Rice Lake RoughDeck BDP with Portability Option - Manual (Page 16)

12 RoughDeck BDP Installation/Operation Manual
6.3 Load Cell Replacement
Lift the scale with a chain and remove foot, then remove the defective load cell. Disconnect load cell cable from
the junction box and cut cable ties. When the cable is freed, pull cable out of the scale frame channels.
Figure 6-1. Load Cell Assembly
Follow the steps below to install new load cells.
1. Lay out the four load cells near the corners where they are to be installed.
2. Thread the cable from each load cell in the frame and into the junction box according to the wiring
diagram in Figure 6-2.
Note that in Figure 6-2 both the scale and the junction box are viewed from the bottom. To verify correct load
cell/junction box terminal matching, see the numbers on the terminals inside the junction box and the corner
numbering diagram in Figure 6-4 13.
Figure 6-2. Bottom View of Scale
3. Check that the threaded holes for the load cell screws are free of debris. Use compressed air to blow out
holes if necessary.
4. Position load cells with alignment arrows pointed up toward the deck and loosely install the hex head cap
screws provided, as shown in Figure 6-1. If the base is used with an access ramp, position the load cell to
maintain the dimension shown in Figure 6-3. With the torque wrench, tighten all bolts to 75 ft-lbs.
1
3 4
2
Junction
Box