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12. On frame-mounted units, tighten foundation, pump  

and driver hold-down bolts before connecting piping 

to pump.

13. Avoid unnecessary fittings. Select sizes to keep fric-

tion losses low.

14. After completing piping, rotate unit by hand to check  

for binding. Note: A screwdriver slot or flats are pro-

vided in end of motor shaft.

1. No field alignment is necessary on close-coupled 

pumps.

2. Even though the pump-motor unit may have a factory  

alignment, in transit this alignment could be disturbed  

and must be checked prior to running.

3. Check the tightness of all hold-down bolts before  

checking the alignment.

4. If re-alignment is necessary, always move the motor.  

Shim as required.

5. Final alignment is achieved when parallel and angular  

requirements are achieved with both pump and motor  

hold down bolts tight. 

6. Parallel misalignment exists when the shafts are not  

 concentric. Place dial indicator on one hub and rotate  

 this hub 360º while taking readings on the outside  

 diameter of the other hub. Parallel alignment occurs  

 when Total Indicator Reading is .005" or less.

7. Angular misalignment exists when the shafts are not  

parallel. Place dial indicator on one hub and rotate this  

hub 360º while taking readings on the face of the 

other hub. Angular alignment is achieved when Total  

Indicator Reading is .005" or less.

1. Low static lift and short, direct suction piping is  

desired. For suction lift over 5 feet, consult pump  

performance curve for Net Positive Suction Head  

Required.

2. Suction pipe size must be at least equal to suction  

connection of pump.

3. If larger pipe is used, an eccentric pipe reducer (with  

straight side up) must be used at the pump.

4. Installation with pump below source of supply:

  4.1. Install isolation valve in piping for inspection and  

maintenance.

5. Installation with pump above source of supply:

5.1. To avoid air pockets, no part of piping should be  

higher than pump suction connection. Slope  

piping upwards from liquid source.

5.2. All joints must be airtight.

5.3. Foot valve to be used only if necessary for prim-

ing, or to hold prime on intermittent service.

5.4. Suction strainer open area must be at least triple  

the pipe area.

6. Size of inlet from liquid source, and minimum submer- 

gence over inlet, must be sufficient to prevent air  

entering pump.

1. Arrangement must include a check valve located  

between a gate valve and the pump. The gate valve is  

for regulation of capacity, or inspection of pump or  

check valve.

2. If reducer is required, place between check valve and-

pump.

1. Pumps are right-hand rotation (Clockwise when 

viewed from the driver end). Switch power on and 

off. Observe shaft rotation. On frame-mounted units, 

check rotation before coupling pump to motor.

2. Single-Phase: Refer to wiring diagram on motor if  

rotation must be changed.

3. Three-Phase: Interchange any two power supply leads  

to change rotation.

1. Before starting, pump must be primed (free of air and 

suction pipe full of liquid) and discharge valve par-

tially open.

2. Make complete check after unit is run under operating  

conditions and temperature has stabilized. Check for  

expansion of piping. Check coupling alignment.

3. Do not operate at or near zero flow. Energy imparted  

to the liquid is converted into heat. Liquid may flash 

to vapor. Rotating parts require liquid to prevent scor-

ing or seizing.

CAUTION

Hazardous Machinery

WARNING

CAUTION