Chevrolet 30 Series 1967 Service Manual page 355

General D e s c r ip tio n ......................................................... 6Y-7
Maintenance and A djustm ents.......................................... 6Y-9
Static C h e c k s .................................................................. 6Y-10
System Condition Test
Voltage Regulator Adjustm ent....................................... 6Y-10
System Component C hecks............................................. 6Y-11
5.5-6.2" Systems
Generator Output......................................................... 6Y-11
Generator Diode and Field T e s t .................................6Y-11
Indicator Lamp - Initial Field Excitation
Circuit T e s t s ............................................................ 6Y-12
Field Circuit Resistance W ire T e s t s ........................6Y-13
Voltage Setting (See System Condition
Test) ........................................................................
The charging system includes the battery, generator,
regulator, telltale light, and necessary wiring to con­
nect these components.
standard equipment, although there are various capacities
available on all models.
The Delcotron continuous output A.C. generator (figs.
lc and 14c) consists of two major parts, a stator and a
rotor. The stator is composed of a large number of wind­
ings assembled on the inside of a laminated core that is
attached to the generator frame. The rotor revolves
within the stator on bearings located in each end frame.
RELAY
TERM IN A L
" B A T "
T ER M IN A
5.5" SERIES ID DELCOTRON
CHARGING SYSTEM
Page
GENERAL DESCRIPTION
The Delcotron is offered as
" F" T ERM IN A L
GRD 7 T ERM IN A L
F ig . l c —Delcotrons
INDEX
Field Relay Check and A djustm ent........................... 6Y-13
Other Harness C h e c k s ................................................ ....
6.6" System
Field Relay T e s t ......................................................... 6Y-15
Generator Field Circuit T e s t .................................... 6Y-15
Generator Field T est................................................... 6Y-15
Circuit Resistance T e s t ............................................ 6Y-15
Voltage Setting Adjustment.......................................... 6Y-15
Service O perations............................................................ 6Y-16
G en erato r........................................................................ 6Y-16
Pulley Replacement...................................................... 6Y-16
Removal and Installation............................................. 6Y-17
Brush Replacement (6.2" Unit).................................... 6Y-17
Special T o o ls ..................................................................... 6Y-37
Two brushes are required to carry current through the
two slip rings to the field coils wound concentric with the
shaft of the rotor. Six rectifier diodes are mounted in the
slip ring end frame and are jointed to the stator windings
at three internally located terminals.
Diodes are mounted in heat sinks to provide adequate
heat dissipation. The six diodes replace the separately
mounted rectifier as used in other types of application.
The diodes change the Delcotron A. C. current to D. C.
current.
Three regulators are available on truck models.
" B A H "
TERMINAL
N tL L>
RELAY
6.2" SERIES 2D, TYPE 150 DELCOTRON
ENGINE-ELECTRICAL 6Y-7
Page
A
LIGHT
RELAY
CHEVROLET TRUCK SERVICE M ANUAL