Fairbanks 12-1492 - 12-1496 A.A.R. Combination Railroad Track/MTS - Manual (Page 47)

04/12 47 50538 Rev. 7
2-U: Junction Box(s)
The A.A.R. Combination Railroad Track / MTS Scale is shipped for installation to a 2500
Series Instrument. As part of that installation, there may be five (5) junction boxes to be
installed in the pit. To provide mounting for these junction boxes, locate the following part that
is shipped with the scale.
Part # QTY Description
55766 5 Bar, Junction Box; 3/4" X 1 1/4" (2 holes tapped 3/8-16).
The Junction Box bars can be welded to cross member at each load cell section. Place the
Junction Box bars in a servicable location.
1: Clean #1, #2, and #3 ground rod end(s) with abrasive to assure a good electrical connec-
tion. Keep all ground straps untwisted, clear of standing water, with a drip loop, and as short
as possible. Secure the strap to the ground rods with the provided clamp and coat with
grease. Cover the connections to protect from condensation.
2-V: Grounding:
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
50538-4 Rev. 2
50538-41
Ground Rod
= Clamp = Terminal
Pit Power Supply
Isolated Ground
Junction
Box Plate
T
C C C
T
T T
T C