Installation Manual : X-TENSION 350 Median
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December 2018
/ Page 14
Step 9 - Attach Impact Head
Place Impact Head on upstream end of rail 1 and attach using 8 standard splice bolts with nuts
on traffic face (Figure 20).
Hint
: Place bottom two bolts first then use guardrail pin bar to lever
head up snug onto rail.
Bolt head and rail 1 to post 1 using the supplied M16 x 50mm guardrail post bolt. Use a 50mm
x 50mm washer under the M16 small nut on the inside of post 1 (Figure 21).
Figure 20. Attach Impact Head to rail 1
Figure 21. Bolt head and rail 1 to post 1 with
washer
Step 10 - Place the Cables
Push the cables under the steel strap on the Ground Strut (Figure 22) and forward through the
holes at the top of the anchor. Lay the cables out parallel to the guardrail, downstream from
the anchor.
Ensure that bottom cable (closest to road) has half the thread protruding through the anchor,
as shown. Ensure the top cable has the nut wound on a least two turns past the end of the
thread (Figure 23).
Figure 22. Push cables under steel strap
Figure 23. Thread the nuts as shown
on Ground Strut
