57
fi g. 3.57
fi g. 3.58
fi g. 3.59
3 - B
RIDGES
Angle adjustment
1-
Make sure that the adjustment rod is installed on the appropriate side of the swivel
bridge to achieve the desired confi guration. If required, remove the bolt assemblies
at both ends of the adjustment rod and reinstall on the other side of the swivel bridge
(fi g. 3.58).
2-
Position the swivel bridge installation at the desired angle using the adjustment
nuts
(fi g. 3.59). Refer to the angle sticker located under the trap door on the bridge deck or on
the pivot pin at the bottom of the bridge (fi g. 3.50, p. 56) to make sure the installation
is at an appropriate angle. A swivel bridge confi guration may only be installed at an
angle between 0 and 45 degrees or at exactly 90 degrees towards the front.
Bridge Setups
Swivel Bridge
Square bridge adapter
5' (1,5 m) bridges
Swivel bridge
Installation of the swivel bridge and the 5' (1,5 m) square bridge
1-
Using the tapered bushings (fi g. 3.51), align the swivel bridge with the adapter installed
on the motorized unit. If the welded stoppers on the bottom trusses of the adapter
and of the bridge prevent proper alignment, the swivel bridge is not properly positioned.
2-
Attach the swivel bridge to the adapter using
six
bolt assemblies: one
5/8" x 5 1/2" (
GR8
) hex bolt, one 5/8" (
GR8
) lock washer and one 5/8" (
GR8
) nut in
each of the four corner tapered bushings (fi g. 3.50 and fi g. 3.51, p. 56) and in
either
one
of the tapered bushings (left or right) at the
top and bottom
in the middle
of the bridge, fi g. 3.50 and fi g. 3.52, p. 56). Tighten all bolt assemblies to a torque of
120 lb-ft (163 N-m).
3-
Repeat steps 1 and 2 to attach a 5' (1,5 cm) square bridge to the swivel bridge and
to install any subsequent 5' (1,5 cm) square bridge, as required and allowed. Refer
to p. 87 of the
Load Capacities
section for the number of bridges allowed in a swivel
bridge
installation.
Bolt assemblies
Adjustment nuts
