ARMY TM 9-6115-464-34AIR FORCE TO 35C2-3-445-2NAVY NAVFAC P-8-624-34Table 2-2. TROUBLESHOOTING (CONTINUED)MALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTIONStep 2. Defective undervoltage, short circuit (K-13) or overload relay (K-14).Replace defective relay assembly (para. 3-89).NOTESee DC schematic diagram on left engine cover door for location of relays.Step 3. Defective contactor switch S3.Step 4.Step 5.Step 6.Step 7.Step 8.Step 9.Check switch S3. Replace if defective.Defective main load contactor (figure 3-100).Repair or replace main load contactor (para 3-84).Defective short circuit relay K13.Check relay K13. Replace if defective (para. 3-89).Defective overload reload relay K14.Check relay K14. Replace if defective (para. 3-89).Defective reverse power relay K15.Check relay K15. Replace if defective (para. 3-89).Defective undervoltage relay K11 (Precise sets only).Check relay K11. Replace if defective (para. 3-91).Defective under-frequency relay K12.Check relay K12. Replace if defective (para. 3-91).Step 10. Defective permissive paralleling relay K16.Check relay K16. Replace if defective (para. 3-91).NOTESee DC schematic diagram on left engine cover door for location of relays.18. GENERATOR TERMINAL VOLTAGE DROPS WHEN LOAD IS APPLIED.Step 1. Defective voltage regulator assembly (figure 3-130).Repair voltage regulator assembly (para. 3-92).2-11
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