TM  10-3930-643-34 TRANSMISSION 6-3. Torque TESTING 7. Perform TROUBLESHOOTING  AND  MAINTENANCE. Converter. (Sheet 3 of 9) stall check: NOTE Perform stall check using tacho- meter transducer tester for vehicles 2001 and above. Use electronic  tachometer  for  vehicles 2000 and below. a. Apply parking brake. b. Install tachometer transducer tester,  refer to VTM-General Setup and Checkout Instructions in TM 9-4910-571-12&P. c. Increase engine speed to be sure it will operate at high idle (2650 to 2750 rpm). d. Shift transmission to forward and third gear. e. Depress accelerator to  its maximum position and record engine rpm. Engine rpm should be 2300 to 2550 rpm. Do not exceed 15 seconds per stall check.  Do  not  allow torque converter to exceed normal operating  temperature. REMOVAL NOTE Tag all hose and tube assemblies before disconnecting to aid in installation. 8. Using 1-1/2” and 718” open end wrenches,  disconnect  hose assemblies (1, 2 and 3) in front of  engine. Go to sheet 4 6-13