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SAFETY PRECAUTIONS PERIODIC INSPECTION <br /> 1. Disconnect and lockout the electrical supply to Periodic inspection of the pump should be <br /> the motor before working on the unit,or if performed at six month intervals. The pump should <br /> maintenance is to be performed on the pump in a be cleaned of accumulated abrasive particles and <br /> flooded area. debris. The wet well should also be cleaned of <br /> 2. Exercise caution when working in the exposed accumulated abrasive particles. <br /> areas of the rotating parts. <br /> 3. In case of severe vibration or unusual noise,shut Check the motor housing and the seal chamber for <br /> off pump at once and determine the cause. moisture in the following manner: <br /> 4. If frequent tripping of the overload protection <br /> occurs,troubleshoot the pump to correct the 1. Place the pump in a horizontal position in a V- <br /> problem. block chamber with the seal chamber plugs <br /> facing downward. <br /> TROUBLESHOOTING PUMP 2. Remove the plugs and drain the content of the <br /> seal chamber in a transparent container and <br /> Problem Probable Cause allow the draied liquid to settle. <br /> Insufficient or 1. Blown fuses or open circuit 3. If no water settles to the bottom of the container, <br /> No Water Flow breakers the chamber can be refilled with clean oil and <br /> 2. Poor switch contact the plugs replaced. <br /> 3. Discharge head too high <br /> 4. Clogged or damaged impeller 4. If water settles in the container,the source of the <br /> 5. Binding shaft liquid must be determined and worn and/or <br /> 6. Check or gate valve closed damaged seals,0-rings,etc.must be replaced. <br /> 7. Water level below casing 5. Turn the pump over,remove the motor shell <br /> Insufficient Pressure 1. Low voltage plug,drain the motor houseing into a transparent <br /> 2. Clogged or damaged impeller container. <br /> 3. Motor incorrectly wired 6. If no liquid is present,replace the plug. <br /> 4. Pump may be air-bound <br /> 7. If oil or oil and water are present,the upper seal <br /> Noisy or Vibrating 1. Misaligned or bent shaft must be inspected. <br /> Pump 2. Worn bearings <br /> 3. Lack of lubrication 8. If only water is present the leakage source is <br /> 4. Water level below casing most likly in the motor housing and the <br /> 5. Impeller rubbing or damaged condition of the 0-rings and/or the cable seal <br /> 6. Clogged impeller should be checked. <br /> NOTE REPLACEMENT PUMPS <br /> Submersible motors have an air relief slot on the Single phase units have starting modules built into <br /> lower mounting flange area. This slot is to prevent the motor. When replaceing exsiting pumps,check <br /> air lock.Under normal operation water will spray for any exsiting external modules,control panel <br /> out of the air relief slot.The normal water level mounted or seperatly mounted.These must be <br /> should be above the slot at shut off. removed or bypassed for proper operation of the <br /> pumping unit. <br /> IMPORTANT NOTICE <br /> For warranty consideration contact your local Weil <br /> representative before disassembly or repair. <br /> NOTE <br /> See separate instructions for pump assembly and <br /> disassembly. <br /> ---� WEIL PUMP <br /> A WILO COMPANY <br /> EM-1600-4 <br />