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Fairbanks 12-1492 - 12-1496 A.A.R. Combination Railroad Track/MTS User Manual

Page 14

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04/12

14

50538 Rev. 7

1-F: Ground Rods:

Ground rods are essential in providing protection to the electronic components and loadcells
from both lightning surges and static discharges. Pit ground rods shall be tied to the founda-
tions steel reinforcement rod (rebar) prior to pouring, and shall protrude 4 inches above the
pit floor.
Ground rods for approach rails shall be installed in the approach rail cut-outs and tied to the
rebar assembly. Fairbanks provides the three ground rods located in the pit as part of the
standard foundation kit. The two ground rods in the approach must be provided by others.

There are five (5) rods with the locations specified as below:

One (1) ground rod at each end, in the approach rail-cuts, for approach rail grounding. *
One (1) ground rod at each end, in the pit, for steel weighbridge grounding. *
One (1) ground rod at the pit load cell conduit location for the pit power supply. *

The following drawing shows correct placement of ground rods.

1-G: Load cell Base Plates:

The Load cell base plates are the foundation upon which the scale structure rests, and their
level, accurate position is basic to the entire structure. Base plates must be installed at proper
height and in the same plane. All base plates must be level within 1/64” per foot. All pier bolts
must have enough height to allow vertical adjustment of the base plate's, but not so high as
to interfere or to have insufficient depth into the pier.

* Fairbanks provides the three (3) ground rods located in the pit as part of the standard

foundation kit. The two (2) ground rods in the approach must be provided by others.

Top View of Scale

#2

#4

#5

#3

#1

= Ground Rod

In Pit Floor

In Pit Floor

In Pit Floor

Conduit

In approach rail cutout

Supplied by others

In approach rail cutout

Supplied by others

#4 & #5 Ground Rods Not supplied or Installed by FAIRBANKS

50538-4