Fairbanks 6020 Series Titan Motor Truck Scale - Manual (Page 17)

50745 17 03/10 Rev. 5
A. Scale Maintenance
1. Check for accumulations of solid material under the scale which may affect the
accuracy, i.e., ice, frozen mud, debris.
2. Have the customer clean under the platform regularly.
3. Inspect load cells for damage to the ends/cables, check cups and O-rings for
damage.
4. The load cell bearing cups should be inspected, cleaned and greased periodically.
5. Inspect and adjust all checking to proper tolerances.
B. Mechanical Faults
1. Check all clearances around the scale for any obstructions or interference with the
movement of the platform.
2. Check all check bolt clearances, both with and without a concentrated load over
each section, individually.
3. Check all load cells for plumb and level.
4. Inspect the boxes for leaks; the interior should be clean and dry. If there is moisture
inside, clean, then dry it out thoroughly. Check all connections at the terminal
blocks.
C. Replacing a load cell
1. Remove power from the instrument.
2. Lift the scale using a proper sized and rated hydraulic jack(s) at the corner(s) close
to the defective cell location.
3. Check upper and lower receiving cups, and O-rings for damage. Replace as
necessary and reapply grease.
4. Insert the new cell into the upper receiving cup & position the anti-rotation pin.
5. Carefully lower the hydraulic jack(s) until the cell is set into the lower cup.
6. Remove the cover of the sectional controller, then loosen the gland bushing to free
the cable. Remove the old cell wires and connect new cell wires in the sectional
controller. Latch the cover. Tighten all gland nuts with a wrench to secure.
7. Test and adjust scale as necessary.
Section 5: Maintenance