Motor Collar Ring Setting - Xylem Bell & Gossett e-80SCXL Series Instruction Manual

6 Maintenance
11. Reinstall the flush line.
12. Reinstall the coupling guard.

6.3.2 Motor collar ring setting

CAUTION:
The motor collar ring must be set on the motor shaft at the correct position and set screws
torqued to the proper value.
The motor collar ring must be set on the motor shaft at a specified distance for both TC
motors and IEC motors to insure the pump impeller is in the proper position during pump
operation. The distance to set the collar (DC) is measured from the motor mounting surface
to the surface of the collar ring closest to the motor.
Figure 10: Motor collar ring setting for TC motor
Figure 11: Motor collar ring setting for IEC motor
1. Motor mounting surface
2. Collar ring
3. DC
The collar ring is held in position on the motor shaft with set screws. These set screws must
be tightened to the proper torque to ensure that the collar does not slip as a result of pump
rotor weight and pump hydraulic thrust.
Place a small amount of Loctite 222MS on each setscrew before installing them into the
motor collar.
Table 2: Collar setting difference for IEC motors
This table describes the collar setting distance, set screw size, and set screw torque for TC
and IEC motors.
24
1
2
1
2
Frame Motor frame size
200L
IEC 225S/M
250M
3
3
Distance collar
(DC)
Set screw size
in (mm)
3.780 (96)
4.764 (121) M8X6
4.764 (121)
Series e-80SCXL INSTRUCTION MANUAL
Set screw size
in-lbs
165