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MAINTENANCE, LUBRICATION AND SERVICE
ELECTRICAL SYSTEM
Completely Discharged Batteries
Extremely cold or completely discharged
batteries may not initially show a charge
since the electrolyte is nearly pure water
and, therefore, a poor conductor. As the
acid level in the electrolyte increases
during charging, the charging current will
also increase. Use the following
procedure when charging a completely
discharged battery:
1
Measure the voltage at the battery
terminals. If it is below 10 volts,
current will be very low and may not
show up on many battery charger
ammeters.
2
Set the charger on the high setting.
3
Some chargers have a polarity
protection feature which prevents
accidental reversal of the charger
leads. A completely discharged
battery will not have enough voltage
to override this feature, making it
appear that the battery will not
accept a charge. Check the charger
manufacturer's instructions on how
to bypass this feature.
4
Once the battery starts to accept a
charge, the charging rate will rise
very rapidly. Carefully monitor the
ammeter to prevent too-high a
charging rate.
5
Proceed to charge battery at one-
tenth of its rated capacity for one-
half hour. Example: For battery rated
at 64 (amps-hour), charge at 6.4 amp
setting.
NOTE
Batteries with very low voltage (below
11.6 volts) or those that do not initially
accept a charge are not necessarily
defective. Batteries that have been
discharged for long periods of time may
be heavily sulfated or hydrated (containing
lead shorts that cause the battery to self-
discharge). To accept a charge, batteries
with either of these conditions may require
a longer charging time or a very high initial
charge.
Use the following chart to determine the
time required for the battery to begin
accepting a measurable charge. (If the
battery has not started to accept a
charge after the specified time, it should
be replaced.)
Charger Voltage
Hours
16.0 or more
Up to 4
14.0 to 15.9
Up to 8
13.9 or less
Up to 16
Load Test
A battery must be fully charged before
performing a load test. To load-test a
battery follow the manufacturer's written
instructions.
Lighting
WARNING
Using incorrect bulbs or lamps may result
in failures that could lead to a fire or a
vehicle accident caused by improper
lighting.
Check all lights on the vehicle daily for
proper function. Replace burned out
inserts and bulbs. Replace any broken
or cracked side or rear reflectors.
Headlights should be checked for aim at
least once per year.
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Содержание M359
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