Trinity Highway QuadGuard M Wide, Product Description Assembly Manual

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TrinityHighway.com 26 Revision D March 2021
5) Attach Monorail Guides
Attach Monorail guides to Diaphragm as follows:
Insert 3/4X2” G8 hex bolt through Monorail guide and Diaphragm with a shim placed
between them and oriented as shown in Figure 21. Secure with 3/4” lock washer and 3/4”
hex nut (typical 4 places). See the Diaphragm Assembly drawing supplied with the system.
Repeat process for each Diaphragm.
6) Attach Diaphragms
Orient the widest Diaphragm so that the front face of the Diaphragm shape faces toward
the Nose of the system as shown in Figure 22. The widest Diaphragm must be attached
closest to the Backup with each subsequent Diaphragm being progressively narrower.
Important:
Slide the widest Diaphragm all the way to the Backup to ensure the
system is able to collapse properly during impact. Once verified, slide the
Diaphragm forward to 36” [914 mm] in front of the Backup.
Orient and slide all other Diaphragms onto Monorail and position each approximately as
shown in Figure 23.
Figure 21
Monorail Guide Attachment
Figure 22
Diaphragm Orientation
Figure 23
Diaphragm Spacing
SHIM
Bay 2
Bay 3
Bay 1
Nose
1 st DIAPHRAGM
3/4 LOCK WASHER
DIAPHRAGM
3/4 LOCK NUT
3/4X2 G8 HEX BOLT
MONORAIL GUIDE
TOWARD NOSE
BACK
FRONT
QUAD-BEAM
36” [914 mm]
DIAPHRAGMS
TYPICAL
FRONT FACE OF BACKUP
MONORAIL