Specification

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2. Take one of the Double-Hook upper guides and loosely attach it to the angled portion
of the ladder side rail above the mounting rail, hooks pointing down
Pull the ladder slightly away from the mounting rail and slide the Double-Hook upper
guide down so that the lower hook engages firmly onto the mounting rail, this will be
the location of this upper guide on the ladder (Figure 5)
3. Outline the location of this upper guide on ladder side rail (figure 6)
Figure 4