Jabiru J450 Constructors Manual
Post-Paint>Fuselage>Install electrical wiring
Tuesday, April 6, 2010
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Wire the regulator connector
Power from the alternator will go to the regulator through the regulator connector, and power
from the regulator will go to the positive and negative sides of the battery as well as the power
to the main bus and to the optional low voltage warning light, also through the regulator
connector.
Crimp a male spade connector to each of 2 x 1m lengths of 16 gauge wire and plug them into
the female connectors from the alternator. Cover each connector with heat shrink tubing.
Route the wires into the wiring bundle that runs along the top right-hand engine mount,
around the firewall and down to the regulator connector.
Wire the male half of a QK6 connector as shown above – note that the positive and negative
wires to the battery are both 10 gauge (heavier) wire, shown above as light blue, while the rest
are all 16 gauge (lighter) wire, shown above as purple.
The colour coding of the pins in the diagram above indicates the colour of the wires coming
from the regulator to the connector.
Route the 10 gauge positive wire from the red pin to the front post on the starter solenoid.
Route the 10 gauge negative wire from the black pin to the earth terminal on the firewall.
Route the 16 gauge wires from the yellow pin to the main bus and from the green pin to the
optional low voltage warning light - pass both wires through the right hand cable collar in the
firewall and leave 300mm free inside the cabin for later fitting to Connector
B
. Carefully label
each wire with masking tape.
Once you have allowed enough wire length to enable routing in a tidy manner, strip 4mm
from the end of each wire, carefully crimp a female spade connector to each wire, and then fit
each connector carefully into the connector housing.
Refer to the
Engine bay wiring routing
step later in this task for an example of how to route
the wires from the Regulator plug to the battery and the cable collar.
+
Main bus 16g
Low voltage
light 16g
Alternator 16g
-
Battery 10g
Alternator 16g
+
Battery 10g