Lindsay Transportation Solutions Sales and Services, Inc
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5
X-Tension Introduction (continued)
Limitations and Warnings
The X-Tension Guardrail End Terminal has been rigorously tested and evaluated per the
recommendations in the NCHRP 350 guidelines for terminals and crash cushions. The impact
conditions recommended in NCHRP 350 are intended to address typical in–service collisions.
When properly installed and maintained, the system is capable of containing and re-directing
impacting vehicles in a predictable and safe manner under the NCHRP 350 impact conditions.
Vehicle impacts that vary from the NCHRP 350 impact conditions described for guardrail end
terminals may result in significantly different results than those experienced in testing. Vehicle
impact characteristics different than or in excess of those encountered in NCHRP 350 testing may
result in system performance that may not meet the NCHRP 350 evaluation criteria.
Safety Statements
General Safety
All required traffic safety precautions should be complied with. All workers should wear required
safety clothing (high visibility vests, steel capped footwear, gloves, hard hats, safety glasses etc.)
All underground services must be located before installation of any posts.
Only Authorized trained personnel should operate any machinery. Where overhead machinery is
used, care must be taken to avoid any overhead hazards.
Gloves should be worn at all times. Particular care should be taken to avoid galvanizing spikes.
X-Tension Safety Statements
All installers must be well clear of post driving machinery when in use.
Avoid placing hands or fingers in and around moving parts when components are being lifted and
manoeuvred into place. (i.e. around splice holes, etc.) permeable
The cables should be fitted by one person only. Other workers should stand clear to avoid being
caught in moving cables.
Securely fasten the impact head and rail before turning the friction plate.
The friction plate should be turned manually with a crow bar and extension handle. Do not attempt
to turn it with the assistance of machinery. Ensure crow bar is securely held while the 4 locking
bolts are tightened.
X-TENSION
®
SYSTEM