Advertisement
5. Align the holes of a triangular mounting bracket with
the holes on a respective handle section. Place a #10-
24x1-1/2" bolt through each set of holes and fasten each
with a #10-24 nut with nylon lock insert. Tighten the bolt
to 16-18 in-lbs until snug to surface (see Diagram #5).
Be careful not to over-tighten the bolt or tube may be
crushed. Repeat with the other handle section.
6. The ladder as packaged is designed with lower mount
pads that are intended to mount to the rear wall below
the rear wall bend line. With the ladder handles resting
on the roof, it can be determined if the ladder will need to
be modified to align with any backer location(s).
If there is an intended backer location that the ladder
must be shortened in order to align to, place the lower
portion of the ladder on the lower portion of the rear wall
and align the pads with the backer area. Now adjust the
angle of the lower ladder portion to be as near parallel to
the lower rear wall as possible. Place a loose standoff
assembly between the rear wall and the lower ladder
section to maintain proper spacing from the rear wall.
When viewed from the side, the upper ladder rails
should intersect the lower ladder rails.
Measure the distance from the top of the top step on the
lower ladder portion to a point ¾" below where the tubes
intersect. Mark the lower rails at this location. This is
the lower rail measurement.
Subtract the lower rail measurement from 9-5/8". The
difference is the upper rail measurement. Identify the
upper ladder step that is just above the tube intersection
location.
Mark the upper rail measurement distance
from the bottom of this step on onto the upper rail. If the
mark ends up at or above the tube intersection location,
that mark is too short and should be disregarded. A new
mark should be made ¾" above the tube intersection
location.
Advertisement
