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9
X-Tension - Tangent Installation Instructions
Step 2 – Installing Posts 6- 2
Install posts 6 to 2 at standard highway rail
spacing (1905mm: 6 ft 3 in), to the correct
height.
All posts should be the same height
from ground level throughout the entire sys-
tem.
Posts #6 to #3 are either standard “I” beam
posts
OR
timber CRT posts. Post 2 is either
the Special “I” beam post or a timber CRT (see
parts identification photo).
Posts may be directly driven, or in stiff soils
a 150mm (6 in) diameter hole drilled, and the
post then driven into the hole. The post may
also be placed in an oversized augured hole
but care must be taken to ensure the backfill is
properly compacted.
Hint:
Offset Post 3 back from the string line
40-50mm (up to 2 in) to make it easier to push
rail 1 and Slider Panel over rail 2.
When driving steel posts, ensure that a driving
cap with timber or plastic insert is used to pre-
vent damage to the galvanizing on the top of
the posts.
Ensure that Post 2 has the post bolt
holes
on
the side nearest the rail (
notches
go to the back-
side as shown and are only used on the median
application (Figure 2).
Bolt the blockout to the post at post 3,
prior to attaching to the rail (Figure 3).
Figure 1. Pull a string line with the desired offset.
Figure 2. Notches go to the backside.
Figure 3. Bolt the blockout prior to attaching the rail.
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