Bell & Gossett P71397B User Manual

INSTRUCTION MANUAL

P71397

REVISION B

Series 80-SC Spacer-Coupled
Vertical In-Line Centrifugal Pump

Motor Collar Ring Setting Instructions

INSTALLER: PLEASE LEAVE THIS MANUAL FOR THE OWNER’S USE.

WARNING: EXTREME TEMPERATURE HAZARD

If pump, motor, or piping are operating at extremely
high or low temperature, guarding or insulation is required.
Failure to follow these instructions could result in serious
personal injury or death, and property damage.

WARNING: ELECTRICAL SHOCK HAZARD

Electrical connections to be made by a qualified elec­trician in accordance with all applicable codes, ordinances
and good practices. Failure to follow these instructions
could result in serious personal injury or death, and property
damage.

WARNING: UNEXPECTED STARTUP HAZARD

Disconnect and lockout power before servicing.
Failure to follow these instructions could result in serious per­sonal injury or death, and property damage.

CAUTION: The Motor Collar Ring must be set on the

motor shaft at the correct positon and set screws
torqued to the proper value. Failure to follow instructions
could result in injury or property damage.

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. This distance is shown in Fig.
1 for TC motors and Fig. 2 for IEC motors (see back).

The collar ring is held in position on the motor shaft with three
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.

The Table at the right specifies the collar setting distance, set
screw size and set screw torque for TC motors and IEC
motors.

The set screw must be held in place after being torqued to the
correct value with a small amount of Loctite 222MS thread­locker liquid or equivalent.

COUPLER ASSEMBLY

See Series 80-SC Installation, Operation & Service Instruction
Manual.

COLLAR SETTING DISTANCE

Distance Set Screw

Motor Frame Collar (DC) Set Screw Torque

Size in (mm) Size in – lbs

182TC – 184TC 2.123 (53.92) #8-36UNF 20
213TC – 215TC 2.598 (65.99) #10-32UNF 36
254TC – 256TC 3.228 (81.99) #10-32UNF 36
284TC – 286TC 3.738 (94.95) .25-28UNF 87
324TSC – 365TSC 2.858 (72.59) .25-28UNF 87
D80 IEC 1.078 (27.38) #8-36UNF 20
D90 IEC 1.472 (37.39) #8-36UNF 20
D100 – D112 IEC 1.865 (47.37) #8-36UNF 20
D132 IEC 2.628 (66.75) #10-32UNF 36
D160 IEC 3.689 (93.70) .25-28UNF 87
D180 IEC 3.689 (93.70) .25-28UNF 87
D200 IEC 3.689 (93.70) .25-28UNF 87

FIG. 1

TC MOTOR

FIG. 2

IEC MOTOR

MOTOR
MOUNTING
SURFACE

MOTOR
MOUNTING
SURFACE

DC

COLLAR
RING

DC

COLLAR
RING

Xylem Inc.

8200 N. Austin Avenue
Morton Grove, Illinois 60053
Phone: [phone]
Fax: [phone]
www.xyleminc.com/brands/bellgossett

Bell & Gossett is a trademark of Xylem Inc. or one of its subsidiaries.
© 2013 Xylem Inc. P71397B February 2013