FILL-RITE Sotera 400B Serie Manual De Operacion Del Propietario página 12

| 400B SERIES ELECTRIC DIAPHRAGM PUMPS
Troubleshooting Guide
SYMPTOM POSSIBLE CAUSE
Suction line problem
Leaky check valves
Check valves improperly installed
Pump will not prime
Outlet plugged
Motor not operating
Stripped or damaged gears
Motor faulty
Pump hums but
will not rotate
Gear mechanism jammed
Low voltage
Leaky suction line
Low pump capacity Dirt in check valve
Faulty check valves
Debris ingested
Pumping hot fluids
Motor overheats
Motor faulty
Faulty or missing gaskets
Loose bolts
Fluid leakage
Cracked component
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SOLUTION
Check for leaks in suction line
Check for dirt or damaged check valves and replace
Check for proper installation
Check for blockage and clear
Check power source
Repair or replace motor. Check gear assembly and drive gear for damage.
Replace complete assembly if necessary
Replace motor
Check for free rotation of the gears
Check power source
Repair leaks
Dismantle and clean
Install repair kit
Add inlet screen
Shorten duty cycle
Replace motor
Install all gaskets specified in parts list
Torque all 1/4" torx head bolts to 76 in. lbs.
Torque hex head 1/4-20 motor bolts to 50 in. lbs.
Replace defective component
OPERATION MANUAL
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