Rice Lake CLS-420 Technical Manual page 80

CLS-420 Cargo Lift Scale
It is acceptable if the load cell slightly rotates up against the front or back plate of the scale.
Note
8. Remove the bottom hex nuts (#18 and #19) and the bottom spherical washer set (#17).
9. Loosen the hex nut located under the upper block (#6).
10. Loosen the jam nut located on top of the load cell (#9).
11. Loosen the hex nut (#14) located on top of the lower block.
12. Loosen the hex nut (#11) on the lower side of the load cell.
13. Remove the bottom flexure rod (#12) and the top flexure rod (#8) sliding remaining washer sets (#5 and #15) with it.
14. Check the flexure rod threads for smooth operation by running a nut the full distance of the rod, making sure it does
not get stuck anywhere along the way. Clean off any paint using a wire brush and oil.
15. Oil the spherical washers using a standard machine shop oil.
16. Disconnect the load cell cable from the junction box.
17. Loosen cable clips and remove the load cell.
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Figure 4-28. Remove Bottom Nut
Figure 4-29. Remove Flexure Rod with Nuts and Washers
Ensure flexure rod threads
are free of debris and
paint by running a nut the
full distance of the rod.