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SECTION 6Y
ENGINE ELECTRICAL
CONTENTS OF THIS SECTION
Page
System
6Y-19
6Y-32
6Y-34
BATTERY
INDEX
Page
General Description
6 Y
_i
Types of Batteries
6Y-1
Dry Charged Batteries
6 Y
-2
Activating Dry Charged Batteries
6
Y-2
Wet Charged Batteries
6Y 2
Periodic Service
6Y-3
Common Causes of Failure
6 Y
- 3
Delco Eye
6 Y
_
3
Electrolyte Level
AY 3
Water Usage
] \
6 Y
_
3
Cleaning
6Y
_4
Cables
6 Y
_4
Carrier and Holddown
6Y-4
Page
Safety Precautions
6Y-4
Charging Procedures
. .
g
Y
_4
Slow Charging
gY-4
Fast Charging . *
6Y-4
Emergency Boost Charging
6Y-4
Test Procedures
QY-S
Visual Inspection
6Y-5
Instrument
6Y-5
Full Charge Hydrometer T e s t .
6Y-5
Specific Gravity Readings
6Y-5
Cell Comparison Test
.
6Y-5
Installing Battery
6Y-5
GENERAL DESCRIPTION
The battery (fig. lb) is made up of a number of separ-
ate elements, each located in an individual cell in a hard
rubber case. Each element consists of an assembly of
positive plates and negative plates containing dissimilar
active materials and kept apart by separators. Hie ele-
ments are immersed in an electrolyte composed of dilute
sulfuric acid. Plate straps located on the top of each ele-
ment connect all the positive plates and all the negative
plates into groups. The elements are connected in series
electrically by connectors that pass directly through the
case partitions between cells. The battery top is a one-
piece cover of hard rubber construction. Tfte cell con-
nectors, by-passing through the cell partitions, connect
the elements along the shortest practical path (fig. 2b).
With the length of the electrical circuit inside the
Battery reduced to a minimum, the internal voltage drop
is decreased resulting in improved performance, par-
ticularly during engine cranking at low temperatures.
The hard, smooth one-piece cover greatly reduces the
tendency for corrosion to form on the top of the Battery.
The cover is bonded to the case with sealing compound
that forms an air tight seal between the cover and case.
Protection for the Battery charging circuit (10 gage
wire) is provided by a pigtail lead which is a fusible Hnk
off the battery positive cable (14 gage wire). This lead is
an integral part of the Battery cable assembly and serv-
icing requires replacing the complete cable assembly.
TYPES OF BATTERIES
There are two types of Batteries—the "dry charge"
type and the "wet charge" type. The difference in types
depends on the method of manufacture.
ONE PIECE
CELL COVER
VENT PLUG
ELECTROLYTE LEVEL
INDICATOR
HOLD-DOWN SLOT
Fig.
lb—Battery
CHEVROLET CHASSIS SERVICE MANUAL
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