TM  10-3930-638-24&P 3-19.   TRANSMISSION   MAINTENANCE   (cont) a. Transmission Pressure Check (cont). PROCEDURE NORMAL STEP LOCATION ITEM ACTION INDICATION REMARKS 3 Engine  com- a.  Torque  converter partment, output  pressure transmission plug Remove b. Zero to 300 PSI pressure  gage 4 Wheels Wheel chocks 5 Operator’s  com- a. Ignition switch partment b.  START  switch c. Parking brake d.  Direction  selector e.  Accelerator  pedal Connect Position ON Depress Apply N Depress f. Accelerator pedal Release To  torque  converter  output pressure port Block  wheels Engine  starts Pressure gage indicates Para 3-17, LOSS OF DRIVE 25 PSI minimum to IN ALL RANGES, step 2, 70 PSI maximum at and  LOSS  OF  POWER 2000  RPM  engine AND/OR LOSS OF DRIVE speed IN ANY ONE RANGE, step  1 3-127