Jabiru J450 Constructors Manual
Post-Paint>Fuselage>Assemble instrument panel
Tuesday, April 6, 2010
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Fit the LED lights through to the panel and busbar. The green light is the Master light; the rest
will be red lights. The connectors are labelled [
+
] and [-] – align all the [
+
] connectors to face
in the same direction. Tighten the retaining nuts firmly. Fit the Electric Turn Coordinator
(ETC) OFF/ON switch near the instrument.
Fit the Starter button and the keyed Master switch if using one, tighten using pliers.
The earth busbar(s) have earthing tags that must now be bent up 90° - use a screwdriver and
pliers to bend each tag up, circled in photo below. These tags will be used as earth terminals.
Bolt the main busbar across the lower side of the bottom contacts on the 5 and 10 amp circuit
breakers only using the M3 silver screws and Nyloc nuts as shown above. Tighten firmly
only: these screws and nuts are very small so take care not to over-tighten them.
Note that the main busbar does
not
connect to the
Master
15 amp circuit breaker.
Fit the black “U” shaped safety bracket between the Mag switches.
Now the Avionics busbar can be fitted.
For a Standard panel the avionics busbar is located behind the “No Smoking” label above the
engine instrumentation, see photo at left above – hold the busbar against the front of the panel
and carefully mark and drill through the hole in each end of the busbar, first positioning the
busbar so that the screw holes will not obscure the labelling.
For a Jumbo panel the avionics busbar will be located vertically to the right of the analogue
instruments as shown in the photo above right.
Standard panel
Digital panel