Section 4: service & maintenance, General troubleshooting – Fairbanks Aegis Drum Scales User Manual
Page 19

04/10
19 51190 Rev. 2
Section 4: Service & Maintenance
4.1. GENERAL TROUBLESHOOTING
From the following chart, identify the symptom(s) and cause(s) of each malfunction,
solving each issue with an appropriate solution.
SYMPTOM
CAUSE
SOLUTION
Displays stay at zero
1. Load Cell connections faulty.
2. Instrument faulty.
3. Faulty/bad Load Cell
1. Cable replacement.
2. Service Instrument.
3. Test and replace according to
Subsection
4.3.2 and 4.3.3.
Erratic Weights
1. Foreign object around load cells,
ramps, or under platform.
2. Excessive vibration near platform.
3. Instrument faulty.
4. Platform not level within ¼” (3.0°).
5. Surface not smooth enough
(within 1/8”).
6. Faulty/bad Load Cell.
1. Clear the area.
2. Remove the vibration source.
3. Service Instrument.
4. Level the platform surface.
5. Find a smoother surface for the
platform.
6. Test and replace according to
Subsection
4.3.2 and 4.3.3.
Inaccurate Weights
1. Instrument out of span.
2. Instrument not properly adjusted
to zero.
3. Faulty/bad Load Cell.
1. Check and alter per the Instrument
Service Manual.
2. Zero the instrument according to
normal operation procedures.
3. Test and replace according to
Subsection
4.3.2 and 4.3.3.