Pictorial: the Burner Pot Assembly W/Part Numbers

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

Post by stoker-man » Sun. Dec. 30, 2007 7:30 pm

The Burner Pot assembly w/part numbers

Pictorial: Showing all parts, parts numbers and sequence of assembly

CLICK ON ANY PICTURE FOR A LARGER VIEW
1machined-gooseneck.jpg

9460649 Machined gooseneck

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1gooseneck-parts1.jpg

Described in order starting from the top left to the bottom right

9433746 Gooseneck bushing (Mates with the burner worm bushing)
81518 Set screws
87029 Bolt ½” X 13 X 1
82508 Washer ½”
82307 Lockwasher ½”
9433739 Shoulder bolt
9431875 Cleanout cover wedges
81017 Machine screws 12/24 X ¾”
82817 Roll pin 3/16 X ¾”

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1gooseneck-cleanout-cover.jpg

9451280 Clean-out cover

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1gooseneck-assembly-step-1.jpg

The first step of assembly is to install the roll pin. This pin indexes the notched burner-end tube when inserted into the gooseneck. The holes drilled into the burner-end tube must face upward towards the top of the boiler. Their purpose is to allow any coal gas in the pipe to be vented safely into the burner pot. The clean-out wedges are loosely installed.

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1complete-gooseneck-assembl.jpg

The shoulder bolt, set screws, and clean-out cover are installed. Properly installed, the clean-out cover will slide under the wedges in the closed position and fit snugly against the gooseneck. There will be no air entering in any of the five ports in the cover. The shoulder bolt is installed in the clean-out cover tab and is shown in this picture with the bolt head on the rear side of the cover. It's put there to protect it from damage during shipping and handling, but when the final installation is complete, the bolt head will be on the visible side of the cover and will be the lowest piece on the installed pot assembly.

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1gooseneck-assembly-step-2.jpg

The gooseneck bushing is installed.

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1rope-gasket-in-gooseneck.jpg

Rope gasket (9435999) is installed in the gooseneck machining.

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1rope-gasket-on-air-chamber.jpg

9460430 Machined Air Chamber with the air chamber rope gasket (9435770) applied

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1roll-pin-in-air-chamber.jpg

A roll pin, part #82817 is installed into the air chamber as an index pin for the air tube. This pin will mate with the notched end of the air tube and hold the pot assembly, along with the two set screws, part # 81505, at a 90 degree angle to the stoker.

.JPG | 1.3MB | 1roll-pin-in-air-chamber.jpg
1rope-gasket-on-burner-ring.jpg

9450998 Burner plate holder/Burner ring
9435683 Burner plate rope gasket

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burner-plate.jpg

9450840 Burner plate
82019 1/4 X 20 X 1 1/4 Machine screw
81603 1/4" Square nut
9436232K Complete burner plate set, 1 plate, 1 screw, 1 nut

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1burner-ring-air-chamber-as.jpg

The burner plates (9436232K) are installed in the burner ring with six ¼ X 20 X 1 ¼” machine screws (82019) shown in the inner circle. The assembly is then bolted to the air chamber using another set of six screws. Note that the plates are concentric at their bottom. If the plates are not concentric, loosen the burner plate screws and move them until they are in a perfect circle, otherwise they will not fit into the gooseneck machining.

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1air-chamber-burner-ring-as.jpg

A view of the perfect circle necessary to install the burner plates into the gooseneck machining.

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1burner-end-pipe-insertion-.jpg

The gooseneck assembly is now bolted to the air chamber and secured with four allen head bolts (87085). Note the position of the gooseneck in relation to the air chamber. It may be necessary to use a rubber mallet to tap around the edges of the gooseneck to seat the bottom of the burner plates into the rope gasket in order to get the allen head bolts to engage the threads in the air chamber.

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1pot-assembly-bottom.jpg

Complete pot assembly

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1-pot-assembly-top.jpg

Complete pot assembly

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PolarLight
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Posts: 261
Joined: Fri. Apr. 06, 2018 5:07 pm
Stoker Coal Boiler: JB
Coal Size/Type: Nut
Other Heating: Propane, firewood

Post by PolarLight » Sun. Jun. 09, 2019 12:49 pm

Thanks for the schematics. Do you know if this is the antracite or multifiel burner? Can I burn chips there as well? where I can buy the whole set?
Also interested which auger diameter it fits....

 
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StokerDon
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Stoker Coal Boiler: Gentleman Janitor GJ-5, Van Wert VA-600, Axeman Anderson130 X3.
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Coal Size/Type: Rice, Chestnut and whatever will fit through the door on the Harman
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Post by StokerDon » Sun. Jun. 09, 2019 6:44 pm

This is an EFM coal stoker. It's been around since the early 1950's and hasn't changed much in 60 years. Yes, you can still buy them but they are expensive. Buying a used one is a better option.

Several years ago I read that EFM got this stoker certified as multi-fuel. If I remember correctly, it will burn a mix of 60% Anthracite and 40% wood pellets. It won't burn 100% wood pellets.

-Don


 
PolarLight
Member
Posts: 261
Joined: Fri. Apr. 06, 2018 5:07 pm
Stoker Coal Boiler: JB
Coal Size/Type: Nut
Other Heating: Propane, firewood

Post by PolarLight » Sun. Jun. 09, 2019 11:48 pm

Sorry, I wanted to say that want to buy the only burner pot assembly, not the whole Stroker. Want to install it into my boiler.
Never understand people who burn mixture of pellets and coal. Pellets are more expensive and they give less heat. They also soaking moisture from coal and turn into dust that blocks auger and all moving parts. So, unless you press them, heating with pellets more expensive. In our place they cost $6.5 Canadians per bag. My wife gets them for our cats.
Wood chips are everywhere and they cost almost nothing to produce.

 
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Scottscoaled
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Baseburners & Antiques: Magic Stewart 16, times 2!
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Post by Scottscoaled » Mon. Jun. 10, 2019 6:49 pm

The auger diameter is too small for all but the smallest wood chips. It fits into a 2" diameter rigid pipe.

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