TP-7070 7/18 93Section 3 Scheduled Maintenance
3.9 Battery Systems
Refer to this section for general battery information and
maintenance. All generator set models use a negative
ground with a 24-volt engine electrical system. Consult
the generator set nameplate for the engine electrical
system voltage. Consult the generator set spec sheet for
battery capacity recommendations for replacement
purposes. The wiring diagrams provide battery
connection information. See Figure 3-21 for typical
battery connections, including multiple battery
configurations.
4321
12 34
KW-272000-B
1. To positive (+) terminal on starter solenoid.
2. To ground (--) terminal on or near starter motor.
3. To positive (+) terminal on second starter solenoid.
4. To ground (--) terminal on or near second starter motor.
Figure 3-21 24-Volt Electrical System, Dual Starter
Motors, Typical Battery Connections
3.9.1 Battery Safety
Sulfuric acid in batteries.
Can cause severe injury or death.
Wear protective goggles and
clothing. Battery acid may cause
blindness and burn skin.
WARNING
Explosion.
Can cause severe injury or death.
Relays in the battery charger
cause arcs or sparks.
Locate the battery in a well-ventilated
area. Isolate the battery charger from
explosive fumes.
WARNING
Battery electrolyte is a diluted sulfuric acid. Battery acid
can cause severe injury or death. Battery acid can cause
blindness and burn skin. Always wear splashproof safety
goggles, rubber gloves, and boots when servicing the battery.
Do not open a sealed battery or mutilate the battery case. If
battery acid splashes in the eyes or on the skin, immediately
flush the affected area for 15 minutes with large quantities of
clean water. Seek immediate medical aid in the case of eye
contact. Never add acid to a battery after placing the battery in
service, as this may result in hazardous spattering of battery
acid.
Battery acid cleanup. Battery acid can cause severe
injury or death. Battery acid is electrically conductive and
corrosive. Add 500 g (1 lb.) of bicarbonate of soda (baking
soda) to a container with4L(1gal.)ofwaterandmixthe
neutralizing solution. Pour the neutralizing solution on the
spilled battery acid and continue to add the neutralizing
solution to the spilled battery acid until all evidence of a
chemical reaction (foaming) has ceased. Flush the resulting
liquid with water and dry the area.
Battery gases. Explosion can cause severe injury or
death. Battery gases can cause an explosion. Do not smoke
or permit flames or sparks to occur near a battery at any time,
particularly when it is charging. Do not dispose of a battery in a
fire. To prevent burns and sparks that could cause an
explosion, avoid touching the battery terminals with tools or
other metal objects. Remove all jewelry before servicing the
equipment. Discharge static electricity from your body before
touching batteries by first touching a grounded metal surface
away from the battery. To avoid sparks, do not disturb the
battery charger connections while the battery is charging.
Always turn the battery charger off before disconnecting the
battery connections. Ventilate the compartments containing
batteries to prevent accumulation of explosive gases.
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