Four winns 338 Vista Owner's Manual page 73

Battery Selector Switch - Dual
The battery selector switch positions for the dual
battery selector switch is as follows:
"OFF" - With the battery selector switches in the "OFF"
position and the "SHIPS SYSTEMS" circuit breaker in
the "OFF" position, all 12 volt power to the boat is shut
off except to the fore and aft automatic bilge pumps,
high level alarm, stereo memory, and windlass.
Al ways turn the battery selector switches and the
SHIPS SYSTEMS" circuit breaker switch to the "OFF"
posi tion when the boat is unattend ed for an ex tended
period.
NOTICE
Twelve volt power to the cabin panel is
supplied by the "SHIPS SYSTEMS" circuit
breaker on the battery selector panel. This
must be turned on to oper ate any 12 volt
accessories on the cabin panel. The bilge
pumps, stereo memory and windlass receive
power from the ships system battery and
remain on at all time regardless of battery
selec tor or ship systems switch position.
NOTICE
DO NOT turn the battery selector switch to the
"OFF" position while its corresponding engine
is running. Alternator and wiring damage could
result.
Port Engine Battery Switch:
"ON" - Turning the switch to position "ON" will use the
port engine battery to power the port engine and 12
volt engine related equipment. The ships system
battery will not be used for any engine related equip-
ment, but will power all other 12 volt equipment on the
boat. The isolator will allow any alternator to charge all
three batteries. "ON" is the recommended switch
position for normal boat operation. This position allows
maximum use of 12 volt equipment on the boat.
Starboard Engine Battery Switch:
"ON" - Turning the switch to position "ON" will use the
stbd engine battery to power the stbd engine and 12
volt engine related equipment. The ships system
battery will not be used for any engine related equip-
ment, but will power all other 12 volt equipment on the
boat. The isolator will allow any alternator to charge
all three batteries. "ON" is the recommended switch
Electrical Systems - Section H
position for normal boat operation. This position allows
maximum use of 12 volt equipment on the boat.
Emergency Start Procedures:
If one of the designated engine batteries fails to start
its respective engine, engage the "EMERGENCY
START" switch at the helm and attempt to start the
engine. Current is drawn from the other batteries to
start the engine. Once engine has been started return
the "EMERGENCY START" switch to the "OFF"
position. Once back at port, be sure to have the failed
engine battery checked for possible service or re-
placement.
Note: An added feature is positive and negative studs
incorporated into the battery switch panel. These
studs may be used for raising the engine hatch should
the battery fail to start the engine even in EMERGEN-
CY START position. See Figure H3.
Negative Stud
Figure H3: Battery Switch
Positive Stud
Owner's Manual Page 70