Rice Lake Combination System - Precision Loads On-Board Weighing Systems - Manual (Page 25)

Applications 21
Bolt Locking Tab Plates
To prevent bolt rotation and potential loosening, which could result in a hazardous operating condition, Rice Lake
Weighing Systems supplies underbody load cell kits with stainless steel plates (20 gauge thick) that allow the
installer to bend tabs into position against the bolt hex head. Use a drift punch and hammer to bend tabs in place.
Tabbed plates are recommended for any installation in which bolts are installed facing downwards and are not
torqued to full tightness, such as spring bolts. A serviceable thread locker must always be used when installing all
load cell bolts, whether or not a tabbed plate is also used. See Figure 4-16.
After compressing
springs, bend anti-
rotation plate flush against
flat of hex head bolt
Figure 4-16. Anti-Rotation Tab Plate Installation
Load Cell Position
For load cells with side-mounted output cables (glanded) or integral connectors, position the output cable or
connector to face inwards, and to pass through the gap between the chassis and body subframe. Ensure there is no
contact or rubbing of the cable, connector or strain relief gland to any fixed structure or moving part.
Note
Cable glands are not field serviceable and must never be loosened or removed.
If load cell cable or connector must face outwards, a shroud or protection plate must be installed.
Figure 4-17. Load Cell Position
Bolt Torques
Torque all bolts after heat from welding installation has cooled. See Section 6.1 on page 58 for torque values,
cautions and tightening of body spring bolts.