RDG603A27
– Issue 6
Page 24 of 59
8. Electrics
CAUTION
The blue link wire must be removed when the domestic battery positive lead has been
connected to the terminal post. Do not run the engine without either the blue link wire
or the domestic battery positive lead connected as alternator damage will occur.
If the engine is going to be run for more than 1 hour with the blue link wire in place,
remove the domestic alternator drive belt to prevent alternator damage.
Single Alternators
On engines fitted with single alternators, connect the main positive battery cable to the
starter motor solenoid terminal
Do not attach any part, hose or cable to the engine wiring harness. There is a warning
label attached to the harness to remind you of this.
Connect the wiring extension harness multi plug to the panel plug and the other end
to the engine.
Connect the start battery positive cable to the starter motor solenoid terminal.
The starter motor battery cable must have a cross sectional area of at least 50mm
2
.
Twin Alternators
Shire 70 WB: Connect the domestic battery positive cable to the 240A
alternator “Pos
Out” terminal. This ensures that the 50A alternator charges the domestic battery. Twin
alternators remove the requirement for a split charging system or relay.
Shire 85 WB: Connect the domestic battery positive cable to the 120A alternator B+
terminal. This ensures that the 150A charges the start battery.
Shire 70 WB and 85 WB: A cable will need to be manufactured locally and fitted
between the lower 240A alternator and domestic battery positive terminal. The cable
should have a minimum cross sectional area of 50mm²
Both negative battery terminals can be connected to common earth point.