CONE ASSEMBLY
Next, the damper door ring assembly should be
fastened to the cone. Note that the damper
door ring assembly has a top — where the
door-restraining cable is
permanently attached
— and a bottom (where the cable spring is held
in place for shipment by a rubber band). Take
the damper door ring assembly,
making sure
the doors open downward
, and insert it at an
angle into the cone as shown in Figure 9. The
top end with the door- restraining cable
permanently attached should be opposite the
drain hole in the cone. Once the entire ring
assembly has been placed inside the cone,
level the ring and align the pre-drilled ring holes
with the corresponding overlapping holes in the
cone. From the inside of the assembly, place a
1/4” X 1-1/4” bolt through the holes in the 3-
o'clock and 9-o’clock positions of the ring
(locating the drain hole at the 6-o’clock
position) and fasten with two 1/4” whiz-lock
nuts. Continue fastening the door assembly to
the cone using two 5/16” X 1/2” self-drilling
screws: one adjacent to the drain hole
(bottom), and one on the opposite side (top) of
the cone. See Figure 10.
Page 5
The discharge cone consists of four cone quarter panels. The
panels used for the top and sides of the cone are identical.
The bottom cone panel has a 3/4” drain hole located in the
middle of the panel towards the small diameter end. Begin
construction by finding the bottom cone quarter panel and one
of the other panels (side panel). Place these two panels such
that the edge of the side panel overlaps the bottom panel and
the holes on the overlapping edges of the two panels are
aligned, with the larger cone diameter down. Using top hole
and the middle 3 overlapping holes in the panels (skipping the
2nd and bottom set of holes), fasten the cone panels together
using four 1/4” X 3/4” bolts pushed
from the inside out
, and
four 1/4” whiz-lock nuts. Repeat this process for the third and
fourth panels until the cone is completed. Figure 7 shows the
cone assembly at 3/4 completion.
When assembling the last panel, it
may be difficult to place the last 1 or
2 bolts into the last panel joint.
These last 1 or 2 bolts may be left
out until the cone is mounted as
described on the next page.
To prevent rainwater leakage, the top panel should overlap the side quarter panels, and
both side panels should overlap the bottom panel. See Figure 8 for details. Tighten the
fasteners in the middle holes securely, but only finger-tighten the hardware in the top set
of holes at this time.
A handle mounting hole is located near the center of the Top and Side Panels. Insert
three 1/4” X 3/4” bolts — one for each panel — pushed
from the inside out
, and fasten
a 1/4” whiz-lock nut on each. These will serve as the Handle Mounting Studs.
Side Panels
Top Panel
Bottom Panel
Figure 8
–
Cone Panel Overlap
Figure 7 — Cone Assembly at 3/4 Completion
Top Hole
Middle
Holes
Door-Restraining
Cable End
Drain Hole
Figure 9 — Damper Ring Insertion
