Grain Systems Tanks PNEG-4135A - Manual (Page 160)

Chapter 8: Accessories
Figure 8-10 Sealing caulk location
D Roof exhauster assembly H Sealing caulk
Assembling the Auto Roof Vent
The following instructions are for assembling the auto-vent. First, check the packing list to ensure all com-
ponents have been shipped. The unit is easiest assembled in the upside-down position as shown in the
instructions.
1. Take all parts out of the shipping box and ensure all parts are present.
2. Turn the roof vent housing assembly (D) upside down.
3. Install a hex bolt(B) through the hole on the side of roof vent housing (D). Install a flange nut (E) to
the hex bolt (B) and tighten.
4. With the curvature facing upward, install the flap assembly (F) into the roof vent housing (D), and
onto the end of the hex bolt (B).
5. Insert another hex bolt (B) through the other side of the roof vent housing (D), and install a flange nut
(E) to the hex bolt (B), between the tab of the flap assembly (F) and the side of roof vent housing (D).
6. Apply a strip of caulking around the three housing sides of the roof vent assembly (D) where it meets
the hold-down angle (A).
7. Place the hold-down angle (A) onto the assembled roof vent assembly (D), with the wide end or long
end of the hold-down angle (A) facing the vent discharge and the short end facing the rear of the
vent.
8. When the hold-down angle (A) is aligned, install #10 self-drilling screws through the roof housing and
into the hold-down angle (A).
160 Pneg-4135A 135 Ft Diameter 40-Series Bin