3 trimming paired sections – Rice Lake SURVIVOR OTR Steel Deck User Manual
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OTR Truck Scale Assembly Instructions
8.3
Trimming Paired Sections
Now that all individual load cells are trimmed for equal output, pairs of load cells on opposite sides of the scale
must be trimmed for equal sectional output. This process is called section trimming.
1. Park the loaded weight cart in the middle of the scale and directly over an imaginary line connecting an
end pair of cells (1 and 8 in Figure 7-4). Record the indicator reading.
Figure 8-4. Trimming Paired Section 1:8
2. Move the weight cart directly over the next paired cell section (2, 7 in Figure 3) and record the indicator
reading. Do the same for the last two paired sections (cells 3, 6, and 4, 5).
Figure 8-5. Trimming Paired Sections 2:7, 3:6 and 4:5
3. Choose the lowest reading of the four as your reference section, which is not adjusted. Using the section
potentiometers, reload the other three sections in turn and trim the sections to match the reading of the
reference section. Recheck section readings a second time as the adjustment is made can be somewhat
interactive.
4. As a final verification of the load cell trimming, do a final corner check. Place a 1000 lb weight on one
corner of the platform and record the raw-count reading on the indicator. Move the weight to all of the
other corners in turn and record those readings. The readings should be within .1% of each other.
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