STC SmartScanIS, User Manual

Page: 113 / 391

EUD-2016026-00 Rev.2, SmartScanIS User’s Guide for Union Pacific, 14 January 2021
113
7 If this is a Type III wheel scanner, disconnect the heater wiring plug.
8 Store the cover-and-module assembly in a safe place until you replace it.
9 Centered between the ties and on the rail closest the bungalow (aka wayside
enclosure), place the mount so that the moveable track clamp extends under the rail
and toward the center of the track.
10 Tighten the inner nut (that is, the clamping nut) by hand.
This should hold the mount in place.
11 Using a short-handle 1-1/2-inch wrench, tighten the clamping nut to a torque of 48 to
50 foot-pounds (65.1 to 67.8 newton-meters) .
Don’t exceed a torque of 50 foot-pounds (67.8 newton-meters). Doing so can
cause failure of the mount.
12 Using a short-handle 1-1/2-inch wrench, tighten the locking nut to a torque of 48 to 50
foot-pounds (65.1 to 67.8 newton-meters) .
Don’t exceed a torque of 50 foot-pounds (67.8 newton-meters). Doing so can
cause failure of the mount.
At this point, your work should look like this.
On the side of the mount are a large hole and two socket-head-cap screws. The
longest screw is holding a ground lug and an internal-tooth washer.
For the Type II wheel scanner, the large hole is on the right side of the mount
(2100-701) as you face the track.