SERVICE MANUAL NUMBER 24
CHARGING SYSTEM
SENSING CIRCUIT
1.
2.
Unplug RED/PURPLE lead from voltage regulator.
Connect positive (+) voltmeter lead to red/purple lead and negative (–) voltmeter lead
to ground terminal.
3.
Voltmeter should indicate battery voltage. If battery voltage is not present, check sens-
ing circuit (red/purple lead) for loose or dirty connection or damaged wiring.
d
a
e
c
72786
b
Typical
a - Output Wire - ORANGE
b - Excitation Wire - PURPLE
c - Sensing Wire - RED/PURPLE
d - Voltmeter (0-20 Volts)
e - Ground
Component
ROTOR
1.
Test rotor field circuit for opens, shorts or high resistance (Test 1), using an ohmmeter
(set on R x1 scale), as follows:
a
b
72831
Testing Rotor Field Circuit
a - Test 1
b - Test 2
a. Connect one ohmmeter lead to each slip ring.
b. Ohmmeter reading should be 4.2 to 5.5 ohms with rotor at room temperature
°F (21-26°C).
70-80
90-861327--1
OCTOBER 1999
Page 4C-11
Product Specification
Categories | Mercury MerCruiser Manuals |
---|---|
Tags | Mercury MerCruiser 305 CID, Mercury MerCruiser 350 CID |
Model Year | 1998, 1999, 2000, 2001 |
Download File |
|
Document File Type | |
Copyright | Attribution Non-commercial |
Great performance engine.
Class 1