STEP 4 ASSEMBLE EXTERIOR CASTINGS CONTINUED
Set Right End with air tube attached in place,
sliding the channels in the End over the edges of
the Front and Back Plate (FIG. 7). Move the
wooden brace so the two center slots fit over
the Baffle and Right End. The channels in the
Right End hold the Front and Back Plates in
place.
FIG. 7 Position Right End
STEP 5 FIREBACK AND SECONDARY AIR TUBE INSTALLATION
On the inside of the Back Plate, there are two
ribs which make up half of the Secondary Air
Tube (See FIG. 11 below).
Cement along the top of the upper rib and the
front of the lower rib on the Back Plate (FIG. 8)
Cement the edges of the two ribs on the Lower
Fireback (FIG. 9).
Place the Lower Fireback into the appropriate
bottom channel and lean it back towards the
back plate (FIG. 10). Tap the Lower Fireback
to the right into the appropriate channel in the
Baffle.
Make sure that all the cement on the
Lower Fireback comes in contact with cement
on the ribs of the Back Plate. The cement will
seal the upper and lower ribs, forming the
Secondary Air Tube.
FIG. 8 Cement Channels in Back Plate
FIG. 9 Back of the Fireback
FIG. 10 Position Lower Fireback
