Rice Lake RL2200 Series Stainless Steel - Manual (Page 9)

RL2200 Load Cell Mounting Kit Installation 5
3. Make necessary preparations to the mounting surfaces. A 1" sub plate is recom-
mended to ensure a good mounting surface.
4. The mounts are normally factory assembled. If mounts are not already assem-
bled, complete the assembly by placing the rocker pin and boot in the load cell
hub socket, place the top plate on top with the rocker pin in the top plate socket,
and install the shoulder screws through the top plate into the base plate risers.
Torque the shoulder screws to 100 ft-lb. Tighten the shoulder screw set screws.
5. Lift and block the vessel to the same height as the assembled mounts.
6. Remove the block from one support point and slide that mount into position.
7. If the mount is being fitted under the leg of a vessel, verify that the leg’s center
line passes through the center of the top plate (through the center of the load cell).
8. Lower the corner or side of the vessel carefully onto the top plate. The force of a
vessel weighing several tons can damage a load cell if dropped only a fraction of
an inch.
9. With the top plate positioned approximately level, mark holes for attaching the
top plate to the vessel’s mounting surface. Drill holes and attach top plate loosely
to vessel with suitable fasteners.
10. Repeat steps 4-10 for the mounting assemblies at the remaining corners or sides.
11. Verify that there is no initial misalignment between the base plate and top plate
and that the rocker pin is in the center of the hole in the top plate.
12. Attach the base plates to the foundation using suitable anchors for concrete or by
bolting or welding to a steel structure or subplate. Verify that the base plates are
as level as possible. They should be fully supported. Shimming is not recom-
mended.
13. Check that the top plates are no more than ±.5° out or level. Shim if necessary
and fully tighten mounting bolts.
14. To achieve equal load distribution, final height adjustments can be made with
shims between the top plate loading bracket and the weighing vessel. The varia-
tion in load among the cells should be no more than 20%. The load distribution
can be checked accurately by exciting each load cell in turn and measuring the
output with a voltmeter..