STC Smartscan NG2, Manual

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May 2021, SmartScanNG² User's Guide for Wayside Enclosure Components, EUD-2018086-00 Rev.3
14 Check if each transducer body just touches the bracket.
The fixture should be snug against the top and gauge of both rails. This may be
impossible if the transducer body is less than 1-9/16 inches (3.97 centimeters) below
the top of the rail or if the transducer body isn't parallel to the top of the rail.
15 If a transducer body doesn't just touch the bracket:
a Loosen the nuts holding the transducer body to its mounting plate.
b By sliding it up and down, adjust the transducer body to the proper height.
c Tighten each hex nut with a 9/16-inch torque wrench to a torque of 12 to
15 foot-pounds (16.3 to 20.3 newton-meters) .
Don't exceed a torque of 15 foot-pounds (20.3 newton-meters). Doing so can
weaken or break a bolt, requiring the bolt to be replaced.
d Wait until 20 more trains have passed over the site and then return to step 1 .