Fairbanks 12-1492 - 12-1496 A.A.R. Combination Railroad Track/MTS - Manual (Page 33)

04/12 33 50538 Rev. 7
2-P: Leveling Load Cell Flexure Assemblies:
ener Plate
Top Bearing Plate
Upper
Flexure
Base Plate
LEVEL Main Beam
LEVEL
Upper
Flexure
Base Plate
Top Bearing Plate
LEVEL
LEVEL
Load
Cell
Load
Cell
A
B
50538-19A
1: Starting at one end section, lift the main beam slightly from one load cell at a time and
loosen the three screws that secure the flexure to the support assembly block, and note any
space between the flexure and the block. Use a precision level across the flexure and add or
remove shims between the flexure and the block to get best possible level on the flexure and
insure there are no spaces or gaps (see "A" above). Tighten the three screws to torque spec-
ifications.
2: Check that the top bearing plate assembly is level and at right angles to the main beam
web. If adjustment is necessary, install shims only between the main beam's lower flange
and the stiffener plate ( see "B" above). Shims must extend the full length of the bearing
surface.
3: Check that the load cell is vertical and that the top bearing plate is centered on the flexure
wear plate. Adjust if necessary. Ensure the base plates, load cell, upper flexure plate, and
top bearing plate assembly are level to within 1/64” per foot.
4: Continue for each load cell flexure assembly.
5: Providing a suitable power supply to connect to the loadcells, measure and record the
mV/V output from each load cell in the scale. The resulting readings will indicate the current
weight distribution of the scale's deadload among the eight (8) points of support. The outputs
will be greater for number's 3, 4, 5, and 6 because there is physically more deadload weight
upon them.