Mercury D4.2L D-Tronic

CHARGING SYSTEM SERVICE MANUAL NUMBER 22
Page 4B-20 90-860074--1 FEBRUARY 2002
Battery Isolator Diagram
72934
1
2
2
2
A
BB21
BLK
B +
(–)
RED
2
2
a
b
c
d
e
1.
Typical Alternator
a-Isolator
b-Alternator
c-Starter
d-Cranking Battery
e-Auxiliary Battery
1-BLUE Wire From Alternator Battery Terminal
2-8 Gauge Minimum
1.
Sufficient Gauge Wire Spliced To Connect As Shown.