Component replacement steps, Rocker column load cell replacement – Fairbanks Tundra Series Truck Scale User Manual

Page 46

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Section 6: Service & Maintenance

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51193 Revision 5

6.2. COMPONENT REPLACEMENT STEPS

6.2.1. Rocker Column Load cell replacement

1. Remove power from the system at the instrument.
2. Lift the scale using a proper sized and rated hydraulic jack under the closest to

the "defective" cell location.

3. Disassemble the strain relief device
4. Remove the defective load cell.
5. Check and replace the upper and lower receiving cups and O-Rings if damaged.
6. Apply a small amount of grease on the top and bottom of the new load cell, then

insert into the upper receiving cup.

7. Gently lower the scale assembly, ensuring proper placement of the load cell into

the lower cup.

8. Remove the SSC/Junction Box Enclosure Cover.
9. Loosen the gland bushing to free the cable.
10. Disconnect the defective load cell from the SSC, noting the wire color code.
11. Wire the new load cell into the SSC/Junction Box.
12. Tighten all gland nuts.
13. Reinstall the cover, double-checking the seal as the clamps fasten to the box.
14. Re-apply power to the instrument.
15. Test and adjust the scale, and then calibrate it as necessary .

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