Alternating Current Generator - Carrier TRANSICOLD 69UG15 Series Operation And Service

CONDITION
3.2 BATTERY CHARGER (SOLID STATE) (CONTINUED)
Charger does not charge
Low output voltage measured
across charger output
Reverse polarity connection to
battery has caused charger to stop
charging

3.3 ALTERNATING CURRENT GENERATOR

No voltage
Low voltage
Fluctuating voltage (May be indi-
cated by flickering lights)
High voltage
T-343
POSSIBLE CAUSE
Open input circuit breaker
Charger is not receiving AC input
Charger output is not connected to 12 volt battery
Charger is bad
Battery not connected to charger. It is normal to
measure 12 volts or less across charger output with
no battery connected
Internal DC fuse blown and possible damage to
current carrying components
Loss of residual magnetism in exciter field
Circuit breaker tripped
Open in stator windings
Open or short in rotating rectifiers
Short circuited
Open in alternator field
Shorted exciter armature
Low engine speed
Excessive load
High resistance connections - connections are
warm or hot
Shorted field
Fluctuating speed
Irregular speed of engine
Loose terminal or load connections
Bad bearing causing uneven air gap
Excessive engine speed
3−4
REMEDY/
REFERENCE
SECTION
Reset
Using a voltme-
ter, confirm
charger is receiv-
ing correct (230v)
AC voltage. If not,
check input
connections.
Check output
wiring connec-
tions to battery.
Replace
Check charging
leads from
charger to battery
Replace
Section 4.5.2.a.
Check
Section 4.5.4/
Replace
Section 4.5.1.c.
Section 4.5.4/
Replace
Section 4.5.4/
Replace
Section 4.5.4/
Replace
Section 4.4.9
Check
Tighten
Section 4.5.4/
Replace
Section 4.4.9
Engine Manual
Tighten
Section 4.5.1/
4.5.3
Section 4.4.9