TM 5-3895-374-24-2 Problem Cause Solution/Reference Variable speed drive failure Variable speed drive energized and selected manual or auto Aggregate feed rate not to tolerance Calibration of bins in error Re-calibrate aggregate bins Belt slipping on feeder Repair, replace or tighten as required Drive belts slipping Repair, replace or tighten as required Blockage in discharge area of feeder Remove blockages Weigh scale in error Re-calibrate scale Asphalt not added to mix Asphalt metering pump stopped Start pump Divert valve selected to divert Select manual Divert valve failure Check manually by selecting DRUM position momentarily Asphalt tanker empty Replenish supply of asphalt cement Computer failure caused by 0% asphalt entered Enter percent of asphalt cement required Computer failure caused by improper time Enter correct time delay required Low air pressure Valves not set correctly Blockage in lines Liquid asphalt not to temperature page 4 - 3