www.highwayguardrail.com 19 Revised: October 5, 2009
INSTALLING THE STRUT
Complete the following steps when installing the strut:
Note: For All strut installations, the installer must provide a shallow
valley/trough for installation of the strut, since a portion of the angle
strut will be below grade.
INSTALLING THE STRUT WITH HBA™ POSTS/SYTP™
Complete the following steps to install the strut with HBA™
posts/SYTP™:
Step Actions
1.
Place the Angle Strut (PN-33875G for HBA™, or PN-33795G for
HBA™/SYTP™) on the outside flanges of the HBA™ posts or
the SYTP™ at locations 1 and 2. (Use PN-33875G with the
HBA™ posts or the HBA™ post/SYTP™ in a tube. Use PN-
33795G with the HBA™ post/SYTP™.)
Note: The strut can be placed with one of the legs flat on the
ground or with the leg edge on the ground. The strut may
be installed either on the traffic side or the field side of
the posts.
2.
Install a
3
/
4
” (19 mm) diameter x 2
1
/
2
” (63 mm) Hex Head High
Strength Bolt (PN-3717G) in the
13
/
16
” (21 mm) hole of the
HBA™ Post 1 post plates. Place the bolt through the top and
Bottom Post’s post plates and through the strut.
3.
Place a
3
/
4
” (19 mm) Washer (PN-3700G) and a
3
/
4
” (19 mm)
Lockwasher under a
3
/
4
” (19 mm) Hex Nut on the end of the bolt
to secure.
4.
Tighten the nuts to a snug position.
(The designer does not
recommend a torque requirement.)
5.
Select Option A, Option B, or Option C below, for installing the
strut on post 2:
Option
A
For HBA™ post at location 2
1. Insert a
3
/
4
” (19 mm) diameter x 3” (75 mm) Hex
Head High Strength Bolt (PN-3718G) through the
strut, two or three ¾” (19 mm) Washers (PN-
3701G), and the
13
/
16
” (21 mm) holes of the
HBA™ post plates of Post 2. (The two or three
washers allow the strut to pass over the
3
/
8
” (10
mm) bolt head.)
2. Place a
3
/
4
” (19 mm) washer and a
3
/
4
” (19 mm)
Lockwasher (PN-4699G) under a
3
/
4
” (19 mm)
Hex Nut (PN-3704G) on the inserted bolt.
3. Tighten the nuts to a snug position. The designer
does not recommend a torque requirement for
the HBA field assembly.
Option
B
For 6’ SYTP™ only at location 2
1. Place a
7
/
16
” (11 mm) Round Washer (PN-4389G)
on the two (2)
7
/
16
” (11 mm) diameter x 1
1
/
2
” (38
mm) Hex Head High Strength Bolts (PN-4390G).
2. Place the bolts in the two slotted holes of the strut
and the yielding diameter holes of the SYTP™.
3. Place a Lockwasher (PN-4699G) under a
7
/
16
”
Hex Nut (PN-3704G) on the ends of the inserted
bolts.
4. Tighten the nuts to a snug position. (The designer
does not recommend a torque requirement.)
Option
C
For 3’ 6
5
/
8
” SYTP™ in tube at location 2
1. Place a
3
/
4
” (19 mm) Washer (PN-3701G) on
diameter x 9
1
/
2
” (240 mm) Hex Head High
Strength Bolt (PN-3718G).
2. From the embankment side, insert the bolt
through the strut, foundation tube, Spacer (PN-
4161), and the SYTP™.
3. Place a washer under a nut on the end of the
inserted bolt.
4. Tighten the nuts to a snug position. (The designer
does not recommend a torque requirement.)
Note: Do not over tighten the bolts and deform the
tubes, this will complicate post replacement.
Revised: March 2010
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