S.R.Smith ROGUE GRAND RAPIDS Assembly And Installation Instructions Manual page 14

21) To secure the ladder to the slide screw into the previously drilled holes (one per
side rail) a (#11) 5/16" x 1" lag screw, a (#12) 5/16" x 7/8" flat washer and a (#13)
5/16" x 3/4" rubber washer tightening to 8 ft.-lbs of torque. See Figure 20.
CAUTION: DO NOT OVER TIGHTEN.
22) Level as close as possible the exit runway surface horizontally from side to side,
approximately 9" up from the exit end, using a small level as shown in Figure 21.
Figure 20
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Figure 21