Goulds Pumps 4550 - IOM - Manual (Page 21)

OPERATION
PREPARATION FOR OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . 17
Motor Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Motor Bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Rotation Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Pump Bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Piping the Pump. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Coupling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Check For Free Turning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Priming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Start-Up Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Starting the Pump. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Operational Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Operating with Surge Conditions In Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Freezing Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Shutdown Practice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
PREPARATION FOR OPERATION
MOTOR ASSEMBLY
When the motor is furnished by the customer, the motor
coupling half must be installed. Place motor on motor
support, start the mounting bolts into the motor, and
securely tighten the motor mounting bolts.
MOTOR BEARINGS
Check and follow motor manufacturer's lubrication
instructions.
ROTATION CHECK
Before coupling sleeve is connected, the motor should be
wired and the direction of rotation checked. The motor
should be rotating in a clockwise (CW) direction when
looking down on top of the motor.
s
! WARNING
Serious damage could occur if pump is operated in
the wrong direction.
After the proper motor rotation direction is established,
loosen the motor coupling half and install the coupling
sleeve. Adjust the motor coupling half and tighten. Rotate
the coupling to insure no binding occurs and install the
coupling guard. Proper alignment of the pump and motor
is of extreme importance for trouble free mechanical
operation. Check the coupling alignment by laying a
straight-edge across both coupling hubs at four points, 90
degrees apart.
PIPING THE PUMP
The pump discharge pipe is connected to the process
piping above the mounting plate. The piping should be as
direct as possible with a minimum number of fittings. It is
recommended that a check valve be installed in the pump
discharge line as close as possible to where the discharge
pipe comes through the mounting plate. This will prevent
backflow from the discharge line upon pump shutdown
and reverse rotation of the pump shaft, which could cause
serious pump damage. This is particularly critical when
the pump is on level control operation with frequent
start/stop cycles.
NOTE: It is also highly recommended for long
pump life that properly anchored bellows type
expansion joints be installed at the discharge flange
connection. See Figure 1 in Disassembly Section
for typical installations.
4550 IOM 5/08
17
4