Grain Systems PNEG-1875 - Manual (Page 26)

4. 24' Outside Catwalk Installation Instructions
26 PNEG-1875 24' Tower Dryer Fan Style Catwalk Assembly
Installing Planks at Jack Pole Locations
Once catwalk is lifted above the jack poles, install the planks at jack pole locations from top using
5/16"-18 x 3/4" YPD grade 8 or grade 8.2 bolts (S-4303) and retainer nuts (090-1709-6).
(See Figure 4Z.)
Figure 4Z
1. Insert the retainer nut (090-1709-6) to the rounded edge of the plank slot and slide it to the proper
position as shown in the detail O of Figure 4AA .
2. Place the following plank over the installed plank and bolt to the retainer nut (090-1709-6) using
5/16"-18 x 3/4" bolt (S-4303) as shown in the detail P of Figure 4AA .
Figure 4AA