61
fi g. 3.70
fi g. 3.71
fi g. 3.72
fi g. 3.73
fi g. 3.74
3 - B
RIDGES
Bridge Setups
Swivel Bridge
Counterweight
adapter
Swivel
bridge
Top pivot pin
Bottom pivot
pin
Top plate
Bottom (forked)
plate
Swivel Bridge Counterweight Adapter
(optional)
Installation (cont’d)
Bolt assemblies
Counterweight
bridge
Frame of swivel
bridge
Counterweight
bridge
5-
Slide in the bottom plate of the counterweight adapter around the bottom pivot pin
and align the hole of the top plate with the top pivot pin. Replace the top pivot pin.
6-
Replace the lock bolt of the top pivot pin and tighten to secure.
7-
Secure the counterweight adapter to the frame of the swivel bridge with bolt assemblies
to lock it into position (fi g. 3.74).
8-
Bolt a 5' (1,5 m) square bridge to the counterweight adapter as described in steps 1
through 3 of the installation instructions for a swivel bridge and a 5' (1,5 m) square
bridge on p. 57 of this section.
9-
Install forward cantilever square bridges, as required and allowed (fi g. 3.69, p. 60).
Refer
to
the
Load Capacities
section on p. 80 for the number of bridges allowed in a
confi guration.
10-
Apply the counterweight on the square bridge attached to the counterweight adapter.
For information on the type of counterweight to apply, refer to p. 88 of the
Load Capacities
section.
