Rice Lake RoughDeck FXB Flexure Lever Floor Scale - Manual (Page 17)

Service Information 13
6.0 Service Information
The following sections describe various troubleshooting and replacement parts information.
6.1 Troubleshooting
Table 6-1. Troubleshooting Table
Problem Probable Causes
Shift Error Center of flexure is offset from the center line
Corners are not shimmed tightly to the floor
Nose-iron on power lever too high or too low
Pivot heads need shimming
Erratic Readings Bent flexures or cable assembly
Center leveling bolts not down far enough, or down too low
Corners are not shimmed tightly to the floor
Ground shield not connected to cannon plug or meter shield
Loose connection in the junction box
Non-linear Weight Reading Center flexure is offset from the center line
Damage to the load cell
Misaligned flexure or cable assembly
Nose-iron on power lever too high or too low
Pivot heads need shimming
Corner Error Corners are not shimmed tightly to the floor
Loose gripper
Misaligned flexure or cable assembly
Pivot heads need shimming
Zero Change Corners not shimmed tightly to the floor
Damaged load cell
Live assembly touching the dead assembly
Loose gripper
Misaligned flexure or cable assembly
Shipping block has not been removed during unpacking
Obstruction under the load bridge (probably at the corner)
6.2 Load Cell Replacement
Replacement load cells can be ordered from Rice Lake Weighing Systems according to the table in Section 6.3. To
replace a load cell in an FXB follow the steps listed below.
1. Remove the deck assembly.
2. Loosen the bottom locking nut (see Figure 3-1 on page 7).
3. Remove the signal cable access hole cover plate. Pull wire rope from the plate and pass it through base.
4. Remove bottom lock nut from wire rope and back off upper lock nut. Using a hex allen wrench on the
flathead bolt, and an adjustable wrench to hold the load cell body, remove the load cell.
5. Remove the wire rope from the defective load cell and screw it into the new load cell to approximate
position it was in the old cell.
6. Insert the wire rope into the nose iron hold and turn the lower nut on loosely.
7. Hold flat washer in place, and screw flathead bolt into top of the load cell. Tighten the flathead bolt
securely using a hex allen wrench and adjustable wrench.
8. Tighten the lower lock nut on the wire rope against the nose iron (finger tightening only). Lock upper nut
down against the nose iron.
9. Pass the signal cable through the access hole and follow directions from Section 3.2
10. Replace the deck assembly and recalibrate according to Section 4.