Pictorial: The DF520 Stoker Base and Boiler

Pictorial: The DF520 Stoker Base and Boiler

PostBy: stoker-man On: Mon Dec 31, 2007 7:30 pm

Pictorial: The DF520 Stoker Base and Boiler, Final Assembly

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

CLICK ON ANY PICTURE FOR A LARGER VIEW

NONE OF THE PICTURES SHOW THE JACKET, WHICH SURROUNDS THE ENTIRE BOILER/BASE ASSEMBLY


1stoker-mounting-plate.jpg
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9542592 Stoker mounting plate

The stoker fan housing is bolted to the mounting plate. The assembly spacer ring is positioned between the stoker fan housing and the stoker mounting plate with the flange facing up and outward. This flange will hold the equipment hood in place. Using four 3/8 X 1 ¾” bolts, the assembly is fastened to the stoker mounting plate and then mounted in the base as shown in a subsequent picture.

The stoker can be mounted on either side of the base, depending upon the location of the coal bin.
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1-spacer-ring.jpg
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Spacer ring installed, proper direction of hood flange
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assembly-spacer-ring.jpg
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9536410-1 Assembly spacer ring
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1boiler on base stoker side.jpg
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The installed stoker mechanism. The damper assembly is shown above the stoker and is used for the optional oil burner kit.

The next steps would be to install the air pipe, the burner pot assembly and the cleanout rod and lever.

All these steps are detailed in the post: Pictorial: Combining of the Stoker and Burner Pot assemblies.

Click link below and scroll down to the pictorial and explanations.
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1burner-end-pipe-insertion-.jpg
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The burner end pipe is now inserted into the burner pot assembly with the series of drilled holes, in the pipe, facing upward towards the boiler. (In this picture, they are shown facing downward) The notch in the pipe is aligned with the roll pin, and fastened with the two set screws.

The burner end worm can now be inserted through the pipe and gooseneck and attached to the clutch assembly with the cotter pin.
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1boiler-on-base-bin-feed-si.jpg
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The bin side plate is placed in position to support the pipe.
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1bin-side-plate.jpg
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9542596 Bin side plate
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bin-pipe-collar.jpg
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9536409 Bin pipe collar

The bin feed pipe collar, with 21” of rope gasket underneath and wrapped around the pipe, is secured to the bin side plate with three self-tapping screws. The rope gasket is necessary to seal all air leaks around the pipe.
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Baffle-plate.jpg
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9542994-2 Baffle plate, 2 required per unit
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1boiler-on-base-fire-door-s.jpg
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The boiler is set upon the base. The boiler baffles are shown in the rear of the boiler. There is another cast iron baffle at an angle above the boiler baffle plates, not shown in the picture.
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cast-iron-baffle.jpg
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9541331 Cast iron baffle
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1rear-panel.jpg
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9542594 Rear panel
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1boiler-on-base-coil-side.jpg
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The rear panel is installed onto the base.
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1-ash-can-guide.jpg
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9542610 Ash tub guide
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1-ash-can.jpg
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35591 Ash tub
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1-ash-pit-door.jpg
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7042598 Ash pit door
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1-ash-pit-door-handle.jpg
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73319 Ash pit door handle
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1gear-oil.jpg
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9433463K Gear oil

Before installing the mechanism hood, the gear oil reservoir is filled to a level about 3/8" above the bottom of the lowest gear level. See the operators manual on the efm website. www.efmheating.com
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1-hood-installed.jpg
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7051846 Mechanism hood installed
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1-fire-door.jpg
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7052197 Fire door
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1-boiler-putty.jpg
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39104 Boiler Putty
Boiler putty is applied around all panels, any cracks, and any area where air could infiltrate or escape.
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1-boiler-water-conditioner.jpg
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9535472K Steam Boiler water conditioner
Water conditioner is recommended for all steam boilers
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Boiler-water-conditioner.jpg
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38109 Hot Water Boiler water conditioner
Water conditioner is recommended for all hot water boilers
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Aquastat-well.jpg
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73240 Aquastat well

Installed into the boiler.
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stoker-man
 
Hand Fed Coal Boiler: 1981 efm wcb-24 in use 365 days a year
Coal Size/Type: Anthracite/Chestnut
Other Heating: Hearthstone wood stove

cron