DS21 & DS21M / DS19A & DS19MA Repair Manual — Page 197

34, a) b) c) a) 35. a) b) c) Fit the main shaft. Place the shaft with the pinions, prepared as in paragraph 25, in the gearbox. Fit the front bearing, then the rear bearing, using a tube, 30 mm interior diameter x 300 mm long. Engage two gears and tighten the dog to between 108 and 122 lbs ft, (15 - 17 (i.e. 147 - 166.6 m N) (spanner 1734-T). Fit: - the oil return flange, with its recess engaged on the stop boss,