T. O. 35C2-3-442-2
P-9-TM-457-35
TM-07464A-35
TM 5-6115-457-34
Table 2-3. Troubleshooting (Continued)
PROBABLE CAUSE
MALFUNCTION
CORRECTIVE ACTION
GENERATOR SET (Continued)
6. Generator voltage
a. Defective dc relay
a. Test relay (para-
fails to build up.
assembly, A5 field
graph 6-87 or 6-107).
flash relay K5, in
mode I or mode II relay
box.
b. Defective or improper-
b. Repair or adjust switch
ly adjusted speed
(paragraph 8-46 or 8-51).
switch (S51).
c. Test and replace exciter-
c. Defective exciter-
regulator if defective
regulator A10 and All.
d. Defective (shorted) cur-
d. Test and replace if defec-
rent transformer C T4,
tive (paragraph 6-154).
CT5, or CT6.
e. Defective generator.
e. Test and repair if defec-
tive (paragraph 7-2).
7. Generator voltage
a. Defective control box
a. Test and repair if defec-
does not respond to
relay assembly A4.
tive (paragraph 6-15).
adjustment of voltage
adjusting rheostat
b. Defective exciter-
b. Test and repair if defec-
R2 .
regulator A10 and A11.
tive (paragraph 6-75).
8. Generator output
a. Defective exciter-
a. Test and replace if defec-
voltage erratic; fre-
regulator A10 and A11.
tive (paragraph 6-75).
quency is stable.
b. Defective current
b. Test and replace if defec-
transformers CT4,
tive (paragraph 6-154).
CT5, or CT6.
c. Defective generator.
c. Test and repair if defec-
tive (paragraph 7-2).
Change 3
2-35
