Trinity Highway QuadGuard M Wide, Product Description Assembly Manual

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TrinityHighway.com 37 Revision D March 2021
Maintenance and Repair
Inspection Frequency
Inspections for QuadGuard ® M Wide are recommended as needed based upon volume of traffic
and impact history. Visual Drive-By Inspections are recommended at least once a month. Walk-
Up Inspections are recommended at least once a year.
Visual Drive-By Inspection
1) Is there is evidence of an impact? If so, perform a walk-up inspection.
2) Are Cartridges properly seated on the Support Brackets? All damaged Cartridges must
be replaced.
Warning:
See Cartridge placement instructions on page 20.
3) Steel Nose is properly attached and 32 1/8” above grade (p. 34).
4) Note the location and condition of the QuadGuard ® M Wide and the date of visual drive-
by inspection.
Walk-Up Inspection Checklist
Clear and dispose of on-site debris.
Clear and remove excessive dirt from around the Monorail and Diaphragm feet.
Bolts are tight and rust free.
Anchor bolts are securely anchored.
Diaphragm Legs are straight.
All Mushroom Washer Assemblies are flat and properly seated through Fender Panel slot.
Fender Panels and Transition Panels should nest tightly against the system.
Cartridges have not been damaged and are properly seated on their Support Brackets.
To ensure intended speed characteristics, partially crushed Cartridges (due to low speed
impacts) must be replaced.
Make all necessary repairs as described above. See Post-Impact Instructions for more
information on next page.
To determine if a product should be replaced or is potentially reusable, a trained engineer
experienced in highway products and directed by the DOT, or other appropriate local
highway authority, must be consulted.