Rice Lake SURVIVOR Paramounts HE Medium Capacity - Manual (Page 14)

10 Paramount Installation Guide
Figure 13 Preferred Orientation of Load Cell
If the position of the vessel in relation to surrounding structures is critical, as in
scales mounted in pits, the vessel must be placed in the correct position before
welding or bolting the top plates and base plates. This installation is described in
Section 4.2.8.
The top and base mounting plates may be bolted or welded to the vessel and the
foundation. After welding or bolting, all base plates themselves are strong enough
to take rated load without relying on additional stiffness provided by the support
structure. Therefore, the welding only has to be strong enough to support antici-
pated side loads or lift-off loads.
4.2 Detailed Installation Procedures
4.2.1 Installing Base Plates
Remove all mounts from their packaging material and identify the three different
types as discussed in Section 1.4. Position the fixed pin, side stop, and free sliding
mounts on their support surfaces as discussed in Section 2.0. Check with a level
on top of the base plate to insure that the plate is level within the limits specified
in Section 3.4. If necessary, wedge shims under the base plate.
When satisfied that the plates are positioned correctly, press the base plate firmly
against the foundation and tack weld. Check that the plate has not changed posi-
tion, then make the final weld. Bolting rather than welding is also acceptable.
When welding plates with attached load cells, place the welding
ground cable as close as possible to the welding location to prevent
the welding current from passing through the load cell. Protect
both the load cell and its cable from weld splatter using cover plates or shields. If
possible, the load cell should be removed from the base plate during welding. Do
not allow excessive heat to be conducted to the load cell as this may damage the
strain gauges. If necessary, weld in several passes, allowing time for the assembly
to cool between passes.
The mild steel mounts are zinc plated with yellow chromate. Before welding these
mounts, grind off the plating in the immediate area of the weld. After welding is
CAUTION