Yanmar 3YM30, Service Manual

Page: 205 / 231

12. Electrical System
184
12.1.1 Wiring diagram
For B-type instrument panel
-
+
Starter relay
C.W. temp. switch Eng. oil pressure switch
Sail drive
only for sail drive
S
B
L
E
3R
0.85LB
0.85RB
0.85YW
0.85WL
0.85 O
0.85YG
Battery
Starter
Earth bolt
Alternator
Wire
harness
R
Wire harness
2L
12V
1
3
2
Battery switch
Procured by customer
L=1+2+3(m)
Allowable Length by
cross sectional area
of battery cable
10R
10B
0.85B
Eng.stop solenoid
2B
2R
Stop Relay
WBr
2B
5R
+
-
Relay
W/Y
B
3BR
B
Y
Amplifier
only for sail drive
+
-
B
L
YG
RB
Section of cable Allowable Length
(mm 2 )
15(mm 2 )
<0.86(m)
20(mm
2
) <1.3(m)
<2.3(m)
30(mm
2
)
40(mm
2
)
<2.8(m)
<3.5(m)
50(mm
2
)
2W
60(mm
2
)
<4.1(m)
CFW
temp. Buzzer
oil press.
Tacho meter
Instrument panel
17
G1
+ - P
G2
Key switch
Stop switch
30
WBr
hour meter
AC
fuse (3A)
Alarm lamps
diodes
R
L
L
R
W
O
B
YW WL YG LB
Sail
drive
seal Charge
Grow plug
2B 2B
5R
Option
L=6M
Option
L=3M
2W
2B
0.85B
128990-77910
119247-77100
120270
-77511
119717
-77800
0.85WBr
2R
A
A
(Color coding)
R Red
B Black
W White
L Blue
RB Red / Black
LB Blue / Black
YW Yellow / White
YG Yellow / Green
WL White / Blue
WG
GR White / Green
Green / Red
O Orange
WBr White / Brown
3R 3W
YW WL WG B
RB LB O YG
Key switch
Coupler
(View from A-A)
GLOW
OFF
ON
START
30 AC G1 G2 17
3L