Casing Assembly Model FLE Assembly
3-18 750-192
Figure 3-40. Caulk and silicone drum wall opening
Figure 3-41. Insulate, caulk and silicone steam vent
11. Install Drum Packing and Seal
Plates
• Pack LDS moldable insulation (872-680)
around the upper and lower, front and rear
drums to fill the void. Push it in toward the
backing plate, compressing the insulation
tightly. The insulation should be packed to
within 1" of the outer wall.
NOTE: Use the excess pyrobloc from the
cutout of the burner door to pack around the
drums.
NOTE: Do the following three steps after
section 16 has been finished.
• Apply a layer of silicone caulk (872-420) to all sur-
faces in contact with the metal.
• Install the drum seal cover plates and secure them
with the self drilling screws (842-1402).
• Insulate the steam vent with blanket insulation. Seal
it with silicone caulk and secure the cover plate to
form a strong seal.
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drum wall opening