SERVICE MANUAL NUMBER 26
CHARGING SYSTEM
5.
If reading is between 6.0 and 7.0 volts, rotor field circuit probably is open. Remove
regulator and inspect for worn brushes or dirty slip rings. Replace brushes if less than
1/4
in. (6 mm) long. If brushes and slip rings are in good condition, disassemble and
perform rotor test as outlined under “Component Testing - Rotor” following.
d
a
e
c
b
72784
a - Excitation Wire - PURPLE
b - Sensing Wire - RED/PURPLE
c - Tie Bar
d - Voltmeter (0-20 Volts)
e - Ground
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
a - Output Wire - ORANGE
b - Excitation Wire - PURPLE
c - Sensing Wire - RED/PURPLE
d - Voltmeter (0-20 Volts)
e - Ground
INDEX
90-861329--1
MARCH 1999
Page 4C-9
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 181 CID |
| Model Year | 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
(6 votes, average: 5 out of 5)
Marine readers have rated Mercury MerCruiser GM 4 Cylinder 181 cid 3.0L Marine Engines Service Manual Number 26 5.0 out of 5.0 based on 6 product reviews. Thanks for sharing this material. Helps a lot after suffering with bad mechanics. spend too much money and nothing very good
great manual, makes impossible jobs possible. without a manual you can not do the job, a must have.
Great resource. Excellent information provided.
Need help to install automate choke
Need help to instal automate choke