390 Sundancer
®
(
425 Sundancer
®
)
6.2
S
ECTION
6 • E
LECTRICAL
S
YSTEM
Always disconnect battery cables before doing any
work on the engine's electrical system or alternator
wiring to prevent arcing or damage to the
!
CAUTION
The main engine cranking batteries consist of four
(4) 31DCM series, 12 volt batteries, two (2) for each
engine. If equipped with a bow thruster, there are
two (2) 31 series, 12 volt marine batteries connected
in series to create the 24 volts required for bow
thruster operation. The generator is powered by the
Port engine batteries.
Recommended batteries are available through your
local Sea Ray
®
dealer.
A. T
O
R
EMOVE
THE
B
ATTERY
C
ABLES
:
1.
Turn OFF all items drawing power from the
batteries.
2.
Turn OFF the “CONVERTER” breaker at the
main distribution panel.
3.
Turn OFF battery solenoid switches.
4.
Remove the positive cable first, then the
negative cable. To replace the cables, reverse
the procedure.
B
OW
T
HRUSTER
B
ATTERIES
(O
PTIONAL
)
(F
IG
. 6.2.2)
A
BOW THRUSTER BATTERIES
STBD MAIN ENGINE BATTERIES
PORT MAIN ENGINE BATTERIES
B
A
B
FWD
M
AIN
E
NGINE
B
ATTERIES
(D
IESEL
)
(F
IG
. 6.2.1)
B
A
FWD
F
E
D
C
H
G
J
I
MAIN DC NEGATIVE BUS
STBD ENGINE BATTERIES
PORT ENGINE BATTERIES
PORT ENGINE STARTER (POSITIVE)
PORT ENGINE NEGATIVE
ENGINE TO ENGINE NEGATIVE
MAIN BATTERY SOLENOID BOX
MAIN DC BREAKER PANEL BOX
STARBOARD ENGINE STARTER
(POSITIVE)
STARBOARD ENGINE NEGATIVE
GENERATOR
ENGINE TO ENGINE NEGATIVE
L
K
A
B
C
D
E
G
I
J
K
L
F
H
C
C
Summary of Contents for 390 Sundancer
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