Buick LeSabre Custom 2000, Руководство пользователя

Страница: 117 / 347

2000 STARTING & CHARGING SYSTEMS
Generators & Regulators - Bonneville & LeSabre
DESCRIPTION & OPERATION
The AD230 and AD237 generators have high amperage output. The AD230 has an outside stator lamination
diameter of 130 mm. The AD237 has an outside stator lamination diameter of 137 mm. Generators include a
delta stator, rectifier bridge, and rotor with slip rings and brushes. A built-in regulator incorporates fault
detection circuitry. A conventional pulley and dual internal fans are used to cool slip ring end frame, rectifier
bridge and regulator.
The generator operates with 4 wire connections and a ground path through the mounting bracket. The first wire
connection is the BAT (output) terminal. This terminal must be connected to the battery during operation. The
second wire connection is connected from generator terminal "L" (connector terminal "B") internal regulator
lamp driver to Powertrain Control Module (PCM). This circuit monitors and controls generator operation. The
PCM controls indicator light function. The third wire connection is connected from generator terminal
"F" (connector terminal "C") to PCM. The PCM also monitors this circuit. The fourth wire is connected from
generator terminal "S" (connector terminal "D") to an external voltage reading. If this circuit is interrupted,
regulator will default to internal voltage reading for control.
Regulated voltage varies with temperature. System limits voltage by controlling rotor field current while field
current is on. Regulator switches rotor field current on and off at a fixed frequency of 400 cycles per second to
help control radio noise. By varying overall on/off time, correct average field current for proper system voltage
control is obtained. At high speeds, with lower electrical loads, on-time may be 10 percent. At low speeds, with
higher electrical loads, on-time may be as much as 90 percent. See
GENERATOR OUTPUT RATING table.
GENERATOR OUTPUT RATING
ADJUSTMENTS
BELT TENSION
TROUBLE SHOOTING
GENERATOR NOISE DIAGNOSIS
Option Code Generator Rated AMP Output
L36 AD230 105
L37 AD237 125
NOTE: Drive belt tension is controlled by a belt tensioner. No adjustment is required.
NOTE: For additional information, see TROUBLE SHOOTING article in GENERAL
INFORMATION.
2000 Pontiac Bonneville SE
2000 STARTING & CHARGING SYSTEMS Generators & Regulators - Bonneville & LeSabre
2000 Pontiac Bonneville SE
2000 STARTING & CHARGING SYSTEMS Generators & Regulators - Bonneville & LeSabre
Microsoft
Wednesday, April 21, 2010 9:06:03 AM Page 1 © 2006 Mitchell Repair Information Company, LLC.
Microsoft
Wednesday, April 21, 2010 9:06:08 AM Page 1 © 2006 Mitchell Repair Information Company, LLC.