Osburn AC01343 - Manual (Page 7)

7
5
(for models with full grill)
To install the plate with the fold in the middle (D), you should first put the hook
screws (G) as shown below.
Install the plate (D) as shown below. Please note that the plate doesn’t
completely block the air flow and the opening should be at the top when installed
on the stove. Secure the plate with the two nuts (F) provided with this manual
using a 7/16" wrench.