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Revision D November 2022
13) Checking the System Assembly
At this point, recheck to ensure that all fasteners are properly tightened throughout the
system (anchor bolts, etc.). Check all Fender Panels. If they do not fit tightly against the
underlying Panel, system realignment may be necessary (Figure 71).
Caution:
To prevent excessive vehicle interaction during wrong-way impacts, all
exposed Fender Panel gaps on the bidirectional side of the system (where traffic
travels from the rear to the Nose of the system), including the last Fender Panel
attached to the transition, should not exceed
1.00” [25 mm]
(Figure 71).
14) Cartridge Placement
To complete the assembly of the QuadGuard
®
HS, place the appropriate Cartridge in each
Bay of the system as shown in Figure 72. The first two Bays should not contain Cartridges.
Type 1 Cartridges are placed in Bays 3 and 4; Type 2 Cartridges are placed in Bays 5
through 9.
Warning:
Placing a Cartridge in the first or second Bay, or placing a Cartridge in
the wrong Bay may result in the unacceptable crash performance as described in
NCHRP Report 350.
TYPE II CARTRIDGES 5-9
TYPE I CARTRIDGES 3-4
DO NOT PLACE
CARTRIDGES HERE
FENDER PANEL
UNDERLYING FENDER,
TRANSITION, EXTENSION
OR SIDE PANEL
MAXIMUM GAP = 25 mm [1”]
Figure 71
Wide System Fender Panel Gap
Figure 72
Cartridge Placement
