GE SS1000, SS1800, SS500 General Troubleshooting for ALL Pumps, LOW Flow Motor Runs HOT or Stops

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4.0GENERAL TROUBLESHOOTING FOR ALL PUMPS

4.1Troubleshooting Chart

 

LOW FLOW

 

MOTOR RUNS HOT OR STOPS

 

 

 

 

1.

Restrictions in inlet or discharge

1.

Motor surface temperature up to

2.

Foot valve operating improperly

 

104°F (40°C) over ambient can

3.

Air leak in inlet piping

 

occur. The motor will feel hot to the

4.

Air leak in mechanical seal

 

touch.

5.

Wrong installation of belt drive

2.

Bad connection

6.

Suction lift too high

3.

Motor exceeded rated amp draw

7.

Reverse rotation of pump shaft

4.

Excessive ambient temperature

8.

Pump not primed adequately

5.

Heater size to small in motor heater

9.

Inlet strainer/filter plugged.

6.

Binding rotation in the pump shaft

10.

Pump throttling valve on discharge

7.

Bearings not adequately lubricated

 

closed (pump deadheaded)

8.

Specific gravity or viscosity of liquid

 

 

 

higher than design conditions

 

 

9.

Motor wired improperly

 

MOTOR DOES NOT RUN

 

LOW PRESSURE

 

 

 

 

1.

Blown fuse or tripped circuit breaker or

1.

Pump not adequately primed

 

overload heater

2.

Air leak in inlet piping

2.

Motor to hot - allow to cool

3.

Excessive flow

3.

Motor voltage connection and line

4.

Clogged suction line filter or screen

 

voltage different

5.

Reverse rotation of pump shaft

4.

Bad connection

6.

Foot valve operating improperly

5.

Motor wired improperly

7.

Wrong ratio for belt drive

6.

Wrong ratio for belt drive

 

 

 

PUMP VIBRATION

 

PUMP LEAKING

 

 

 

 

1.

Misalignment of flexible coupling

1.

Mechanical seal needs replacing

2.

Bent pump shaft

2.

O-rings in pump casing damaged

3.

Improper mounting

3.

Oil seals need replacing

4.

Starved suction

4.

Piping not sealed properly

5.

Worn bearings

 

 

6.

Motor out of balance

 

 

7.

Operating beyond specified capacity

 

 

 

range of the pump

 

 

12

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Contents Osmonics TONKAFLO Pumps SS Series Page Introduction Tonkaflo Specifications Cutaway Drawings List of Figures Page Introduction Tonkaflo Specifications Capacities 2900 rpm 3500 rpm Maximum500 Hertz D e l S S 5 0 5 D e l S S 1 8 4 8 X B 5Pump Installation Inlet and Discharge Piping and Connections Inlet PipingInlet Piping Page Installation Discharge Screen Primed Before START-UPMotor Wiring Single-Phase Motors StepsChanging Motor Rotation Rolling the Leads to Balance Current Draw General Troubleshooting for ALL Pumps LOW Flow Motor Runs HOT or StopsSteps Page Page Force the Shaft Into the Impeller Bore Tonkaflo Pump Field Maintenance Motor Installation XB and XC Motor Adapter Pumps Steps Page Liquid END Tonkaflo Service Policy Tonkaflo Pump Return Goods Authorization RGA Procedure Dimensional Drawings 500X Motor Adapter PumpXB Motor Adapter Pump 1000X Motor Adapter Pump 1800XB Motor Adapter Pump 1800XC Motor Adapter Pump Cutaway Drawings XB and XC Motor Adapter Pump Standard Model Parts List DescriptionPart Number Series Ordering Parts Warranty Tonkaflo Pump Warranty Page USA France Thailand
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SS500, SS1800, SS1000 specifications

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