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Revision B June 2013
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4.
The SS180 TMA
®
is intended to support its own weight and dissipate the kinetic energy
of errant vehicles per NCHRP 350 criteria. Do not drag the TMA or place anything on its
top or damage will result. Do not sit, stand or lean on any part of the TMA (See Figures
5 & 6).
Figure 5
Figure 6
5. Before raising or lowering the TMA, the operator shall be fully trained as to its proper
operation. All operators shall fully understand the contents of this Manual prior to
operating the system. The operator should never stand under the TMA when it is
raised, or attempting to lower it.
6.
Folding the TMA provides the best maneuverability and driving characteristics. It is
advisable, during restricted city driving and high-speed travel, to have the TMA folded to
its storage position. Refer to local agency policies as required for additional guidance.
Unfold the system either before, or as soon as possible after, entering a job site or
beginning shadow vehicle operations. It is required that the support vehicle be stopped
for TMA folding and unfolding
.
7. Be sure all persons are standing clear before folding or unfolding the TMA. Be sure the
system is stopped in full folded position before allowing anyone directly behind the
folded system.
