25
not completely compress the spring. If
there are insuffi cient threads exposed
to fully tension the carrier cable, pull
more carrier cable through the saddle
clips on the tension rod and repeat the
procedure. When the correct carrier
cable tension is reached, tighten the jam
nut against the tensioning nut. Cut off
excess cable just below the lower saddle
clip.
C. INSTALLATION OF BB-7 BOLT-ON
BOTTOM BRACKETS:
Bottom Bracket Installation:
See Figure 26 for a typical installation of
the BB-7 bottom brackets. The bottom
bracket should be positioned to allow
users safe access when connecting or
disconnecting from the system. The
bottom bracket must be mounted in-line
(vertically) with the top bracket. The
6100035 and 6100040 bottom brackets
are designed to be connected to the
structure using a DBI-SALA or customer
supplied stand-off support. Customer
supplied stand-off supports must be capable of withstanding the loads specifi ed in section 2.3 and must
be compatible with the LAD-SAF
®
system.
Weld-on Stand-off Installation:
Install the SO-2 stand-off support as
shown in Figure 26. See section 3.2 for
welding recommendations. The stand-
off must be perpendicular to the pole
surface and in-line with the carrier cable.
Angle Leg and Round Leg
Stand-off Installation:
See Figure 27 for the installation of
round and angle leg stand-off supports.
Install stand-off supports using the
hardware provided. Do not substitute
other fasteners. Torque 3/8 inch
fasteners to 20-25 ft.-lbs (27.1-33.9
N-m). Install bottom bracket to stand-
off support using 1/2-inch fasteners
provided. Torque 1/2-inch fasteners to
40-45 ft.-lbs (54-61 N-m).
Carrier Cable Tension Adjustment:
Figure 26 shows the assembly of the
tension rod to the bottom bracket
and carrier cable. Loosely clamp
the saddle clips around the carrier
cable. Slide the tension rod down the carrier cable and through the hole in the bracket until suffi cient threads
are exposed to allow the installation of the tension indicator, washers, and nuts. Remove slack in the carrier
cable by pulling the cable though the saddle clips. Tighten saddle clips to 35 ft.-lbs (47.5 N-m). Tighten the
tensioning nut until the ring on the tension indicator is sheared off. A small amount of grease on the tension
rod threads will reduce the effort required to tension the carrier cable. If there are insuffi cient threads exposed
to fully tension the carrier cable, pull more carrier cable through the saddle clips on the tension rod and repeat
the procedure. When the correct carrier cable tension is reached, tighten the jam nut against the tensioning
nut. Cut off excess cable just below the lower saddle clip.
Figure 26 - Installing Bottom Brackets and
Weld-on Stand-off
BB-7 Bottom Brackets
and SO-2 Stand-Off Installation
1-1/8” (2.86 cm)
Figure 27 - Installing Angle Leg & Round Leg Stand-offs
