opposite side. Wipe it clean. Whenever motor is required to be
unhooked/ repaired, follow shut-off lock-out procedure and refer to the
pump/motor manufacturers I&O manual as required.
C.
CONTROL PANEL/PUMP STARTER:
A blown-out fuse and/or consistently kicked-back circuit breaker is
indicative of a motor overloading/overheating. The built-in
thermostat in the motor is experiencing an excessive rise in
temperature, which might be caused by sudden voltage
increase/drop, phase imbalance or over-torqued shaft. Verify
motor bearings, terminal connections for looseness and
correctness. Verify pump is rotating freely. Mechanical
interference inside the pump might be causing this problem.
Under-rated circuit breakers, contactors, relays and/or heaters will
also cause this situation. Use appropriately sized components.
Also, undersized wires/cables might cause shorting and
overheating. An excessively hot environment might also cause
premature failure of motor and electrical components. Avoid
installing system in direct sunlight or near heated objects or
equipment. Vibrating equipment may cause loosening of terminal
bolts and screws; make sure vibration is dissipated whenever the
STS System is required to be installed in such a location.
D.
PRESSURE GAUGES:
Stuck needles/pegged gauges might indicate false readings. Verify
their operation by opening and closing petcock valve installed
before the gauges. Replace gauges, if necessary.
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