1900 Series Horizontal Splitcase Pumps
Instruction and Repair Manual
15
11/12/18
PRIMING:
The priming procedure is different for positive and negative suction head systems and the following procedures should
be followed:
A. Positive suction head.
1. Open the vent on the highest point on the pump casing.
2. Open all suction valves.
3. Allow the liquid to flow from the vent hole until all air bubbles are vented, and then close the vent.
4. The pump is now primed.
B. Negative suction head.
1. Install the priming system on the vent on the highest point of the pump casing.
2. Close the discharge valve.
3. Open the suction valve.
4. Start the priming system.
5. Run the priming system until a continuous stream flows through the suction line, then close the valve to
the vent.
6. The pump is now primed.
STARTING THE PUMP:
A. After the pump is primed, and with the discharge valve closed and the suction valve open, start the driver according
to the driver manufacturer’s instructions.
B. Open the discharge valve slowly to prevent water hammer.
C. Immediately after the pump has been started, check bearing temperature, stuffing box lubrication and operation,
and pump noise level. Continue to monitor these values for the first several hours of operation.
NORMAL OPERATION:
Monitor the following during running cycles:
A. Unit vibration or noise.
B. Driver lubrication.
C. Pump lubrication.
D. Packing box leakage.