STC SmartScanIS, User Manual

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14 January 2021, SmartScanIS User’s Guide for Union Pacific, EUD-2016026-00 Rev.2
9 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.
10 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.
11 At the trackside, check all scanner-mounting bolts on all tracks.
12 If all scanner mounts aren't snug against the gauge side of the rail, fix this problem
before proceeding.
If you need to tighten a scanner's clamping nut or locking nut, don't exceed a torque
of 50 foot-pounds (67.8 newton-meters). Doing so can cause failure of the
mount.
13 From under all scanners, remove ballast that could damage the scanners during train
passage.
14 Remove all obstructions to the scan path of each scanner.
9.2 Checking the Bungalow Components
To check the correctness of the installation of the bungalow components:
1 If the radio antenna and the shielded temperature probe haven't been mounted to the
outside of the bungalow, mount them.
Chapter 8 - Installing the Bungalow Components tells how to install the radio
antenna and the shielded temperature probe.