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9. Electrics
• 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 engine starter motor solenoid terminal.
• The starter motor battery cable must have a cross sectional area of at least 50mm
• Connect the domestic battery positive cable to the 240A alternator "Pos Out" terminal.
This ensures that the 50A alternator charges the start battery and the 240A alternator
charges the domestic battery. Twin alternators remove the requirement for a split
charging system or relay.
• The cable will need to be manufactured locally and fitted between the lower 240A
alternator "Pos Out" terminal and the domestic battery positive terminal. The cable
should have a minimum cross-sectional area of at least 70mm
• A 24v 120A alternator should have a minimum cable cross sectional area of 40mm
• Both the negative battery terminals can be connected to a common earth point.
• The 240A alternator is of the insulated earth design and requires a heavy-duty earth
cable installed at all times.
• The electrical system complies with EN ISO 10133. The electrical supply for the engine
ECU system requires a clean electrical supply as per Section 6. Battery Disconnect
Switch 6.1.b. in EN ISO 10133. Connect the ECU power supply cable to the master
switch output.
• The engine control system is fully electronic. Any adjustments, alterations or repairs
need to be carried out be an authorised trained technician.
• It is important that the engine start battery is fully charged and is of the correct
specification as stated in 1. Engine Data of Section 10 - Technical Data.
• A red light (failure indicator light) is fitted to the relay panel on the engine. The failure
indicator light will start flashing when a fault occurs with the engine. Please refer to
Section 11 - Fault Diagnosis for further information.
RDG603A81 – Issue 2
CAUTION
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