General Troubleshooting For Tonkaflo Pumps; Troubleshooting Chart; Bearing Frame Temperature - GE OSMONICS TONKAFLO SS Series Installation, Operation And Maintenance Manual

5.0

GENERAL TROUBLESHOOTING FOR TONKAFLO PUMPS

5.1

Troubleshooting Chart

1. Restrictions in inlet or discharge
2. Foot valve operating improperly
3. Air leak in inlet piping
4. Air leak in mechanical seal
5. Wrong installation of belt drive
6. Suction lift too high
7. Reverse rotation of pump shaft
8. Pump not primed adequately
9. Inlet strainer/filter plugged.
MOTOR DOES NOT RUN
1. Blown fuse or tripped circuit breaker or
overload heater
2. Motor to hot - allow to cool
3. Motor voltage connection and line
voltage different
4. Bad connection
5. Motor wired improperly
6. Wrong ratio for belt drive
1. Misalignment of flexible coupling
2. Bent pump shaft
3. Improper mounting
4. Starved suction
5. Worn bearings
6. Motor out of balance
5.2

Bearing Frame Temperature

The operating temperature of the oil lubricated E-Bearing frame utilized on high
pressure Tonkaflo pumps will vary depending on the boost pressure of the pump. As
a general rule, type E-Bearing frames will operate within a temperature range of
130°-203°F (54° - 95°C). During operation, the bearing frame will feel hot to the touch.
LOW FLOW
PUMP VIBRATION
MOTOR RUNS HOT OR STOPS
1. Motor wired improperly
2. Bad connection
3. Motor exceeded rated amp draw
4. Excessive ambient temperature
5. Heater size to small in motor heater
6. Binding rotation in the pump shaft
7. Bearings not adequately lubricated
8. Specific gravity or viscosity of liquid
higher than design conditions
LOW PRESSURE
1. Pump not adequately primed
2. Air leak in inlet piping
3. Excessive flow
4. Clogged suction line filter or screen
5. Reverse rotation of pump shaft
6. Foot valve operating improperly
PUMP LEAKING
1. Mechanical seal needs replacing
2. O-rings in pump casing damaged
3. Oil seals need replacing
4. Piping not sealed properly
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