P-9-TM-457-35
T.O. 35C2-3-442-2
TM-07464A-35 TM 5-6115-457-34
Table 2-3. Troubleshooting (Continued)
MALFUNCTION
PROBABLE CAUSE
CORRECTIVE ACTION
GENERATOR SET (Continued)
a. Defective short circuit
a. Remove and test relay
16. Short circuit indi-
cater DS3.
relay (K13).
17. Under voltage indi-
a. Test and replace if defec-
a. Defective current
ator DS4 (precise
transformers CT4.
tive (paragraph 6-154).
CT5, or CT6.
generator sets).
b. Defective exciter
b. Test exciter regulator
regulator.
c. Defective generator.
c. Test generator
18. Reverse power indi-
a. Adjust or repair if defec-
a. Defective or improp-
ator DS5 (in par-
erly adjusted utility
tive (paragraph 8-135 thru
allel operation).
governor.
8-140).
b. Defective governor
b. Repair linkage
linkage.
c. Defective precise gov-
c. Test and repair if defec-
ernor actuator (precise
tive (paragraph 8-110 thru
generator sets).
8-115).
d. Defective governor con-
d. Test and repair if defec-
trol unit (precise gene-
tive (paragraph 6-202).
rator sets).
19. Over voltage indi-
a. Defective exciter
a. Test exciter regulator
cater DS6.
regulator.
Change 3
2-39
