Coal trimmer

A coal trimmer or trimmer is a position within the engineering department of a coal fired ship which involves all coal handling tasks starting with the loading of coal into the ship and ending with the delivery of the coal to the stoker.
The trimmers worked inside the coal bunkers located on top of and between the boilers. Trimmers used shovels and wheelbarrows to move coal around the bunkers in order to keep the coal level, and to shovel the coal down the coal chute to the firemen below, who shoveled it into the furnaces. If too much coal built up on one side of a coal bunker, the ship would actually list to that side.