Sperian MILLER Vi-Go, Руководство пользователя

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9
U s e r I n s t r u c t i o n s - E n g l i s h
5.1 Installation of Top Bracket Assembly
Mounting
Plate
Washer
Fastener
Cap
Fastener
U-Bolt
Fig. 1a
Fig. 1d
Fastener
Washers
Mounting
Plate
Bolt
Fig. 1b
Shown with Extra
Rung Clamp Assembly
to reduce the loads
transmitted to each
ladder rung.
Fig. 1c
This installation configuration ►
is only permitted with the 5 ft.
(1.5m) top bracket assembly
and limits the number of users
on the system to one (1).
The top bracket assembly may be installed to
extend above the ladder to allow workers to
step safety onto the platform without disconnect-
ing from the lifeline. It is recommended to be
mounted at the center of the ladder for ease of
use and access, but can be installed toward the
side of the ladder if required.
For typical installation of the 5 ft.
(1.5m) top bracket assembly, refer to
Figure 1a. This installation configura
-
tion will accommodate up to four (4)
users simultaneously. The 7 ft. (2m)
and 10 ft. (3m) top bracket assemblies
are installed as shown in Figure 1b.
[
Note: All systems using the 10 ft.
(3m) top bracket assembly are lim-
ited to two (2) users.]
An extra rung clamp assembly may
be used in the installation of the top
bracket to lower the loads transmitted
to each ladder rung (see Fig. 1c).
For systems limited to one (1) user,
the 5 ft. (1.5m) top bracket may be
installed with two rung clamp assem-
blies (see Fig. 1d). Ensure the
ladder will withstand the loads be-
tween the two rungs.
1. Place the top bracket against the
rungs of the ladder at the desired
height (see either Fig. 1a or 1b). In-
stall bottom rung clamp assembly first.
For 5 ft. (1.5m) bracket: Place U-bolt around the
rung of the ladder and through the holes provided at
the bottom of the bracket.
For 7 ft. (2m) or 10 ft. (3m) bracket: Place bolts
through the holes provided at the bottom of the
bracket and through mounting plate on opposite side
of ladder rung as shown.
Install washers and torque fasteners to 20 plus or
minus 2 ft. lbs.
WARNING: The bottom U-clamp must be installed
correctly or the bracket may slip under load.
2. Continue to hold bracket against the rungs of the
ladder. Install rung clamp assembly by placing U-bolts
around the rung of the ladder and inserting through the
mounting plate. Install washers and torque fasteners
to 20 plus or minus 2 ft. lbs. Repeat procedure for
remaining rung clamp assemblies.