Grain Systems PNEG-707GSI - Manual (Page 134)

11. Inside Ladders
134 PNEG-707 12', 18', 24' and 30' GSI Commercial Tower Dryer
Four (4) Auxiliary Ladders (Optional)
Install four (4) auxiliary ladders to inside wall sheets as follows.
Use existing 5/16" x 3/4" galvanized whiz lock bolts and nuts. Prior to installation, verify tightness. Double
nut with second 5/16" whiz lock nut.
1. Bolt first two (2) inside ladder standoffs on the horizontal seam between the top inside wall sheets.
Start in 4
th
bolt hole left or right from edge of sheet. (See Figure 11E on Page 135.)
2. Bolt 4
th
bolt holes in 44" formed ladder section to inside ladder standoffs. (See Figure 11B on Page 133.)
3. Bolt next pair of inside ladder standoffs on next horizontal seam down (directly below first pair).
Join next 44" formed ladder section to first and bolt to inside ladder standoffs.
4. Install remaining three (3) auxiliary ladders on every third vertical channel around inside wall of dryer.
5. Repeat steps to continue installing sections of four (4) auxiliary ladders as dryer sections
are completed.
Placement of Four (4) Auxiliary Ladders
Install first auxiliary ladder to left of same vertical channel as outside ladder (directly under roof access
port). First auxiliary ladder runs from inside top wall sheets, through inside catwalk, to reducer walkway.
Install remaining three (3) auxiliary ladders on every third vertical channel. They run from inside top wall
sheets to inside catwalk.
Install all 44" formed ladder sections so rungs with rough, textured side for
gripping are on top, so climbers do not slip.