VALTIR QuadGuard HS User manual


QuadGuard®is a registered trademark of Valtir, LLC. Part No. 115310
© Valtir, LLC
Valtir.com 1 Revision D November 2022
QuadGuard®HS
The QuadGuard®HS system has been tested pursuant to National Cooperative Highway Research
Program (“NCHRP”) Report 350 specifications. The QuadGuard®HS system has been deemed
eligible for Federal-aid reimbursement on the National Highway System by the Federal Highway
Administration (“FHWA”).
Assembly Manual
15601 Dallas Parkway
Suite 525
Addison, Texas 75001
Warning: The local highway authority, distributors, owners, contractors,
lessors, and lessees are RESPONSIBLE for the assembly, maintenance, and
repair of the QuadGuard®HS. Failure to fulfill these RESPONSIBILITIES with
respect to the assembly, maintenance, and repair of the QuadGuard®HS
could result in serious injury or death.
Important: Important: These instructions are for standard assembly specified
by the appropriate highway authority. In the event the specified system assembly,
maintenance, or repair would result in a deviation from these assembly
instructions, contact the appropriate highway authority engineer.
This manual must be available to the worker overseeing and/or assembling the product at
all times. For additional copies, contact Valtir directly at (888) 323-6374 or visit
Valtir.com/Products/.
The information contained in this manual supersede all previous versions. The instructions,
illustrations, and specifications are based on the latest QuadGuard®HS information available to
Valtir at publication. We reserve the right to make changes at any time. Please visit
Valtir.com/Product/QuadGuard-HS/to confirm the latest revision.

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Table of Contents
Customer Service Contacts ..........................................................................................................3
Important Introductory Notes ........................................................................................................3
Safety Symbols .............................................................................................................................4
Safety Rules for Assembly............................................................................................................4
Limitations and Warnings..............................................................................................................5
System Overview ..........................................................................................................................6
Inspect Shipping......................................................................................................................6
System Components...............................................................................................................7
Foundation/Anchoring.................................................................................................................12
Valtir Approved Adhesive Anchoring System .............................................................................14
Vertical Assemblies...............................................................................................................14
Assembly Cautions ...............................................................................................................15
Horizontal Assemblies...........................................................................................................16
Recommended Tools.................................................................................................................. 17
How to Determine Left/Right ................................................................................................. 19
Measuring the Width .............................................................................................................20
Site Preparation/Foundation .................................................................................................21
Determine Backup and Transition Type................................................................................22
QuadGuard®HS Narrow ............................................................................................................. 23
Narrow Transitions ................................................................................................................23
Assembly Narrow........................................................................................................................25
QuadGuard®HS Wide ................................................................................................................39
Wide Transitions ...................................................................................................................39
Assembly Wide ...........................................................................................................................41
QuadGuard®HS Final Inspection Checklist................................................................................53
Maintenance and Repair............................................................................................................. 54
Inspection Frequency............................................................................................................54
Visual Drive-By Inspection ....................................................................................................54
Walk-Up Inspection...............................................................................................................54
Post-Impact Instructions .............................................................................................................55
Parts Ordering Procedure ...........................................................................................................56

Valtir.com 3 Revision D November 2022
Customer Service Contacts
Valtir is committed to the highest level of customer service. Feedback regarding the QuadGuard®
HS system, its assembly procedures, supporting documentation, and performance is always
welcome. Additional information can be obtained from the contact information below:
Valtir:
Telephone: (888) 323-6374 (USA)
(312) 467-6750 (International)
Contact Link Valtir.com
Important Introductory Notes
Proper assembly of the QuadGuard®HS system is critical to achieve performance that has been
evaluated and deemed eligible by the FHWA per NCHRP Report 350. These instructions should
be read in their entirety and understood before assembling the QuadGuard®HS. These
instructions are to be used in conjunction with the assembly of QuadGuard®HS and are for
standard assemblies only as specified by the applicable highway authority. If additional
information is needed about the QuadGuard®HS, please contact the highway authority that has
planned and specified this assembly and, if needed, contact Valtir Customer Service. This product
must be assembled in the location specified by the appropriate highway authority. If there are
deviations, alterations, or departures from the assembly instructions specified in this manual, the
device may not perform as tested.
Important: DO NOT use any component part that has not been specifically
specified herein for the QuadGuard®HS during assembly or repair.
This product has been specified for use by the appropriate highway authority and has been
provided to that user who has unique knowledge of how this system is to be assembled. No
person should be permitted to assist in the assembly, maintenance, or repair of this system that
does not possess the unique knowledge described above. These instructions are intended for an
individual qualified to both read and accurately interpret them as written. These instructions are
intended only for an individual experienced and skilled in the assembly of highway products that
are specified and selected by the highway authority.
A manufacturer’s drawing package will be supplied by Valtir upon request. Each system will be
supplied with a specific drawing package unique to that system. Such drawings take precedence
over information in this manual and shall be studied thoroughly by a qualified individual who is
skilled in interpreting them before the start of any product assembly.

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Safety Symbols
This section describes the safety symbols that appear in this QuadGuard®HS manual. Read the
manual for complete safety and assembly information.
Symbol Meaning
Safety Alert Symbol: Indicates Important, Caution, Warning, or Danger. Failure
to read and follow the Important, Caution, Warning, or Danger indicators could
result in serious injury or death to the workers and/or bystanders.
Warning: Read safety instructions thoroughly and follow the assembly directions
and suggested safe practices before assembling, maintaining, or repairing the
QuadGuard®HS. Failure to comply with these warnings could result in increased
risk of serious injury or death in the event of a vehicle impact with a system.
Important: Please keep up-to-date instructions for later use and reference by
anyone involved in the assembly of the product.
Safety Rules for Assembly
* Important Safety Instructions *
This manual must be kept in a location where it is readily available to persons who are skilled and
experienced in the assembly, maintenance, or repair of the QuadGuard®HS system. Additional
copies of this manual are available from Valtir by calling (888) 323-6374 or visiting
Valtir.com/Product/QuadGuard-HS/. Please contact Valtir if you have any questions concerning
the information in this manual or about the QuadGuard®HS.
Always use appropriate safety precautions when operating power equipment, mixing chemicals,
and when moving heavy equipment or QuadGuard®HS components. Safety articles including
but not necessarily limited to work gloves, eye/ear protection, safety-toe shoes, silica dust
management systems, and back protection should be used.
Warning: It is the responsibility of the installer to use all safety measures
incorporating appropriate traffic control devices specified by the highway authority
must be used to protect all personnel while at the assembly, maintenance, or repair
site.
Warning: It is the responsibility of the installer to ensure that your assembly
procedure meets all appropriate Occupational Safety and Health Administration
(OSHA) and local standards

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Limitations and Warnings
Valtir, in compliance with NCHRP Report 350, contracts with FHWA approved testing facilities to
perform crash tests, evaluation of tests, and submit results to the FHWA for review.
The QuadGuard®HS system has been deemed eligible for reimbursement by FHWA as meeting
the requirements and guidelines of NCHRP Report 350 TL-3 Plus with an increase speed from
62 mph [100 km/h] to 70 mph [113 km/h]. These tests typically evaluate product performance by
conducting testing pursuant to parameters set forth in NCHRP Report 350 and accepted by
FHWA which include a range of vehicles from lightweight cars (approx. 1800 lb. [820kg]) to full
size pickup trucks (approx. 4400 lb. [2000 kg]) as specified by the FHWA. A product can be
certified for multiple Test Levels. The QuadGuard®HS is certified to the Test Level(s) as shown
below:
Test Level 3 Plus:70 mph [113 km/h]
These FHWA directed tests are not intended to represent the performance of systems
when impacted by every vehicle type or every impact condition existing on the roadway.
This system is tested only to the test matrix criteria of NCHRP Report 350 as approved by
FHWA.
Valtir expressly disclaims any warranty or liability for injury or damage to persons or property
resulting from any impact, collision or harmful contact with products, other vehicles, or nearby
hazards or objects by any vehicle, object or person, whether or not the products were assembled
in consultation with Valtir or by third parties.
The QuadGuard®HS is intended to be assembled, delineated, and maintained within specific
state and federal guidelines. It is important for the highway authority specifying the use of a
highway product to select the most appropriate product configuration for its site specifications.
The customer should be careful to properly select, assemble, and maintain the product. Careful
evaluation of the site lay out, vehicle population type; speed, traffic direction, and visibility are
some of the elements that require evaluation in the selection of a highway product. For example,
curbs could cause an untested effect on an impacting vehicle.
After an impact occurs, the debris from the impact should be removed from the area immediately
and the specified highway product should be evaluated and restored to its original specified
condition or replaced as the highway authority determines as soon as possible.
Warning: Do not assemble, maintain, or repair the QuadGuard®HS until you
have read this manual thoroughly and completely understand it. Ensure that all
Danger, Warning, Caution, and Important statements within the manual are
completely followed. Please call Valtir at (888) 323-6374 if you do not understand
these instructions.
Warning: Ensure that all of the QuadGuard®HS Danger, Warning, Caution, and
Important statements within the QuadGuard®HS manual are completely followed.
Failure to follow this warning could result in serious injury or death in the event of
a collision.

Valtir.com 6 Revision D November 2022
System Overview
The QuadGuard®HS, through crash testing, has been shown to be a potentially reusable, re-
directive, non-gating crash cushion, within NCHRP Report 350 criteria, for hazards ranging in
width from 24” to 90” [610 mm to 2285 mm]. It consists of energy-absorbing cartridges surrounded
by a framework of Quad-BeamTM Panels.
Important: Valtir makes no recommendation whether use or reuse of any
part of the system is appropriate or acceptable following an impact. It is the
sole responsibility of the project engineer and/or the local highway authority
and its engineers to make that determination. It is critical that you inspect
this product after assembly is complete to make certain that the instructions
provided in this manual have been strictly followed.
The QuadGuard®HS system utilizes two types of cartridges in a “staged” configuration and empty
Bays to address both lighter cars and heavier, high center-of-gravity vehicles.
Impact Performance
The 9 Bay QuadGuard®HS systems have successfully passed the requirements stipulated in
NCHRP Report 350, Test Level 3 tests with both the light car and pickup at speeds of 70 mph
[113 km/h] at angles up to 20 degrees.
During head-on impacts, within NCHRP Report 350 criteria, the QuadGuard®HS has been shown
that it compresses rearward and crushes to absorb the energy of impact. When impacted from
the side, it safely redirects the vehicle back toward its original travel path and away from the
hazard.
Inspect Shipping
Before deploying the QuadGuard®HS, check the received parts against the shipping list supplied
with the system to ensure all parts are included.
Important:The Manufacturer’s Drawing Package supplied with the QuadGuard®
HS must be used with these instructions for proper assembly and should take
precedence over these general instructions.
Warning: Do NOT modify the QuadGuard®HS in any way.

Valtir.com 7 Revision D November 2022
System Components
Below is a list of system components to be used in the repair of your particular QuadGuard®HS
configuration. Please call Valtir customer support if you have any questions (p. 3).
Warning: Use only Valtir parts that are specified herein for the QuadGuard®HS
for assembling, maintaining, or repairing the QuadGuard®HS. Do not utilize or
otherwise comingle parts from other systems even if those systems are
other Valtir systems. Such configurations have not been tested, nor have they
been deemed eligible for use. Assembly, maintenance, or repairs using
unspecified parts or accessories is strictly prohibited.
Note: Components are not shown to scale.
Backup, Narrow Tension Strut
Backup, Wide Tension Strut
Backup, Narrow Concrete
* 604741 - 24”
* 604748 - 30”
* 604762 - 36”
* 604785 – 69”
* 604789 – 90”
* 604507 – 24”
* 604508 – 30”
* 604509 – 36”
* Assembly
Narrow Diaphragm Assemblies
Wide Diaphragm Assemblies
625650 - 24”
625651 - 30”
625652 - 36”
607146 – 45.38”
607148 – 48.53”
607150 – 51.68”
607151 – 54.83”
607152 – 57.98”
607157 – 61.13”
607158 – 64.28”
607160 – 70.58”
607163 – 76.88”

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QG HS Diaphragm Assembly Narrow
QG HS Diaphragm Assembly Wide
606793 – 24”
606794 – 30”
606795 – 36”
QG HS 69”
QG HS 90”
607121 – 35.88”
607122 – 39”
607123 – 42.25”
607119 – 26.5”
607120 – 32.75”
607122 – 39”
Belt Nose Assembly Narrow
Belt Nose Assembly Wide
Bumper Assembly
611502 – 24” or 30” Gray
611503 – 24” or 30” Yellow
611504 – 36” Gray
611505 – 36” Yellow
611500 – Gray
611501 - Yellow
605696 – 24”
605697 – 30”
605698 – 36”
605699 – 69”
605700 – 90”
Stud, 3/4x7”, G5
Stud, 3/4x18”, G5
Stud, 5/8x7”, G5
117542
116799
116810

Valtir.com 9 Revision D November 2022
Screw, Flat, 5/8X8 1/2" Wide
Screw, Flat, 5/8X5”,G8, Narrow
Bolt, Hex, 3/4”X4”, G5, G
116879
116878
113567
Bolt, Hex, 5/8”X4”, G5
Bolt, Hex, 1/2”X3”, G2, G
Bolt, Rail, 5/8X2”
113666
113476
003400
Bolt, Hex, 3/8”X3 1/2”, G2
Bolt, Hex, 1/2”X8”, G2
Bolt, Hex, 5/8” x 3 1/2”, G5
113612
113495
113660
Bolt, Hex, 5/8X5”, G5
Bolt, Hex, 3/4”X2”, G8
Nut, Hex 1/2”, G
113667
113555
115939

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Nut, Hex 3/4”
Nut, Heavy Hex, 5/8”
Nut, Rail, Hex, 5/8”
003710
003354
003340
Nut, Heavy Hex, 3/4"
Nut, Hex, 3/8”X1”
Nut, Hex, 5/8”
003704
115960
115970
Washer, Flat 1/2”X1 3/8”
Washer, Lock, 5/8”
Washer, Lock, 3/8”
118009
118100
118092
Washer, Flat, 5/8” X 1 3/4"
Washer, Flat, 3/4"
Washer, Lock, 3/4"
003300
118027
118089
Mushroom Washer
Spring, 6”, Wide
Spring, 1 1/2”, Narrow
617045
117458
117459

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Panel, Side, QG Narrow
Panel, Fender, QG
Clamp, Belt, LMC
611898
611832
606330
Bracket, Cartridge Support
Bracket, Cartridge Support
TS B/U
Hinge Plate, Fender Panel
605446
605447
610172
Tel 1 3/4X1 3/4X12GA, G, 10”
Tel 2X2X12GA, H2S, G, 10”
Locking Bar, Cartridge
Support
615756
615765
611266
Rail Guide, QG HS, G
Monorail Guide
Bracket, Pull-Out
613506
611368
605535

Valtir.com 12 Revision D November 2022
Approved Adhesive
Monorail, Two Bays, QG, G
Monorail, Three Bays, QG, G
118710
611375
611379
End Cap, Monorail, QG, G
Cartridge Assy, Type I
Cartridge Assy, Type II
608136
606027
606029
Foundation/Anchoring
Important: It is the responsibility of the local DOT or appropriate authority to
ensure this assembly conforms to the AASHTO Roadside Design Guide.
Warning: It is the responsibility of the installer to ensure that your assembly
procedure meets all appropriate Occupational Safety and Health Administration
(OSHA) and local standards.
Asphalt Installations
Systems with a Tension-Strut Backup may be temporarily installed in construction zones on
asphalt. Assemblies on Asphalt Concrete (“A.C.”) must provide a minimum of 3” [76 mm] layer
of asphalt over a minimum of 3” [76 mm] layer of Portland Cement Concrete (“P.C.C.”), 6”
[152 mm] layer of asphalt over 6” [152 mm] layer of subbase, or 8” [203 mm] layer of asphalt with
no subbase.
Caution:Only 18” [460 mm] threaded rods, utilizing Valtir approved adhesive,
can be used with (asphalt) foundations. Contact Customer Service for a complete
list of approved adhesives (p. 3).

Valtir.com 13 Revision D November 2022
The QuadGuard®HS system may be installed on any of the following foundations using the
specified anchorage:
Foundation D: Asphalt Only
Foundation: 8” [200 mm] minimum A.C.
Anchorage: Approved adhesive with 18” [460 mm] studs - 16 1/2” [420 mm] embedment
Important: Systems mounted on asphalt must be replaced and mounted on
fresh, undisturbed asphalt if more than 10% of anchors are found to be loose,
broken, or show signs of pull out. If 10% or fewer anchors are damaged, replace
the damaged anchors in the existing asphalt. Anchor bolts used on systems
mounted on asphalt must be inspected every 6 months. See Post Impact
Instructions and Maintenance and Repair instructions on page 54.
Foundation A: Concrete Pad or Roadway
Foundation: 150 mm [6”] minimum depth Portland Cement Concrete (P.C.C.)
Anchorage: Approved adhesive with 180 mm [7”] studs 140 mm [5 1/2”] embedment
Foundation B: Asphalt over P.C.C.
Foundation: 76 mm [3”] minimum asphalt concrete (A.C.) over 76 mm [3”] minimum P.C.C.
Anchorage: Length of anchor required is 460 mm [18”] 420 mm [16 1/2”] embedment
Foundation C: Asphalt over Compacted Subbase (C.S.)
Foundation: 150 mm [6"] minimum A.C. over 150 mm [6”] minimum C.S.
Anchorage: Approved adhesive with 460 mm [18"] studs 420 mm [16 1/2”] embedment
Foundation Specifications
For Foundations A, B, C and D mentioned above:
A. C. (Asphalt Concrete)
AR-4000 A. C. (per ASTM D3381 '83) 3/4” Maximum, Medium (Type A or B) aggregate
Caution: Walk-up inspections are recommended at least once every six
months for installations on asphalt.

Valtir.com 14 Revision D November 2022
Valtir Approved Adhesive Anchoring System
A Valtir approved adhesive anchoring system is required to securely anchor crash cushions. Each
approved adhesive kit contains adhesive, studs, nuts, washers and instructions. Both vertical and
horizontal assemblies are possible using an approved adhesive anchoring system.
Vertical Assemblies
Note: Read all Valtir approved adhesive instructions before starting.
1) Prepare the Concrete Foundation
Warning: Do not allow anchoring adhesive to contact skin or eyes. See material
safety data sheet supplied with adhesive kit for first-aid procedures. Use only in
well-ventilated area. Do not use near open flame.
Warning: Wear gloves and protective eyewear during application.
The studs that anchor the QuadGuard®HS system Backup and/or Monorail sections to the
concrete foundation must be those shipped in the kit or of high strength steel (Grade B7 or
SAE-J429 Grade 5). These studs must be set in minimum 4000 psi [28 MPa] concrete. Allow
the concrete to cure a minimum of seven days before drilling and anchoring studs.
2) Drill Boreholes
Caution:It is the responsibility of the installer to consult OSHA silica
respiratory standard 29 CFR 1910.134 for debris removal from borehole(s)
and use Valtir approved adhesive to achieve optimum tensile strength. Do
not use diamond drill bits for drilling boreholes.
Use the Monorail(s) and Tension Strut Backup as drilling templates. Use a rotary hammer drill
to drill the boreholes 7/8” [22 mm] diameter to the recommended depth. See the approved
adhesive instructions provided with your kit. Check to ensure each borehole is drilled to the
proper depth and aligned with the part to be anchored per chart below.
Anchoring Information
Stud Size: Orientation Bit Size Minimum Depth Torque Medium
3/4”x 6 1/2”
Horizontal
7/8” [22 mm]
5 1/4” [133 mm]
Manufacturer Spec
Concrete
3/4”x 7”
Vertical
7/8” [22 mm]
5 3/4” [145 mm]
Manufacturer Spec
Concrete
3/4”x 18”
Vertical
7/8” [22 mm]
16 3/4” [425 mm]
10 ft-lb [15 N-m]
Asphalt
Important: When mounting on asphalt, initial torque shall be as shown
above. Due to the properties of asphalt, anchors may loosen over time. For
this reason Valtir recommends anchoring to asphalt only at temporary
locations. It is recommended to re-torque anchors in asphalt every six (6)
months to the proper initial torque specified.

Valtir.com 15 Revision D November 2022
3) Clean the Boreholes
Blow the concrete dust from the borehole using oil-free compressed air. Thoroughly brush it
with a 7/8” diameter steel bristle tube brush and then blow it out again. If the borehole is wet,
completely flush it with water while brushing and then blow it clean to remove all water using
oil-free compressed air.
4) Apply Approved Adhesive
Fill the borehole 100% full with adhesive material.
Caution: Fill borehole 100% full so it is even with the pavement surface per
manufacturer’s instructions.
5) Add the Washers and Nuts
Place a flat washer onto the stud then thread a nut on until the end of
the stud is flush with the NUT (Figure 1).
6) Insert Studs in Boreholes and Wait for Adhesive to Cure
Push the stud down through the part to be anchored and into the
borehole. Give the stud several twists in the approved adhesive to wet
the threads.
Caution: Do not disturb or load the stud until the approved
adhesive material has hardened (refer to instructions
supplied with the approved adhesive kit).
7) Torque the Nuts
Once the adhesive has fully cured, torque the nut to the
manufacturer’s recommended values.
Assembly Cautions
1) Steel rebar
If steel rebar is encountered while drilling an anchor bolt borehole, apply one of the following
solutions:
A) Use a rebar drill bit for the rebar only and then switch back to the concrete bit to finish
drilling into the underlying concrete until the proper borehole depth is reached.
Caution: Do not drill through rebar without first obtaining permission to do so
from the project engineer.
B) Drill a new borehole down at an angle past the rebar to the proper depth. Anchor the stud
by completely filling both boreholes with an approved adhesive.
Figure 1
Vertical Application
(Before Applied Torque)

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Horizontal Assemblies
The horizontal approved adhesive kit is the same as the vertical kit.
Caution: Fill borehole 100% full so it is even with the concrete surface per
manufacturer’s instructions.
1) Follow the instructions supplied with your approved adhesive kit
Apply approved adhesive to each anchor per instructions.
2) Add the Washers and Nuts
Put washer and nut on stud so the nut is flush with end of stud (Figure 1 & 2).
3) Insert each Stud with Washer and Nut into Borehole
Push stud through part to be anchored and into borehole. Twist the stud in the approved
adhesive to wet the threads.
Important: The stud should be flush with the top of the nut in both vertical and
horizontal applications prior to tightening (Figure 2).
Caution: Do not disturb or load the stud until the approved adhesive material has
hardened (refer to approved adhesive kit instructions for hardening times).
4) Torque the nuts
Once the adhesive has fully cured, torque nut(s) to the approved adhesive manufacturing
specification.
Figure 2
Horizontal Application
(Before Applied Torque)

Valtir.com 17 Revision D November 2022
Recommended Tools
Documentation
•Manufacturer’s Assembly Manual
•Manufacturer’s Drawing Package
Personal Protective equipment
•Eye/Ear Protection
•Gloves
•Safety Toe Shoes
•Protective Clothing
Cutting equipment
•Rotary hammer drill
•Rebar cutting bit
•Concrete drill bits – 7/8” [22 mm] (Double Fluted)
•Grinder, Hacksaw or Torch (optional)
•Drill
•Drill bits 1/16” through 7/8”
Important:Valtir recommends using double-fluted drill bits to achieve optimum
tensile strength when applying an approved adhesive to the anchoring system
(p.14).
Hammers
•Sledgehammer
•Standard hammer
Wrenches
•Heavy Duty 1/2” drive impact wrench
•1/2” drive Sockets: 9/16", 3/4", 15/16", 1 1/8", 1 1/4"
•1/2” drive Deep Well Sockets: 15/16", 1 1/4”
•1/2” drive Ratchet and Attachments
•1/2” drive Breaker Bar – 24” long
•1/2” drive Torque Wrench: 200 ft-lb
•Box End Wrenches: 9/16", 3/4", 15/16", 1 1/8", 1 1/4"
•Crescent Wrench: 12” [300 mm]
•3/8” Hex Key Wrench

Valtir.com 18 Revision D November 2022
Important: Because every impact is different, Valtir makes no
recommendation whether use or reuse of any part of the system is
appropriate or acceptable following an impact. It is the sole responsibility
of the project engineer and/or the local highway authority and its engineers
to make that determination. It is critical that you inspect this product after
assembly is complete to make certain that the instructions provided in this
manual have been strictly followed.
Miscellaneous
•Traffic control equipment
•Lifting and moving equipment (A lifting device is preferred although a forklift can be
used.) Minimum 5,000 lb. capacity required.
•Air Compressor (100 psi minimum) and Generator (5 kW)
•Long pry bar
•Drift pin 12” [300 mm]
•Center punch
•Tape measure 25’ [7.5 m]
•Chalk line
•Concrete marking pencil
•Steel bristle tube brush for cleaning 7/8” drilled holes
•Rags, water, and solvent for touch-up
Note:The above list of tools is a general recommendation. Depending on specific site
conditions and the complexity of the assembly specified by the appropriate highway
authority, additional or fewer tools may be required. Decisions as to what tools are needed
to perform the job are entirely within the discretion of the specifying highway authority
and the authority’s selected contractor performing the assembly of the system at the
authority’s specified site.

Valtir.com 19 Revision D November 2022
How to Determine Left/Right
To determine left from right when ordering parts, stand in front of the system facing the hazard.
Your left is the system’s left and your right is the system’s right.
Description of a Bay
One Bay consists of one Diaphragm, two Fender Panels, etc. (Figure 3).
Figure 3
9-Bay System Orientation
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