Rice Lake Combination System - Precision Loads On-Board Weighing Systems - Manual (Page 30)

26 Precision Loads On-Board Weighing Installation & Service Manual
Figure 4-22. Kingpin Reinforced
Load Sensor Mounted
Outboard of the 5th Wheel
Kingpin Skid Plate
1” Thick
Load Sensor / Body
Mounting Bracket
Assembly
Kingpin Skid Plate
Gussets
Load Sensor Mounted
Outboard of the 5th Wheel
Kingpin Skid Plate
REINFORCED SKID
PLATE PLACEMENT
THICK PLATE
MOUNTING
PLACEMENT
NOTE: Access to all mounting
bolts for maintenance is important.
Figure 4-23. Kingpin Installation
4.3.2 Trailer Body Preparation
General
Brackets are generally required to mount load cells to the subframe of the body. These brackets are typically
welded in place, however the installer must ensure that the trailer subframe is acceptable for weld-mounting prior
to welding to any frame.
Note
In the case of aluminum body subframes, the installer must glove the aluminum subframe with a bolted steel
liner to which the load cell angles will be welded. Typically, such glove sections will use 3/8 inch (10 mm)
material and will be professionally lined with materials that prevent electrolysis between steel and aluminum.
Trailer subframe crossmembers are commonly located in the area of the kingpin plate. If existing crossmembers
will interfere with the recommended positioning of the load cells as described herein, then re-positioning of the
crossmembers may be required to allow for correct positioning of the load cell mounting angles.
Since crossmembers provide rigidity to the trailer subframe, it is important for the installer to locate load cell
mounting brackets close to the crossmembers if possible, thus enhancing the structural strength of the installation.
Longer mounting angles to the body subframe add to added installation rigidity.