14. Replace locks according to numbers on front of locks and rear barrel-plate. 15. Replace lock-plugs. GATLING GUN, LONG BARREL, MODEL 1883. INSTRUCTIONS FOR DISMOUNTING. 1. Remove hinge-pin and take off hopper. 2. Remove lock-plug by turning to the right and take out locks. 3. Turn off the adjuster-knob by pressing down the catch and turning the knob to the left, or pressing down the catch and turning the crank in the same direction as when firing. 4. Remove the worm-cover, pull out the crank-shaft split-pin, and remove washer from left end of crank-shaft; hold one hand under worm-cover hole and draw out the crank-shaft to the right. In this operation the worm will fall through the worm-cover hole, and should be caught in the hand. 5. Take off the cascable-plate. To do this, first see that the cocking-switch is in the firing position, which is indicated by the arrow pointing forward. Then turn out the cascable-plate screw, and turn the plate to the left until the arrows on the plate and casing meet; hold one hand under worm-cover hole to receive worm-gear, and pull the plate off to the rear. 6. Take out the lock-cam. First pull the cocking-switch outward, turning it to the right until it snaps in the notch, the arrow pointing downward; the cam can now be pulled out, using the cam-extractor, or the fingers of both hands. 7. Take out the shell-guide. INSTRUCTIONS FOR ASSEMBLING. 1. Put in the shell-guide. 2. Put in the lock-cam, then turn the cocking-switch so that the arrow points forward. 3. Put on the cascable-plate. Be sure that the gear is inside the worm-cover hole, and turn the plate and gear until the grooves on the latter meet the splines on the main shaft; then push the plate into place, and turn to the right until the arrows on plate and casing meet. 4. Put in the crank-shaft and worm (countersunk-end of the latter to the right) and secure with washer and split-pin. 5. Screw on the adjuster-knob; turn it up as far as possible, and then back until lines on catch and ratchet meet. 6. Put in locks as numbered on front of locks and rear barrel-plate, and put in lock-plug. 7. Put on hopper and replace hinge-pin. NOMENCLATURE OF THE 1-INCH GUN. =In View.=--Main shaft, around which the barrels are clustered; front plate, which supports the front of the barrels; rear plate, which supports the rear end of the barrels; barrels; gun-frame; trunnions; gun-face; front sight; rear sight; breech-casing; breech-casing screws; cascable-plate; hopper; ejector; cartridge-carrier; crank; elevating-screw; elevating-screw box; elevating-screw bed; elevating-screw handle; wiping-rod (brass); ejecting-rod (iron); lock; lock-tube; lock-hammer; lock-spring; firing-pin; extractor. =Within the Breech-casing.=--Lock-cylinder; rear-guide nut; cocking-ring; cocking-ring clamp; spiral cam; diaphragm; diaphragm-plug; gear-wheel; pinion; rear-cam screw.