SERVICE MANUAL NUMBER 23
CHARGING SYSTEM
3.
Meter should indicate a high or infinite resistance (no meter movement) when
connected one way and a low reading when connected the other. If both readings are
high or infinite, rectifier is open. If both readings are low, rectifier is shorted.
4.
Repeat Steps 1 through 3 for two other rectifiers in heat sink.
b
c
72834
a
a - Stud
b - Rectifier Terminal
c - Repeat Test Between These Terminals And Stud
5.
6.
Replace assembly if any one of the rectifiers is shorted or open.
Connect one lead of an ohmmeter (set on R x1) to the common side of the diode and
the other lead to the other side, of one of the three diodes.
b
a
72148
a - Common Side Of Diode Circuit Board
b - Repeat Test For Two Diodes
7.
8.
Reverse leads and again note reading.
Meter should indicate a high or infinite resistance (no meter movement) when con-
nected one way and a low reading when connected the other. If both readings are high
or infinite, diode is open. If both readings are low, diode is shorted.
9.
Repeat Steps 6 through 8 for the other two diodes.
10.
Replace rectifier assembly if any one of the diodes is shorted or open.
90-861326--1
MARCH 1999
Page 4C-23
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 454 CID, Mercury MerCruiser 502 CID |
| Model Year | 1998, 1999, 2000, 2001 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
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