Chevrolet 70 1969 Series, Shop Manual

Page: 390 / 913

ENGINE ELECTRICAL 6Y-19
ALTERNATING CURRENT GENERATING SYSTEM
The alternating current generator is used as standard and optional equip­
ment on vehicles shown in the "Models Application Chart” following:
Contents of this section are listed in Index below:
Subject Page No.
Model Application C h a r t ...................................................................... 6Y-19
Generating System General Description............................................. 6Y-19
On-Vehicle Maintenance, Tests, and Adjustments .......................... 6Y-21
Two-Unit Type Regulator (Model 1119507 or 1119515) ................... 6Y-28
Full Transistor Type Regulator (Model 1116374 or 1116378) . . . . 6Y-30
Charging System Trouble Analysis C h a r t .......................................... 6Y-32
Alternating Current Generating System Specifications ................... 6Y-33
MODEL APPLICATION
USE W IT H
A M P E R A G E T R U C K M O D E L S
G E N E R A T O R R E G U L A T O R
ST D . 42-AMP. — H M / J M - 8 0 ...................
1100842 1119507
S T D . 42-AMP. -- T M - 8 0 .......................... 1100842
1119515
S T D . 61-AMP. — H V / J V / T V - 7 0 .............
1100849 1119507
O P T . 61-AMP. — H M / J M - 8 0 ...................
1100849 1119507
O P T . 61-AMP. — T M - 8 0 ..........................
1100849 1119515
O P T . 62-AMP. — HM /JM - 80 . ................
1117754 1116374
O P T . 62-AMP. — TM-70; TM-80
. . . . 1117754 1116378
GENERATING SYSTEM GENERAL DESCRIPTION
The basic charging system components include
the battery, the self-rectifying, alternating current
generator, the voltage regulator, and interconnect­
ing wiring.
An indicator lamp (tell-tale) which indicates
only whether or not the generator is charging, or
an ammeter is used on all vehicles covered by this
manual. A voltmeter is available as optional equip­
ment.
Figure 1 shows a schematic diagram of gen­
erating system on vehicles equipped with the two-
unit type voltage regulator. The left view applies
to vehicles equipped with the ammeter type charge
indicator and the right view applies to vehicles
equipped with the optional voltmeter type charge
indicator.
Figure 2 shows a schematic diagram of gen­
erating system used on vehicles equipped with the
1116374 or 1116378 regulator.
CHEVROLET SERIES 70-80 H E A V Y DUTY TRUCK SH O P M A N U A L