Rice Lake Combination System - Precision Loads On-Board Weighing Systems - Manual (Page 42)

38 Precision Loads On-Board Weighing Installation & Service Manual
Figure 4-38. Body Rest Mount Installed Using PL9000-14 Load Cell
Note
Chassis angles must be sized for the bearing plate spacing of the load cell being used. For example, a
minimum 16 inch (41 cm) length for the PL9000-14.4 load cell.
5. Mount the load cells on the chassis angles along with Groove Lock hardware parts to establish location of
the body angles on the body or hoist chassis subframe. The decision on the location of the body angles
must also consider possible movement of equipment or obstructions on the subframe (example: roll-off
hoist chassis) and strength of the body subframe itself (example: location of cross members). The installer
must provide reinforcing to any body subframe which may require it. Examples of subframe reinforcing
are the addition of frame doubler, additional crossmember straps, gussets to the body structure, etc.
Figure 4-39. Body Rest Installation Example
6. Mark the positions of both the body and chassis brackets at each load cell mounting location. Tack weld
the Groove Lock plate to the underside flange of the body angle bracket at each load cell location. Remove
clamped assemblies.
7. With the body angles removed, final weld the Groove Lock plate (round stock assembly) to the underside
flange of each body angle. Allow to cool.
8. Drill and bolt chassis angles to main truck frame at the marked locations.
Note
Note
Top mounting surfaces of the chassis angles must be flat, clean, bare metal.
9. Position fully unitized (assembled with bearing plates and bolts) load cells on chassis angles and clamp
bearing plates to chassis angles. Remove the load cells from the bearing plates. Weld the bearing plates in
place per the instructions in “Welding Specifications” on page 59. Allow welds to cool.
10. Re-mount the load cells (bolts need only be hand-tight), and the Groove Lock hardware. Position and
clamp the body angles in place for tack welding.
The area where the body angles will be welded to the body subframe must be flat, clean, bare metal.