No. 1: Removes breech-cover and inspects breech mechanism.

No. 2: Bore, chamber, gas-check seat, breech-recess, vent, primer-seat.

Nos. 3 and 4 assist in sponging bore if on No. 2's inspection it is found to need it.

Nos. 5 and 6: Recoil-cylinders.

No. 9 passes up funnel, measure, etc., to No. 5.

Nos. 7 and 8: Traversing-gear with gunner.

No. 10 passes up and replaces sponge when necessary.

Nos. 11 and 12: Shot-hoist tackle; remove muzzle-cover.

Nos. 13 and 14: Shot-hoist gearing.

Nos. 15 and 16: Trucks.