TO STRIP AND ASSEMBLE THE GUN.
1st.—Close breech.
(a) Lift feed piece to its highest position by pressing up on its lower end as for loading. This releases shoulder of piston from feed piece and allows it to move forward slightly and rest on the sear. (b) Pull trigger, cocking handle being set at “R” or “A.” As this releases sear, the piston is propelled forward by recoil spring and breech closed as when firing.
2nd.—Remove cocking handle.
(a) Throw cocking handle knob to left, slightly past vertical and against stop. (b) Draw cocking handle back about ½ inch and then throw knob to right as far as possible to an angle of about 45 degrees. By this movement cocking handle is released from piston. (c) Withdraw cocking handle to rear.
3rd.—Remove guard.
(a) Unscrew locking screws on left side of receiver three turns. (b) Grasp receiver firmly with left hand and stock or pistol grip with the right. Push stock forward about ⅜ inch and then bring it straight down, separating it from receiver. This combined movement will be learned after a few trials. Firing gear (sear, sear spring and trigger) remains with guard.
4th.—Withdraw recoil spring from receiver.
5th.—Remove recoiling mechanism.
(a) Insert cocking handle in piston and push it forward as far as it will go, knob inclined at about 45 degrees to right. When home, turn knob to vertical position so as to engage lugs at forward end with piston. (b) Draw cocking handle to rear, and with it the piston, breech block, extractor and firing pin.
6th.—Remove feed spring.
(a) Disengage feed spring from button at top of feed piece, springing it up with forefinger of right hand by means of the hooked portion projecting to rear. (b) Dismount feed spring by pushing it to rear with left hand by means of knurled button, at the same time springing it up sufficiently with right hand to clear pawl from rear feed guide.
7th.—Remove feed piece.
(a) Throw open feed piece cover by means of knurled knob. (b) Lift leaf of rear sight. (c) Lift feed piece to its highest position and turn through an angle of 180 degrees so that lever points to rear. As flattened portion of axis is now opposite corresponding slot in upper bearing, feed piece may be removed to rear.
8th.—Remove ejector.
(a) By means of key unscrew ejector cap and remove it. (b) Lift out ejector spring and then ejector.
9th.—Remove barrel.
(a) Unscrew barrel locking nut one-sixth of a turn to a stop with right hand, using dismounting wrench. (b) Remove barrel by drawing it straight to front.
10th.—Remove hand guard.
(a) Turn locking nut to left sufficiently to free its stud from engagement with hand guard. (This stud serves to hold hand guard in place while barrel is being mounted or dismounted.) (b) Remove hand guard by drawing it to front.
11th.—Unscrew and remove locking nut.
12th.—Remove fermeture nut.
13th.—Remove firing pin.
Reverse breech block and firing pin will fall into the hand.
14th.—Remove extractor.
(a) Grasp breech block with left hand and hand extractor with right; insert hook portion of latter between last and before last coil of extractor spring, compress the spring, tilt the end out of its seat and remove it. (b) By holding breech block upwards, extractor will fall out.
15th.—Remove firing gear from guard.
(a) Hold stock between knees, the guard to the front. (b) With right hand lift hooked arm of trigger sufficiently to clear it entirely from vertical lever of sear. (c) With left hand catch knurled button forming outer extremity of sear axis and draw to left sufficiently to free right hand end of axis from its pocket. Now lift sear vertically from guard. (d) Lift trigger upward and forward, separating it and sear with spring attached from guard. (e) Detach respective ends of spring from sear and trigger.
16th.—Remove cartridge stop.
(a) Unscrew cartridge stop holder by means of the dismounting wrench. (b) Withdraw cartridge stop spring and cartridge stop.