TM 5-3895-374-24-2Problem Cause/Remedy ChartPROBLEMCAUSEREMEDYMOTOR/HEATERS OVERLOADAmp demand excessive for motorRecheck horsepower calculations.Check material characteristics.Check capacity. Regulate feed.INLET TROUGH ENDA) Material getting into bearingA) Add or upgrade seal to keepBEARING FAILUREmaterial out of bearing. Change tooutboard bearing.B) Insufficient lubricationB) Lubricate properly.C) Shaft slopeC) Align screw. Check for ex-cessive screw deflection and forbent screw.DISCHARGE TROUGH ENDA) Material getting into bearingA)1. Add or upgrade seal.BEARING FAILURE2. Change to outboard bearing.3. Cut off flight at center ofdischarge.HANGER BEARING FAILUREA) Incorrect alignmentA) Align hanger.B) Heat due to hot materialB) Use appropriate bearingbeing conveyedmaterial.C) Heat due to insufficientC) Properly lubricatelubricationD) Thrust due to pipe pressingD) Check coupling bolts and holeson bearing insertfor elongation and wear. Replaceas necessary. Readjust screw/hanger assembly to get properclearances.E) Improper material causingE) Consult catalog for properpremature wearmaterial due to temperature,trough loading, and speed. Checkto insure coupling shaft materialand bearing material arecompatible.page 3 - 752
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