Rice Lake Floor Scales - SURVIVOR FB Series Electronic Flexure Base - Manual (Page 9)

Appendix 5
4.0 Appendix
4.1 Troubleshooting
4.2 Load Cell Replacement
1. Remove the deck assembly (see section 2.1 on page 2).
2. Loosen the lock nut on the shock-stop bolts shown in Figure 4-1 and turn them down against the angle
until finger-tight. This locks in the correct lever height for the load cell.
Problem Possible Cause
Zero shift • Improper shimming under base corners.
• Loose fastener.
• Crooked flexures.
• Obstruction under live section.
• Damaged load cell or indicator.
Unstable readings • Improper shimming under base corners.
• Load cell cable ground-shield not connected.
• Moisture in load cell or signal cable.
• Crooked flexures.
• Obstruction under live section.
• Indicator configured inappropriately.
• Damaged load cell or indicator.
Different corner readings • Improper shimming under base corners.
• Loose fastener.
• Crooked flexures.
• Obstruction under live section.
• Corner correction shimming required.
Non-linearity • Primary lever too high or too low.
• Central flexure misalignment.
• Crooked flexures.
• Obstruction under live section.
• Damaged load cell or indicator.
Readings differ when same
weight is placed on different
sides of deck
• Central flexure misalignment.
• Improper shimming under base corners.
• Primary lever too high or too low.
• Obstruction under live section.
• Corner correction shimming required.
Table 4-1. Troubleshooting