Tangent Sight and Spring.
(a) Remove top fixing screw of graduated plate. (b) Run the slide off stem. (c) Remove fixing screw of milled head and lift latter off slide. (d) Remove fixing pin, pawl, and pinion from slide. (e) Place the milled head, face upwards, on a bench; then, with small screwdriver applied to rectangular nib on slide spring, knock latter down flush with face, when it can be lifted out with pliers.
EXAMINATION AND TESTING.
Before assembling the gun all parts should be tried in their places separately to see that they work freely.
Test friction of recoiling portions (as Maxim, page [22]).
Assembling.
Reverse all foregoing operations with exception that recoiling portions must be replaced before packing and packing gland. When assembling lock, care must be taken that lock spring is replaced with lock in fired position, and when all the other parts are assembled. When assembling rear crosspiece see that pawl of firing lever engages with trigger bar lever. When assembling tangent sight, it will be found convenient to place slide on stem (axis end) before attaching the milled head; in this position pinion is prevented from turning with pawl when engaging arms of spring outside lugs on pawl.
REPLACEMENT OF DEFECTIVE PARTS.
(As Maxim, page [22].)