Trinity Highway MATT, Assembly Manual

Page: 27 / 44

TrinityHighway.com
February 2022
STEP 7
MATT™ 12 Gauge Slotted Intermediate
Guardrail with Fin-3, 6’-3” [1.905 m], Post 4-5
PARTS INSTRUCTIONS
C 628337A 2 EA
Reference: SS-6288
1. Assemble the MATT™ 12 Gauge Slotted Intermediate Guardrail With Fin-3
(Part C), 6’-3” [1.905 m] as shown above for both sides using specified
hardware (Parts J, W, Z, EE).
2. Ensure the MATT™ 12 Gauge Slotted Intermediate Guardrail With Fin-3
installed between Posts 4 and 5 is lapped to the outside of the MATT™ 12
Gauge Transition Guardrail With Fin-4 and fins are positioned upstream .
3. Ensure the MATT™ Backing Plate (Part J) is on the outside of the MATT™
12 Gauge Slotted Intermediate Guardrail With Fin-3.
4. Assemble all hardware loosely ensuring bolt is seated for this step.
5. Guardrail height to be 31” [787 mm], (+1”, -0”) [+25 mm, -0 mm] above
finished grade.
J 628338G 2 EA
W 118614G 12 EA
Z 3361G 12 EA
EE 118615G 12 EA
Use only Trinity Highway parts that
are specified herein for the MATT™
for assembling, maintaining, or
repairing the MATT™. Do not
utilize or otherwise commingle
parts from other systems even if
those systems are Trinity Highway
systems.
WARNINGS
Ensure the MATT™ 12 Gauge Slotted Intermediate Guardrail With
Fin-3 installed between Posts 4 and 5
is lapped to the outside of
the MATT™ 12 Gauge Transition Guardrail With Fin-4.
Ensure the MATT™ Backing Plate
is on the outside of the MATT™
12 Gauge Slotted Intermediate Guardrail With Fin-3.
Ensure the fins are positioned upstream as shown.
Failure to follow these warnings could result in serious injury or
death in the event of a vehicle impact with the system.
POST 5
POST 4
Note: The assembly shown
for one side of the post is
required for both sides of
the post.
NOTE: Part EE is a
5/8” diameter, 1/4”
thick flat washer.
Assemble all hardware
loosely ensuring bolt is
seated for this step.