Aircraft Service Manual
Jabiru Aircraft
Pty Ltd
JTM001-1
J120, J160, J170, J200/J400, J230/J430, J250/J450 Variants
REVISION
1
Dated: Nov 2011
Issued By: SW
Page: 211 of 233
Figure 184
– Night-VFR Lighting Sheet 2
16.2 MINOR ELECTRICAL EQUIPMENT
16.2.1 BUS BARS
Electrical power for electrical equipment and installations is supplied through Bus Bars. The bus
bars are mounted to the circuit breakers inside the main panel.
Access is gained by removing the main instrument panel fascia.
16.2.2 MASTER SWITCH
When using a key switch, the Master Switch activates a relay which in turn powers the bus bars.
When using a toggle switch, it activates the power direct from the battery.
Refer to Wiring Diagram for details.
16.2.3 STARTER SOLENOID
The starter solenoid is a sealed unit. Service is limited to inspection of terminals for security and
replacement of the unit.
Note that the body of some starter solenoids used in Jabiru Aircraft form the earth connection. If
there is excess resistance between the solenoid body and the electrical system earth then a
connection will not be made and solenoid issues will result.
Later solenoids have a separate connector for the earth
– i.e. they do not earth through the solenoid
body.
To determine which solenoid is which check for continuity between the earth pole and the body of the
solenoid. No continuity indicates the need for a separate earth connection.
16.2.4 VOLTAGE REGULATOR
The voltage regulator is a sealed unit. Service is limited to inspection of terminals for security and
replacement of the unit.
