8.3
Section 8
Electrical System and Components
8
Battery
General
A 12 volt battery with a rating of approximately 32
amp hours/250 cold cranking amps is normally used.
Refer to the operating instructions of the equipment
this engine powers for specific information.
Recharge the battery if the charge is not sufficient to
crank the engine.
NOTE: Do not attempt to jump start the engine with
another battery. Starting the engine with
batteries larger than those recommended can
burn out the starter motor.
Battery Maintenance
Regular maintenance will ensure the battery will
accept and hold a charge.
WARNING: Dangerous Acid, Explosive
Gases!
Batteries contain sulfuric acid. To prevent acid burns, avoid
contact with skin, eyes, and clothing. Batteries produce
explosive hydrogen gas while being charged. To prevent a
fire or explosion, charge batteries only in well ventilated
areas. Keep sparks, open flames, and other sources of
ignition away from the battery at all times. Keep batteries
out of the reach of children. Remove all jewelry when
servicing batteries.
Before disconnecting the negative (-) ground cable, make sure
all switches are OFF. If ON, a spark will occur at the ground
cable terminal which could cause an explosion if hydrogen gas
or gasoline vapors are present.
1. Regularly check the level of electrolyte. Add
distilled water as necessary to maintain the
recommended level.
NOTE: Do not overfill the battery. Poor
performance or early failure due to loss
of electrolyte will result.
2. Keep the cables, terminals, and external surfaces
of battery clean. A build-up of corrosive acid or
grime on the external surfaces can self-discharge
the battery. Self-discharging happens rapidly
when moisture is present.
3. Wash the cables, terminals, and external surfaces
with a baking soda and water solution. Rinse
thoroughly with clear water.
NOTE: Do not allow the baking soda solution to
enter the cells as this will destroy the
electrolyte.
Battery Test
Test the battery voltage by connecting a DC voltmeter
across the battery terminals - crank the engine. If the
battery drops below 9 volts while cranking, the
battery is discharged or faulty. Refer to Figure 8-2.
Figure 8-2. Checking Battery Voltage.
DC Voltmeter
Battery
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