Formula Fastech Service Manual page 45

Formula recommends starting your engine with
the battery switch in the ALL position. This will
supply your engine with the most cranking power
as well as charge both batteries while the engine
is running. If you intend to use 12 VDC accessory
power for an extended period of time without the
engine running, switch to only one battery.
For the location of the battery selector switch,
refer to Specifications, in Section 3.
Typical Twin Engine Battery Switch—In twin
engine applications, the port engine START
battery doubles as the auxiliary (12 volt
accessories) power source. The starboard engine
START battery is solely used to start the
starboard motor. To turn the battery(ies) ON, turn
the battery switch clockwise to the ON position.
To turn the battery(ies) OFF, turn the switch
counterclockwise to the OFF position.
1
B AT T E R Y
PA R A L L E L
O N
P O R T
Q F F
S TA R T / A U X
O N
O F F
A U X I L I A R Y
P O W E R
1. Battery Parallel Switch
Typical Twin Engine Battery Switch
Figure 4-34
FORMULA
CONTROLS AND INDICATORS
C A U T I O N !
T H E B AT T E R Y PA R A L L E L
S W I T C H I S T O B E U S E D
F O R E M E R G E N C Y S TA R T I N G
P R O C E E D U R E S O N LY !
D U R I N G N O R M A L B O AT
O P E R AT I O N I T S H O U L D
R E M A I N I N T H E " O F F "
P O S I T I O N .
S T B D
S TA R T
O N
O F F
FOR039a
FASTECH
Note: Power is supplied to the bilge pumps, high
water alarm, stereo memory, and galvanic
protection system through the constant power
circuit, independent of the battery switches'
positioning (i.e., these components receive power
even with the switches in the OFF position).
Each twin engine boat is equipped with a battery
parallel system (Figure 4-33). The battery parallel
switch allows you to start either engine off of
either battery. The switch should be in the OFF
position during normal use. Should one of the
START batteries be low on cranking power, turn
the battery parallel switch ON. This allows the
engine with the low battery to start by using power
from the other engine's battery. Once both
engines are running, turn the battery parallel
switch OFF. If you continue to have a low battery
problem, please contact your Formula dealer.
For the location of the battery selector switches,
refer to Specifications, in Section 3.
4-15