IMPORTANT: Press on the center of slip rings
only. Do not bend terminals or pinch wires.
c. If continuity does exist, rotor field circuit is
grounded. Inspect slip ring terminals to be
sure that they are not bent and touching rotor
shaft. Also be sure that excess solder is not
grounding terminals to rotor shaft. If cause for
ground cannot be found, unsolder field wind-
ing leads from slip ring terminals and connect
ohmmeter between one of the leads and rotor
shaft or pole pieces. If continuity still exists,
replace rotor assembly. If continuity is elimi-
nated, replace slip rings.
3.
Using an arbor press, install slip rings. Press on
center of slip rings until they contact shoulder of
rotor.
4.
Carefully wrap white wire around outer slip ring
terminal, and blue wire around inner slip ring ter-
minal. Solder wires in place.
b
a
a
b
73098
a - WHITE Wire
b - BLUE Wire
c
Component Testing
73099
Rotor
a - Slip Rings
b - Ohmmeter With Leads
c - Pole Pieces
1.
Test rotor field circuit for grounds, using an ohm-
meter (set on Rx1 scale) as follows:
a. Connect one lead of ohmmeter to either slip
ring and the other lead to rotor shaft or pole
pieces.
2.
Test rotor field circuit for opens, shorts or high re-
sistance, using an ohmmeter (set on Rx1 scale)
as follows:
b. Meter should indicate no continuity (meter
should not move).
a. Connect one ohmmeter lead to each slip ring.
b. Ohmmeter reading should be 4.1 to 4.7 ohms
with rotor at room temperature [70-80°F
(21-26
°C)].
Index
90-823224--2 796
CHARGING SYSTEM - 4C-31
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 454 CID, Mercury MerCruiser 502 CID |
| Model Year | 1993, 1994, 1995, 1996, 1997 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
(4 votes, average: 4.5 out of 5)
Marine readers have rated 1993 1997 Mercury-MerCruiser GM V8 454 CID 7.4L and 502 CID 8.2L Marine Engines Service Manual Number 16 4.5 out of 5.0 based on 4 product reviews. Hugely helpful service manual! Perfect. Thank you!
Manuals are all Important for Technician
This book is invaluable if you do your own repairs. Great book.
Could not find a copy until a search brought me here.
Excellent print.
Thank you