Chevrolet 70 Series 1970, Service Manual

Page: 563 / 841

ENGINE ELECTRICAL 6Y-22
ALTERNATING CURRENT GENERATING SYSTEM
(NON-INTEGRAL TYPE)
A n o n -in teg ral (g e n era to r and se p a ra te regu lato r) o r an in teg ra l
(g en erato r with a so lid s ta te re g u la to r bu ilt-in) type generating sy stem
is u se d on vehicles covered by th is m anual.
NOTE: The in te g ra l type generating sy stem is covered la te r .
R efe r to "Model A pplication C hart" below and "S pecifications" at
end of th is section. This section is divided into su b -sec tio n s lis te d in
the index following:
Subject P ag e No.
M od el A p p lica tio n C hart .................... .............................................................6Y-22
G e n e ra tin g S y ste m G e n e r a l D e s c r i p t i o n ............................................ .... 6Y-22
O n -V e h ic le M ain ten an ce, T e s t s , and A d j u s t m e n t s ........................ .....6Y-25
T w o -U n it T yp e R eg u la to r (M odel
1119507
o r
1119515) . . . .
6Y-34
T r a n s is t o r iz e d T yp e R e g u la to r (M odel
1116374
o r
1116378) .
6Y-36
F ull T ra n s is to r Type R egulator (Model 9000590) ..........................6Y-38
N on-Integral Type A lternating C u rre n t
G en eratin g S y s te m S p e c i f i c a t i o n s ................................................ .... 6Y-46
M ODEL APPLIC ATION CHART
AMPERAGE TRUCK SERIES
GENERATOR
USE WITH
REGULATOR
STANDARD'
42-AMP—HM/JM-80....................................................................................... ............................................ 1100842
1119507
42-AMP—TM-80............................................................................................. ............................................ 1100842
1119515
61-AMP—HV/JV/TV 70................................................................................... ............................................ 1100849
1119507
62-AMP—HI/HN/JI/JN/MH/MI/90............................................................ ........................................... 1117754
1116374
75-AMP—DC/DN/FC/FN-90 (DELCO-REMY)................................................ ............................................. 1117225
INTEGRAL
75-AMP—DH/DI/FH/FI-90 (DELCO-REMY).................................................. ............................................. 1117231
INTEGRAL
OPTIONAL...................................................................................................
61-AMP—HM/JM-80................................................................................... 1100849 1119507
61-AMP—TM-80...............................................................................
1100849 1119515
62-AMP—HM/JM-80.......................................................................................
1117754 1116374
62-AMP—TM-80............................................................................................... 1117754 1116378
62-AMP HI/JI/MH-90................................................................................... 1117756
9000590 (a)
105-AMP—DH/DI/FH/FI-90 (Leece Neville)................................................
(a) Requires 1115841 Field Relay
............................................ 655988 INTEGRAL
GENERATING SYSTEM GENERAL DESCRIPTION
(NON-INTEGRAL TYPE SYSTEM)
The b asic charging sy stem components include
the b attery , the se lf-rec tify in g , alternating c u rre n t
g e n e ra to r, the voltage re g u la to r, and in terco n n ect­
ing w iring.
An indicator lam p (tell-tale) which indicates
only w hether o r not the g en e rato r is charging, o r
an am m eter o r v o ltm e te r type charge indicator is
u sed on a ll vehicles covered by th is m anual.
F ig u re 1 shows a schem atic diagram of gen­
eratin g sy stem on vehicles equipped with the two-
unit type voltage re g u la to r. The left view applies
to vehicles equipped with the 1119515 re g u la to r and
the rig h t view applies to vehicles equipped with the
1119507 type re g u la to r.
F igure 2 illu s tra te s a schem atic diagram of
the generating sy stem used on vehicles equipped
with the 1116374 o r 1116378 tra n s is to riz e d type
re g u la to r.
F ig u re 3 illu s tra te s a schem atic diagram of
the generating sy stem used on vehicles equipped
CHEVROLET SERIES 70-90 HEAVY DUTY TRUCK SHOP MANUAL