Chevrolet CHEVY VAN G10 SERIES Service Manual page 212

B a tte r y ..............., ...................................................................... 6Y -1
Charging S y s te m ....................................................................... 6 Y -9
Ignition System ....................................................................... 6 Y -17
G en e ra l D escriptio n
P erio dic S e r v i c e ..................................................................... 6Y -2
C o m m o n C au ses o f F a ilu re
E le ctro ly te L evel ..............................................................6Y -2
W a te r U s a g e ........................................................................ 6Y -3
C lean in g ................................................................................ 6Y -3
C a rrie r an d H o ld-D o w n
Safety P recau tio n s
The B attery (Fig. lb ) is made up o f a num ber o f separate
elem ents, each located in an individual cell in a hard rubber
case. Each elem ent consists o f an assembly o f positive plates
and negative plates containing dissimilar active m aterials and
k ep t apart by separators. The elem ents are im m ersed in an
electrolyte com posed o f dilute sulfuric acid. Plate straps
located on the to p o f each elem ent connect all the positive
plates and all the negative plates in to groups. The elem ents are
connected in series electrically by connectors th a t pass directly
through the case partitions betw een cells. The top is a
one-piece cover. The cell connectors, by-passing through the
cell partitions, connect the
practical path (Fig. 2b). With the length o f the electrical
circuit inside the B attery reduced to a m inim um , the internal
voltage drop is decreased resulting in im proved perform ance,
particularly during engine cranking at low tem peratures.
Protection for th e B attery charging circuit (1 0 gauge wire)
is provided by a pigtail lead w hich is a fusible link o ff the
battery positive cable (14 gauge wire).
A battery generally has two classifications o f ratings:
(1) a 20 hour rating a t 80°F and, (2) a cold rating a t 0°F
which indicates the cranking load capacity. The Ampere-Hour
rating found on batteries was based on the
T hat is, a battery capable o f furnishing three (3) am peres for
20
hours while m aintaining a specified average individual cell
voltage w ould be classified as a 60 am pere hour battery (e.g. 3
amperes X 20 hours = 60 A.H.) A PWR (Peak Watt Rating) has
been developed as a measure o f the Energizer's cold cranking
ability. The num erical rating is em bossed on each case at the
base o f the Eneraizer. This value is determ ined by m ultiplying
the m ax. c u r r e n t l y the m ax. voltage. The PWR should n o t be
SECTION 6Y
ENGINE ELECTRICAL
CONTENTS OF THIS SECTION
P age
BATTERY
Page
6 -1
Y
6Y -2
6Y -3
6Y -3
GENERAL DESCRIPTION
elem ents along the shortest
20
hour rating.
S tarting System .........................................................................6Y -25
Special Tools ..............................................................................6 Y -2 7
INDEX
T est P roced u res ......................................................................6Y -5
V isual Insp ectio n
Specific G rav ity R e a d i n g s .............................................. 6Y -5
C ell C o m p ariso n T e s t ...................................................... 6Y -5
In stru m en t ...........................................................................6Y -5
L o a d T est ...........................................................................
F u ll C h arg e H y d ro m ete r T e st
In stallin g B attery ...................................................................
M A N IF O L D A N D V EN T PLUG
HO LD D O W N SLOT
SIDE TERMINAL
Fig. ib - B a t t e r y
C H E V Y V A N S H O P M A N U A L
P age
Page
6Y -5
6 -6
Y
6 -6
Y
6 -6
Y