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11.Thoroughly clean all castings Pump operates with selector Motor stops and then restarts after <br /> before replacing seals.One grain switch in Hand position but will short period but overload heaters <br /> of dirt between the seal faces can not operate in Auto position. in starter do not trip. <br /> use failure.4,► <br /> 1.This indicates trouble in the 1.This indicates heat sensors in <br /> e sure seal washers are replaced float level control or the the motor are tripping due to <br /> der heads of the 4 bolts that alternator relay. excessive heat.Impeller may <br /> hold bearing cap in place. 2.To check for defective float be partially clogged giving a <br /> 13.Be sure key is in place in notch control,put selector switch in sustained overload but not <br /> of shaft sleeve to prevent sleeve Auto position and turn off main high enough to trip overload <br /> from turning. power.Put a jump wire on heater switch. <br /> 14.Use Locktite®on socket head, terminal strip. Turn on power and 2.Motor may be operating out of <br /> locking screw in end of shaft. if pump starts,trouble is in float liquid due to a failed <br /> control.Replace control level control. <br /> 15.Before refilling chamber with oil, n 3.Pump may be operating on a <br /> air test. Pump runs but willot shut off. short cycle due to sump being <br /> 16.Refill both chambers with oil. 1.Pump may be air locked.Turn too small or from water returning <br /> 17.Always check all leads with pump off and let set for several to sump due to a leaking <br /> high voltage or with Megger minutes,then restart. check valve. <br /> for grounds before operating 2.Lower float control may be hung- <br /> the pump. up in the closed position.Check <br /> in sump to be sure control is free. <br /> Pump 3.Selector switch may be in the <br /> Troubleshooting Hand position. <br /> Below is a list of common problems Pump does not deliver proper <br /> and the probable causes: capacity. <br /> Pump will not start. 1.Discharge gate valve may <br /> ml o power to the motor. be partially closed or <br /> m heck for blown fuse or Partially clogged. <br /> en circuit breaker. 2.Check valve may be partially <br /> 2.Selector switch may be in the clogged.Raise level up and <br /> Off position. down to clear. <br /> 3:Control circuit `�sformer fuse 3.Pump may be running in wrong <br /> may be blown. direction. Low speed pumps <br /> can operate in reverse direction <br /> 4.Overload heater on starter may be without much noise or vibration. <br /> tripped.Push to reset. 4.Discharge head may be too high. <br /> Pump will not start and overload Check total head with gauge <br /> heaters trip, when pump is operating.Total <br /> 1.Turn off power and check motor head is discharge gauge pressure <br /> leads with Megger or ohmmeter converted to feet plus vertical <br /> for possible ground. height from water level in sump <br /> to center line of pressure gauge <br /> 2.Check resistance of motor in discharge line. Gauge should <br /> windings. All 3 phases should be installed on pump side of all <br /> show the same reading. valves.Multiply gauge pressure <br /> 3.If no grounds exist and the motor in pounds by 2.31 to get head <br /> windings check OK,remove in feet. <br /> pump from sump and check for 5.If pump has been in service for <br /> clogged or blocked impeller. some time and capacity falls off, <br /> remove pump and check for wear <br /> or clogged impeller. <br /> 6 <br />