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Page Title:
Table 2-2. TROUBLESHOOTING (CONT) |
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  TM 5-6115465-34
TO 35C2-3-446-2
NAVFAC P-8-625-34
TM 06858B/06859D34
TROUBLESHOOTING (CONT)
Table 2-2.
CORRECTIVE ACTION
MALFUNCTION
PROABABLE CAUSE
Repair voltage regulator
a. Defective voltage regula-
a.
18. Generator ter-
assembly (para. 5-13).
minal voltage
tor assembly ( figure
drops when 1oad
is applied
b. Check and tighten elec-
b. Loose electrical connec-
trical connection.
tion ( figure 5-30).
a. Place operations switch
a. operations switch set to
19. Poor voltage,
to single unit position
paral1el operation.
regulation
Repair voltage regulator
b. Defective voltage regula-
b.
assembly (para. 5-13).
tor ( figure 5-30).
c. Replace current trans-
c. Defective current trans-
former assembly (para.
former CT4, CT5, or CT6
(4, figure 5-9).
a. Align or replace gover-
a. Governor control unit de-
20. Generators do
nor control unit (para.
fective or out of adjust-
not parallel
ment (Precise).
properly
4-7.1, MEP 114A).
b.
Check and adjust voltage
b.
Improper speed droop or
and speed droop as
voltage droop adjustment
necessary ( para. 3-20).
(utility).
a. Repair or replace control
Frequency meter
a. Defective control cubicle
21.
cubicle wiring harness
wiring harness assembly
does not register
assembly (para. 4-2).
Test or replace frequency
b.
b. Defective frequency con-
converter and frequency
verter or frequency
meter (para. 4-2).
meter.
Repair or replace control
a.
22.
AC ammeter fails
a. Defective control cubicle
cubicle wiring harness
to register
wiring harness assembly
assembly (para. 4-2).
(figure 4-61.
Replace volts- amps trans-
b.
b.
Defective volts-amps
fer switch (para. 4-2).
transfer switch.
Replace ac ammeter ( para.
c.
c. Defective ac ammeter.
Test and replace defec-
d.
d. Defective current
tive transformers
transformer CT1, CT2,
or CT3 (10, figure 5-9)
a. Repair or replace con-
Watt meter fails
a. Defective control cubi-
23.
to register
cle wiring harness as-
trol cubicle wiring
harness assembly ( para.
sembly (figure 4-6).
b. Defective thermal watt
Replace thermal watt con-
b.
verter andd watt meter
converter or watt meter.
a. Align governor control
a. Governor control unit out
24. Frequency
drifts.
of al alignment (Precise sets
unit (para. 4-7,
only).
MEP 104A, or 4-7.1,
MEP 114A).
b.
Engine runs erratically.
b.
See Malfunction 4 of
this table.
Change 5
2-7
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