Service Information
25
8.3
Load Cell Replacement
Replacement load cells can be ordered from Rice Lake Weighing Systems. To replace a load cell, 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 8-2. Load Cell Assembly
Follow the directions given below to install new load cells.
Lay out the four load cells near the corners where they are to be installed. Thread the cable from each load cell
through the conduit tubing in the frame and into the junction box according to the wiring diagram in Figure 8-3.
Note that in Figure 8-3 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 8-5 on page 26.
Figure 8-3. Bottom View of Scale
Check that the threaded holes for the load cell screws
are free of debris. Use compressed air to blow out
holes if necessary. Position load cells with alignment
arrows pointed up toward the deck and loosely install
the hex head cap screws provided, as shown in
Figure 8-2. If the base is used with a pit frame or
access ramp, position the load cell to maintain the
dimension shown in Figure 8-4. With the torque
wrench, tighten all bolts to 75 ft-lbs.
CELL
4
CELL
3
CELL
2
CELL
1
1
4
2
3
