12
7. Adjust the discharge valve as needed while checking
piping for leaks.
8. Check mechanical operation of the pump and motor.
Shut Down
1. Gradually close the discharge valve and turn off the
power to the motor.
2. Lock out power to the pump driver.
Priming
Prior to starting a centrifugal pump, it is imperative that
you prime the pump by flooding the suction piping and
casing with fluid. Priming will occur when you open the
suction isolation valve and the packing sealing liquid
valve.
Start Up
1. Rotate the pump by hand; making sure that the
rotating element is spinning freely.
2. Be sure the suction valve is open.
3. Partially close the discharge valve.
4. Unlock power to the pump driver.
5. Slowly open the discharge valve as soon as the motor
reaches operating speed.
6. Check stuffing box leakage and adjust, if necessary, to
achieve leakage of 40-65 drops per minute.
Do not operate the pump without liquid in the casing.
CAUTION
Do not operate the pump with the discharge valve
closed for an extended period of time.
CAUTION
Do not operate the pump without the proper guard.
See ANSI/ASME B15.1-1996.
! WARNING !
