1
When in, 3, 4 move up the Truck-quoins, 12 chokes luff of Train-tackle.
2
12 chokes luff of Train-tackle, assisted, if there is much motion, by No.
3
11 and 12 choke luff of whip.
4
11 chokes luff of train-tackle, or hitches it, if required; provides and hooks tackle of muzzle-purchase; belays and lowers.