Bell & Gossett IM228R04 e-SV - Manual (Page 16)

16
WARNING
Hazardous
voltage
TORQUE VALUES
HP Motor Bolt Adapter Flange
Coupling
1-5SV 10-22SV 33-92SV
0.75-7.5 HP 20 lbs ft (27 N·m) – 15 lbs ft (20 N·m) 40 lbs ft (54 N·m) 37 lbs ft (50 N·m)
10-75 HP 45 lbs ft (61 N·m) 48 lbs ft (65 N·m)* 15 lbs ft (20 N·m) 40 lbs ft (54 N·m) 48 lbs ft (65 N·m)
*213TC and 215TC Adapter Flange use 30 lbs ft (40 N m)
NOTE: Discharge loop must be high enough to keep liquid in the bottom stages during shut-down.
TORQUE VALUES
Pump Size Tie Rod Nuts Vent and Drain
1-5SV 22 lbs ft (30 N·m) 15 lbs ft (20 N·m)
10-22SV 37 lbs ft (50 N·m) 15 lbs ft (20 N·m)
33-125SV 44 lbs ft (60 N·m) 29 lbs ft (40 N·m)
VENT NEEDLE
Pump Size
1-5SV
10-22SV 7 lbs ft (9.5 N·m)
33-125SV
DISCONNECT AND LOCKOUT ELECTRICAL POWER BEFORE
ATTEMPTING ANY MAINTENANCE. FAILURE TO DO SO CAN
CAUSE SHOCK, BURNS OR DEATH.
SYMPTOM
MOTOR NOT RUNNING
See Probable Cause – 1 through 5
LITTLE OR NO LIQUID DELIVERED BY PUMP
See Probable Cause – 6 through 12
POWER CONSUMPTION TOO HIGH
See Probable Cause – 3, 12, 13, 15
EXCESSIVE NOISE AND VIBRATION
See Probable Cause – 3, 6 - 8, 10, 12, 13, 16
PROBABLE CAUSE
1. Motor thermal protector tripped.
2. Open circuit breaker or blown fuse.
3. Impellers binding.
4. Motor improperly wired.
5. Defective motor.
6. Pump is not primed, air or gases in liquid.
7. Discharge, suction plugged or valve closed.
8. Incorrect rotation (three phase only).
9. Low voltage or phase loss.
10. Impellers worn or plugged.
11. System head too high.
12. NPSH
A
too low – excessive suction lift or losses.
13. Discharge head too low – excessive flow rate.
14. Fluid viscosity, specific gravity too high.
15. Worn bearing.
16. Pump, motor or piping loose.