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Operation - TM-5-3895-374-24-2_116
Problem Cause/Remedy Chart - TM-5-3895-374-24-2_118

TM-5-3895-374-24-2 M081 Asphalt Mixing Plant Manual
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TM 5-3895-374-24-2 Problem Cause/Remedy Chart PROBLEM CAUSE REMEDY PREMATURE TROUGH FAILURE A) Gauge too light A) Increase thickness.  Consult catalog materials table / compo- nent series for recommendation. B) Screw deflection B) Eliminate excessive deflection. Consult catalog for calculation pro- cedure to determine proper pipe size and screw length. C) Bent screw C) Straighten or replace.  Check before operation. ACCELERATED FLIGHT TIP WEAR A) Gauge too light A) Increase thickness.  Consider hardfacing. B) RPM’s too high B) Slow conveyor down.  Consult catalog engineering section to determine proper trough loading. COUPLING SHAFT BREAKAGE Torque capacity insufficient Increase torque capacity or use larger shaft.  Check motor amp de- mand for torque requirements. SHAFT HOLE ELONGATION A) Insufficient number of bolts A) Increase number of bolts. B) Conveyor subject to "jogging" B) Cease jogging or frequent stop/ or too frequent stop/start, or fre- start or overload.  If this is not quent overloads possible increase bearing capacity of shaft and/or increase number of bolts. DRIVE SHAFT BREAKAGE Excessive torque Recalculate HP requirements. insufficient torque capacity Increase torque capacity. Obstruction in conveyor Check screw alignment. page 3 - 751







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