198934 Roof Stairs INSTALLATION INSTRUCTIONS.pdf - Westeel

Wall Ladder Assembly Considerations – When mated with a roof stairs, the external ladders, cages and eaves rails
should be assembled as per the assembly instructions contained with those products. However, there are a few additional
requirements as noted below.
1. For 15’ – 54’ Diameter: Bolt on the single ladder extension rung (234098) when assembling the pass through rails to
the top ladder section as shown. The same hardware that is supplied with the ladder package is used. For these bin
diameters, the cage assembly remains as per the instructions provided in the ladder installation manual.
SINGLE LADDER
EXTENSION (234098)
Figure 1
For 60’ – 108’ Diameter: Bolt on the double rung ladder extension (234103) as illustrated below. This double rung
part is an extension of the ladder. The pass through rails (234505), are raised accordingly. For stability both pass
through rails must be secured to the bottom lip of the first roof stair (Figure 4). The support arms (234504) must also
be used as described below. For these bin diameters the top safety cage section only must be extended. See the
illustration for the difference in the top cage section.
54'
60' 108'
60' 108'
Figure 2
Page 13