Kohler Command PRO CS Service Manual page 77

Battery
General
A 12 volt battery (not furnished) with a minimum
current rating of 160 (CS4, CS6) or 200 (CS8.5-12) cold
cranking amps should be sufficient for cranking most
electric start engine models. The actual cold cranking
requirement depends on engine size, application and
starting temperatures. Cranking requirements increase
as temperatures decrease and battery capacity shrinks.
Refer to the operating instructions of the equipment
this engine powers for specific battery requirements.
If the battery charge is not sufficient to turn over the
engine, recharge the battery.
Battery Maintenance
Regular maintenance is necessary to prolong battery
life.
WARNING: Explosive Gas!
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.
Electrical System and Components
2. Keep the cables, terminals, and external surfaces
of the battery clean. A build-up of corrosive acid
or grime on the external surfaces can cause the
battery to self-discharge. Self-discharge occurs
rapidly when moisture is present.
3. Wash the cables, terminals, and external surfaces
with a mild 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
To test the battery, you will need a DC voltmeter.
Perform the following steps (See Figure 8-27).
1. Connect the voltmeter across the battery
terminals.
2. Crank the engine. If the battery drops below 9
volts while cranking, the battery is discharged or
faulty.
Figure 8-27. Battery Voltage Test.
Section 8
DC Voltmeter
Battery
8.21
8