TP-7070 7/18 95Section 3 Scheduled Maintenance
3.10 Alternator Maintenance
This section covers alternator maintenance for several
different types of alternators and voltage regulators.
Refer to the instructions that correspond to the relevant
alternator models.
D Refer to the generator set specification sheet for
alternator models.
D Have an authorized distributor/dealer perform
service.
3.10.1 Alternator Safety
Accidental starting.
Can cause severe injury or death.
Disconnect the battery cables before
working on the generator set.
Remove the negative (--) lead first
when disconnecting the battery.
Reconnect the negative (--) lead last
when reconnecting the battery.
WARNING
Disabling the generator set. Accidental starting can
cause severe injury or death. Before working on the
generator set or equipment connected to the set, disable the
generator set as follows: (1) Shut down the generator set. (2)
Place the controller in Out of Service mode. (3) Press the
emergency stop button. (4) Disconnect the power to the
battery charger, if equipped. (5) Remove the battery cables,
negative (--) lead first. Reconnect the negative (--) lead last
when reconnecting the battery. Follow these precautions to
prevent the starting of the generator set by the remote
start/stop switch.
Testing live electrical circuits. Hazardous voltage or
current will cause severe injury or death. Have trained and
qualified personnel take diagnostic measurements of live
circuits. Use adequately rated test equipment with electrically
insulated probes and follow the instructions of the test
equipment manufacturer when performing voltage tests.
Observe the following precautions when performing voltage
tests: (1) Remove all jewelry. (2) Stand on a dry, approved
electrically insulated mat. (3) Do not touch the enclosure or
components inside the enclosure. (4) Be prepared for the
system to operate automatically.
(600 volts and under)
Grounding electrical equipment. Hazardous voltage will
cause severe injury or death. Electrocution is possible
whenever electricity is present. Ensure you comply with all
applicable codes and standards. Electrically ground the
generator set and related equipment and electrical circuits.
Turn off the main circuit breakers of all power sources before
servicing the equipment. Never contact electrical leads or
appliances when standing in water or on wet ground because
these conditions increase the risk of electrocution.
Short circuits. Hazardous voltage/current will cause
severe injury or death. Short circuits can cause bodily injury
and/or equipment damage. Do not contact electrical
connections with tools or jewelry while making adjustments or
repairs. Remove all jewelry before servicing the equipment.
Hot surfaces.
CAUTION
Servicing the alternator. Hot parts can cause severe
injury or death. Avoid touching the alternator field or exciter
armature. When shorted, the alternator field and exciter
armature become hot enough to cause severe burns.
Hazardous voltage. Moving parts.
Will cause severe injury or death.
Operate the generator set only when
all guards and electrical enclosures
areinplace.
DANGER
Servicing the generator set when it is operating. Exposed
moving parts will cause severe injury or death. Keep
hands, feet, hair, clothing, and test leads away from the belts
and pulleys when the generator set is running. Replace
guards, screens, and covers before operating the generator
set.
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