I've looked on the AHS site for a viewable set of instructions. But can't find any.
If you have some matchlight BBQ charcoal, you can use a pair of Channel-lock pliers and break several cubes into quarters, make a furrow in the coal on your grate, fill the furrow with the matchlight chunks. Then use a propane torch to light the matchlight coal. Once it has caught, turn on the boiler so you have a draft and combustion air. Add a handfull of coal over the row of burning charcoal. This should do it.
Another method would be to use some good dry wood, a few strips of 2x4 cut or split to about the size of a pencil will light and burn hot very fast, make a 1-2" high pile of this wood kindling, you can put some crumpled paper underneath or use the handy propane torch to light the wood. As before, turn on the boiler to get a draft and combustion air, once the kindling is burning well, add a few pieces of coal to the pile and soon it will be a coal fire.
We have only one AHS coal stoker-boiler owner on the site that I remember, hopefully he will see your post and help out.
Hope this helps, Greg L