Chevrolet 30 Series 1967 Service Manual page 349

B a t t e r y ...............................................................................6Y-1
Charging S y s te m ................................................................6Y-7
Ignition S y ste m ...................................................................6Y-18
General D e s c r ip tio n ......................................................... 6Y-1
Types of B a tte rie s ......................................................... 6Y-1
Dry Charged Batteries
Activating Dry Charged B atteries.............................. 6Y-2
Wet Charged Batteries
Periodic S e r v ic e ............................................................... 6Y-3
Common Causes of Failure ...........................................6Y-3
Electrolyte Level ......................................................... 6Y-4
Water U s a g e .................................................................. 6Y-4
Cleaning........................................................................... 6Y-4
Cables ........................................................................... 6Y-4
C arrier and H olddow n................................................... 6Y-4
The Battery (fig. lb) is made up of a number of sepa­
rate 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 dis­
sim ilar active materials and kept apart by separators.
The elements are immersed in an electrolyte composed
of dilute sulfuric acid. Plate straps located on the top
of each element connect all the positive plates and all
the negative plates into groups. The elements are con­
nected 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 con­
struction. The cell connectors, 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, particularly during engine cranking at low
temperatures.
SECTION 6Y
ENGINE ELECTRICAL
CONTENTS OF THIS SECTION
Page
BATTERY
Page
............................................. 6Y-1
............................................. 6Y-3
GENERAL DESCRIPTION
Starting System
Special Tools .
INDEX
Safety Precautions . . ................................................... 6Y-4
Charging Procedures......................................................... 6Y-4
Slow Charging ............................................................... 6Y-4
Fast C h a r g i n g ............................................................... 6Y-4
Emergency Boost C h a r g in g .......................................... 6Y-5
Test P r o c e d u re s ............................................................... 6Y-5
Visual Inspection ......................................................... 6Y-5
In s tru m e n t......................................................................6Y-5
Full Charge Hydrometer Test
Specific Gravity R e a d in g s ............................................. 6Y-5
Cell Comparison T e s t ................................................ 6Y-6
Installing Battery ............................................................ 6Y-6
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
link off the battery positive cable (14 gage wire). This
lead is an integral part of the Battery cable assembly
and servicing requires replacing the complete cable
assembly.
DRY CHARGED 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. A " dry charge"
Battery contains fully charged elements which have been
Page
6Y-34
6Y-37
Page
.................................... 6Y-5
CHEVROLET TRUCK SERVICE MANUAL