Table 3-6. Unit Troubleshooting Table. -- Continued
Test or Inspection
HOURMETER DOES NOT WORK.
Remove all jewelry such as rings, dog tags, bracelets, etc. If jewelry or tools contact positive electrical circuits, a
direct short may result. Damage to equipment and injury or death to personnel may occur.
Check for 24 Vdc at wire 322 on hourmeter (1) (refer to FO-3).
If 24 Vdc is present at wire 322, replace hourmeter (1) (Para 12-23).
If 24 Vdc is not present at wire 322, check wire for continuity. Replace dash harness as necessary
If exciter relay (2) is not functioning correctly, replace relay (Para 12-15).
Check for a good ground at hourmeter (1).
If a good ground is not present, replace dash harness (Para 12-39).