Matthaus On: Wed Jan 14, 2009 10:17 am
Take an adjustable wrench and bend the end of the flighting out so it extends at least .5" outside the end of the tube. Then take a grinder and make sure you have an angle on the end, kind of like a lawn mower blade except not sharp, just angled. This will enhance the action of the auger in the pile.
I did this per a suggestion from GregL about a week ago. I didn't grind the end of the flight, but from years of service, it was worn almost to an edge.
Freddy, The doghouse used in this bin is the factory doghouse. The installation was made with the bottom of the boiler being at the same elevation as the bottom of the doghouse. The tube is sticking out of the doghouse by 2.5" (about). The end of the tube is up off the floor of the bin by about an inch. this is different than what you describe. I also think the end of my feed tube is missing some material. The end of the screw flight sticks out about an inch (not flush like yours). Not sure how this would impact the feeding of fines/nuggets but I know it's different than your new one.
I talked to a friend today who has his boiler disassembled and out of service while moving. I'm going to borrow his feed tube and with a 30 minute swap-out a lot of questions will be answered. He also said that last winter his coal was sopping wet and would take days to stop running all over the floor after filling the bin (the same bin I am now using). He had no problems with plugging. He used this bin for two years prior to me buying it from him this past fall. the set-up is exactly the same as mine except his feed tube is in better shape than mine. He also had fines but not near as many. at the end of the season, he would clean out the coal bin and also clean out the fines that collected under it.
Thanks for the input.
By the way, the parts came in from AA. I plan to install the agitator tonight. Is this going to make my problem with the fines worse?... by further shaking the fines to the bottom of the bin?