ENGINE ELECTRICAL 6D1-3
Diagnosis
1. Visual Inspection
Inspect the battery for obvious physical damage, such as a
cracked or broken case, which would permit electrolyte loss.
Replace the battery if obvious physical damage is discovered
during inspection.
Check for any other physical damage and correct it as
necessary.
2. Hydrometer Check
3. Fluid Level Check
The fluid level should be between the upper level line (2) and
lower lever line (3) on side of battery.
a. CORRECT FLUID LEVEL - Charge the battery.
b. BELOW LOWER LEVEL - Replace battery.
4. Voltage Check
1. Put voltmeter test leads to battery terminals.
a. VOLTAGE IS 12.4V OR ABOVE - Go to Step 5.
b. VOLTAGE IS UNDER 12.4V - Go to procedure (2) below.
2. Determine fast charge amperage from specification.
(See Main Data and Specifications in this section).
Fast charge battery for 30 minutes at amperage rate no
higher than specified value.
Take voltage and amperage readings after charge.
a. VOLTAGE IS ABOVE 16V AT BELOW 1/3 OF
AMPERAGE RATE - Replace battery.
b. VOLTAGE IS ABOVE 16V AT ABOVE 1/3 OF
AMPERAGE RATE - Drop charging voltage to 15V and
charge for 10 - 15 hours. Then go to Step 5.
c. VOLTAGE IS BETWEEN 12V AND 16V - Continue
charging at the same rate for an additional 3-1/2 hours.
Then go to Step 5.
d. VOLTAGE BELOW 12V - Replace Battery.
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