I just went out and checked on the boiler, it was on a heat cycle, the temp was about 175. I was out there for a few minutes, when I look at the temp again, it was 170, dropping while the stoker was still running. That blower I installed yesterday has really changed the load on the boiler!
Feed rate adjustment;
The output side of the gearbox has six threaded holes starting near the center, spirilling out towards the edge. The hole closest to the center is the lowest feed rate, the one at the outer edge is the highest feed rate.
We will call the lowest feed rate hole 1 and the highest feed rate hole 6. I had it set on 3 and it seemed that the boiler was having trouble keeping up AND as Rob pointed out there was a good 5" or so of ash on the end of the grate. I moved up two steps to 5, I am waiting to see what that does.
Keep in mind that the linkage has a lot of ware. The large lever that the gearbox drives back and forth moves at least 1/4" before the grate starts to move. 5 is also the setting that was used by the previous owner.