Q. How should a 3-inch R. F. breech-block be cared for—kind of oil, etc.
A. Same as for any other heavy gun. (See first part of book.)
Q. Describe how the extractor and firing pin work.
A. (This will have to be done at the gun.)
Q. Describe the action of the lever handle.
A. (Do this at the gun.)
Q. Point out the following parts of the gun and mount (masking parapet mount):
Outer base.
Inner base.
Counterweights.
Recoil-cylinder.
Piston-rod.
Pivot.
Pivot yoke.
Trunnions.
Traversing clamp.
Elevating clamp.
Range drum.
Cradle.
Elevating gear.
Sight.
Night Sights.
Ratchet lever.
Lever pawl.
Ratchet-wheel pawl.
Pivot socket and clamp.
Shield.
Muzzle.
Breech.
Bore.
Chamber.
A. See Figs. 17 and 19.
Q. How are rapid-fire guns cared for and kept in working order?