February 2021 |
Page
18
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Product & Installation Manual: Sentry Barrier™
KEEPING
NZ SAFE
Installation Tolerances
The Sentry Barrier™ is an engineered safety
device. To obtain optimal performance is it
important to install all components of the
system to within the allowable tolerances stated
below (also in Appendix D and Appendix E).
Particular care must be taken to ensure;
>
Suitable horizontal alignment and verticality
of the line posts.
>
Consistency in the vertical height of the line
posts.
>
Orientation and height of the terminal end or
crash cushion.
Sentry Barrier™ has to be installed at 790 mm
to the top of the post. A vertical height tolerance
of ±25 mm is acceptable for Sentry Barrier™
post. The top of the W-Beam is to be positioned
10 mm above the top of the Sentry Barrier™
post with a tolerance of ±5 mm. The Sentry
Barrier™ Post laterally is constrained to ±15 mm
tolerance. It is of upmost importance for these
tolerances to be adhered to in order to ensure
safe function of the Sentry Barrier™.
