TM 5-6115-271-14
TO 35C2-3-386-1
TM-05926A-14
NAVFAC P-8-613-14
Table 4-2. Troubleshooting (Cont'd.)
Table 4-2. Troubleshooting (Cont'd.)
MALFUNCTION
MALFUNCTION
TEST OR INSPECTION
TEST OR INSPECTION
CORRECTIVE ACTION
CORRECTIVE ACTION
3. GENERATOR FAILS TO BUILD UP RATED
3. GENERATOR FAILS TO BUILD UP RATED
VOLTAGE (Cont'd)
VOLTAGE (Cent'd)
Load Meter
b.
(2) Position circuit breaker switch
to ON position.
(1) Connect a load of known wat-
(3) With a multimeter, measure
tage and proper voltage to the output
output voltage across load terminals on
terminals of the generator set. Max-
all position settings of the voltage
imum load is 3000 volts.
selector switch. Output voltage should
(2) Start the generator and put cir-
not vary more than 5% from the set
cuit breaker in the ON position.
voltmeter.
Observe reading on set load meter.
Meters should indicate according to
If the voltage on the voltmeter varies
load attached, i.e., 750-watts-25%,
more than 5%, replace the voltmeter
1500 watts50%, etc.
If load meter does not read
b. Time Meter. Test the time total-
within specifications, replace the
izing meter by checking it against a
load meter (para 4-17).
reliable clock. Check mission dura-
tion time against the time totalizing
c. Voltage Selector Switch.
meter.
(1) Disconnect load cables, start
generator set and allow it to warm
Replace a defective, inoperative time
up.
totalizing meter (para 4-18).
(2) Put circuit breaker in the ON
e. Current Selector Switch.
position. Check reading on voltage
(1) Stop the generator set.
selector switch and voltmeter. With a
(2) Disconnect the input lead at
multimeter, measure output voltage
terminal 11. With a multimeter, check
across load terminals that are com-
continuity between terminals 11 and
patible to the setting on the voltage
12 (I1), 11 and 13 (I2), 11 and 14
selector swich.
(I 3), on all three positions of the
If proper voltages cannot be
current selector switch.
read on output terminals, replace the
If an open circuit is indicated on
voltage selector switch (para 4-21).
selected switch settings of the current
selector switch, the switch is defective
and should be replaced (para 4-21).
current selector switch for broken glass,
improper operation, or other damage.
4. GENERATOR NOISY
Test the voltmeter, time meter and
current selector switch as follows:
Inspect for loose, vibrating mounting bolts.
a. Voltmeter.
Tighten the mounting bolts.
(1) Remove load cables from load
terminals and start the generator set.
Change 10
4-14.1/(4-14.2
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