TM 9-2320-209-34-2-2 FRAME 3 1. 2. 3. 4. Working through shaft hole in power leveler mounting flange (1), mount dial indicator on housing and set stem against side of reduction drive gear tooth (2) as shown. NOTE When measuring backlash, make sure that first reduction drive pinion (3) does not turn. If pinion turns, backlash readings will be wrong. Turn drive gear (4) away from dial indicator until drive gear tooth (5) touches pinion tooth (6) as shown in view A. Set dial indicator to read 0. Turn drive gear (4) towards dial indicator until drive gear tooth (7) touches either side o-f pinion tooth (6) as indicator. IF READING ON DIAL INDICATOR IS IF READING ON DIAL INDICATOR IS shown in view B. Note reading on - dial NOT 0.006 TO 0.024 INCH, GO TO FRAME 4. 0.006 TO 0.024 INCH, END OF TASK 17-552