ITT SSH-F, SSH-C manual Alignment, Suction Piping, Discharge Piping, Rotation, Operation

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.

3.Alignment

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.

	Always recheck both
CAUTION
	alignments after making
	adjustments.

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.

4.Suction Piping

1.Low static lift and short, direct suction piping is desired. For suction lift over 15 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.

4.2.Do not use suction isolation valve to throttle pump!

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.

5.Discharge Piping

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.

6.Rotation

WARNING	DO NOT PLACE HANDS IN PUMP
	WHILE CHECKING MOTOR
	ROTATION. TO DO SO WILL CAUSE
	SEVERE PERSONAL INJURY.

Hazardous Machinery

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.

7.Operation

1.Before starting, pump must be primed (free of air and suction pipe full of liquid) and discharge valve par- tially open.

	Pumped liquid provides
CAUTION
	lubrication. If pump is run
	dry, rotating parts will seize
	and mechanical seal will be
	damaged.

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.