Grain Systems PNEG-1853 - Manual (Page 21)

4. 12' Outside Catwalk Installation Instructions
PNEG-1853 12' Tower Dryer Fan Style Catwalk Assembly 21
Installing Handrails (GT1-2038-12O)
1. Install the handrail (GT1-2038-12O) to the catwalk vertical support (GT1-2037-BS) using 5/16"-18 ZN
U-bolts (S-10171) and 5/16"-18 YDP grade 2 nuts (S-3611) to tighten the handrail with vertical post.
(See Figure 4T.) (See Page 22.)
Figure 4T