Okay, all great advice on the main; and if you really need to cheat in bad weather; you can buy a battery powered drill, with a 90 degree chuck; and a "winch bit" from the sailing magazines. Hoist by hand from the cockpit; slip on the drill to the winch, and pull the trigger.
Stop when you are close to the full hoist position; and EASE it the last foot.
These things are powerful. Can be run under the dodger in a blow....