Pot Bushing

Stoker Coal Boilers automatically feed the coal and have controls and pumps just like any conventions boiler. They are intended to be used as a primary heat and often have domestic hot water coils as an added bonus. They can be set up independently or in dual sytem with your existing oil/gas boiler. They can accommodate both hot water base board or steam plumbing.
Post Reply
zickeres
New Member
Posts: 16
Joined: Fri. Oct. 31, 2008 8:00 pm
Stove/Furnace Make: efm
Location: kingston pa.

Post Wed. Nov. 05, 2008 9:23 pm

I recentely posted that my worm broke. After picking up anew one ,i noticed a difference. I found out that where my worm goes into the pot bushing.it actually took off the raised part of the worm that rides in the bushing and some of it is stuck inside the bushing. Any ideas of the best way to repair this problem the best way would be great. I did buy a new bushing with the pot worm. Thanks Rick

lincolnmania
Member
Posts: 828
Joined: Fri. Jan. 26, 2007 9:55 pm
Hot Air Coal Stoker Furnace: efm af-150 1982
Hot Air Coal Stoker Stove: alaska kodiak stoker 1986
Hand Fed Coal Stove: warm morning 1980 kenmore
Location: newtown/zerbe pa
Contact:

Post Wed. Nov. 05, 2008 9:33 pm

you have to knock out the old bushing and install the new one

zickeres
New Member
Posts: 16
Joined: Fri. Oct. 31, 2008 8:00 pm
Stove/Furnace Make: efm
Location: kingston pa.

Post Wed. Nov. 05, 2008 9:43 pm

I realize the bushing has to come out. But is it eaiser to take the whole pot out to put it in,and what works best to knock it out and put it back in. Is there some kind of stop or lip when I put it back in,how far should it set inside. Rick

Visit Alternate Heating Sytems

lincolnmania
Member
Posts: 828
Joined: Fri. Jan. 26, 2007 9:55 pm
Hot Air Coal Stoker Furnace: efm af-150 1982
Hot Air Coal Stoker Stove: alaska kodiak stoker 1986
Hand Fed Coal Stove: warm morning 1980 kenmore
Location: newtown/zerbe pa
Contact:

Post Wed. Nov. 05, 2008 9:48 pm

i replaced mine with the stoker installed.....iirc .i used an old 3/8" extension thru the auger hole to drive it in

User avatar
stoker-man
Verified Business Rep.
Posts: 2063
Joined: Mon. Nov. 19, 2007 9:33 pm
Hand Fed Coal Boiler: 1981 efm wcb-24 in use 365 days a year
Coal Size/Type: Anthracite/Chestnut
Other Heating: Hearthstone wood stove
Location: Lehigh Valley, PA

Post Thu. Nov. 06, 2008 5:56 am

It's not clear what happened. If you are trying to replace the pot bushing, its probably easier to remove the gooseneck if you already have the pipe out. Just drive the old one through; there are no stops. Install the new bushing until the edge is flush with the casting on the driven side.

They can be very difficult to remove. If I were in the business, I would have a special tool made at a machine shop for that purpose. Use Never Seize when you install the new one.
‹(•¿•)›

User avatar
Pa Dealer
Member
Posts: 244
Joined: Fri. Aug. 15, 2008 10:12 am
Stoker Coal Boiler: EFM 520 DF
Coal Size/Type: Rice
Other Heating: Keystoker
Stove/Furnace Make: EFM DF 520
Stove/Furnace Model: Keystoker
Location: NEPA

Post Sat. Nov. 08, 2008 8:30 am

A piece of 1/2" sch. 40 iron pipe is the same o.d. as the pot bushing.

Post Reply

Return to “Stoker Coal Boilers Using Anthracite (Hydronic and Steam)”