49
fi g. 3.24
fi g. 3.25
fi g. 3.26
fi g. 3.27
3 - B
RIDGES
Installation as a forward extension
As Forward / Back Extension Bridge
1-
Using a rough terrain forklift or a crane, lift the fi rst multi purpose insert bridge (
MPI
) and
align the top and bottom parts with the motorized unit, as shown in fi g. 3.24. Make
sure that the dedicated wall side (fi g. 3.19) is turned towards the face of the work.
2-
Assemble the top part of the
MPI
bridge to the motorized unit using four 1" x 2"
long
(
GR5
) bolt and nut assemblies through the outer assembly sockets (fi g. 3.19,
p.
48).
Do not tighten the bolt and nut assemblies yet
.
3-
Using four sets of bridge link plates and pins (
TYPE 1
link plates, fi g. 3.27), attach the
bottom part of the bridge to the motorized unit (fi g. 3.24, p. 49).
4-
Tighten the nut and bolt assemblies
(4) at the top of the bridge to 100 lb-ft (136 N-m)
of
torque.
5-
Lift and align the top and bottom parts of the second
MPI
bridge with the fi rst
MPI
bridge installed. Assemble the
top part
of the bridges using two 1" x 3 1/2" long (
GR8
)
bolt assemblies and the
bottom part
of the bridges using two 1" x 2" long (
GR5
)
bolt and nut assemblies.
6-
Tighten all the nut and bolt assemblies
(4) at the top and bottom of the bridges to
100 lb-ft (136 N-m) of torque.
7-
Repeat steps 5 and 6 to continue installing as many
MPI
bridges as is required and
allowed. For more information on the types and number of bridges allowed in a
confi guration, refer to the
Load Capacities
section on p. 80.
8-
If required, repeat steps 5 and 6 to install the
MPI
bridge in the back of the setup
where a counterweight must be applied (fi g. 3.26). Refer to the
Load Capacities
section on p. 80 for more information about counterweight requirements in a
forward / back extension confi guration.
9-
Once the installation is complete, install the appropriate guardrails. Refer to p. 91 of
the
Accessories
section for more information on the installation and use of guardrails.
First MPI bridge
Connector angle
To face of work
Forward extension
Required link plates
TYPE 1
Second MPI bridge
Motorized unit
Position of pins for
Type 1 link plates
Multi Purpose Insert Bridge (
MPI
)
Bridge Setups
MPI bridge for
counterweight
Installation as a back extension
1-
Follow steps 1 through 8 of the installation procedure for a forward extension. Make
sure to install the bridges with the dedicated wall side turned
away
from the face of
the
work.
2-
Once the installation is complete, install the appropriate guardrails. Refer to p. 91 of
the
Accessories
section for more information on the installation and use of guardrails.
