Gunner gives direction to piece according to the system used, and either fires electrically or signals to No. 3 to fire. (Except in Case 3.)
Fig. 1.
Range-keeper calls off range, using predicting-scale, and corrects same for gun difference; signals or calls out "Elevation-set!"
No. 1 assists in opening and closing breech. Examines for dirt, etc., the breech-block and gas-check. Oils same. When necessary, assists in ramming. Places third section of cartridge on shot-tray.
