Rice Lake RL1800 Series Stainless Steel - Manual (Page 6)

6
• Are the supporting legs adequately braced so they will not spread when the
system is fully loaded?
• Does the supporting structure have the necessary strength to prevent
flexing when the system is fully loaded?
• Is there attached equipment such as skirting, venting, or piping which is
likely to cause binding or lack of flexibility?
2. Determine where to position the module and in which direction it should
be oriented.
3. Assemble the module and load cell according to the drawings shown at the
beginning of this section. For load cells using 1/2" mounting bolts, torque
to 65 FT-LBS. Torque 3/4" mounting bolts to 295 FT-LBS. Adjust the
center loading bolt on all modules to give the lowest overall profile height,
while leaving at least a 1/8" gap between the load cell and the upper support
loading block.
4. Lift and block the vessel to the same height as the assembled modules.
5. Lift one corner or side of the vessel enough to slide that module into place.
6. If the module 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’s load hole).
7. Attach the top plate by bolting. Do not fully tighten because shimming may
be necessary to level.
8. Repeat steps 5, 6, and 7 for the remaining modules. The vessel should now
be supported on the modules alone.
9. If necessary, move the vessel to its final position. Verify that there is no
initial misalignment between the base plate and top plate by lifting the
vessel slightly at each support point in turn. This will also indicate if the
load is evenly distributed on all modules. Shim if necessary (this only
applies to systems utilizing more than 3 modules).
10. Attach the base plates to the foundation using anchor bolts for concrete or
by bolting or welding to a steel structure. Verify that the base plates are no
more than
±
0.5
°
out of level. Shim as necessary.
11. Check that the top plates are no more than
±
0.5
°
out of level. Shim if
necessary and fully tighten the bolts.
12. The load distribution can be more accurately checked by connecting each
load cell to the junction box and indicator in turn and measuring the output
with a voltmeter. To verify wiring scheme, check the installation manuals
for the junction box and indicator. The variation in load among the cells
should be no more than 20%. Shim if necessary.