TM 10-3930-653-14&P TROUBLESHOOTING Cautions When the Machine is Disabled When towing a machine equipped with Tor-Co-Matic^® transmission, be sure to follow the requirements given below: 1. The drive shaft should be disconnected from the front wheel hub. 2. The change lever should be in neutral position. These measures prevent seizure.  With the torque converter pump idle, normal lubrication is  not  taking  place  and  rotation  from  the  front  wheels  is  transmitted  to  the  transmission gears and multi-disk clutch, resulting In heat and possible seizure. SYMPTOM  1 Truck does not operate ......................................................................4-136 SYMPTOM  2 Poor acceleration or poor gradeability................................................4-137 SYMPTOM  3 Excessively high oil temperature........................................................4-139 SYMPTOM  4 Truck moves even in neutral position.................................................4-139 SYMPTOM  5 Abnormal sound (buzzing) .................................................................4-141 SYMPTOM  6 Oil leakage .........................................................................................4-142 4-135