Aircraft Technical Manual
Jabiru Aircraft
Pty Ltd
J120, J160, J170, J200/J400, J230/J430, J250/J450 Variants
This document is controlled while it remains on the Jabiru server. Once this no longer applies the document becomes uncontrolled.
ISSUE
1
2
3
4
5
Dated: 29th October 2014
Issued By: AS
Page: 69 of 298
-
Disconnect the fuel line from the carburettor. Using a length of fuel hose added to the fuel line
pump out the fuel from the system using the auxillary electric pump and gravity. Ensure the fuel
tap is turned off before removing the fuel line extension and re-connecting the line to the
carburettor.
-
Remove the fuel drain from each fuel tank at a time and drain the fuel out this way. This method
is faster than the previous but has the potential for spilling a lot of fuel. You also still need to
drain fuel from the header tank via the engine fuel line.
If the fuel has been drained out using the wing fuel drains then a small amount of fuel needs to be
added to replace the unusable fuel. Add 1.5L to each wing tank to replace the unusable fuel. Note
that this does not need to be done if the fuel was drained by method 1. Check that the fuel drains
are not leaking after re-installation.
Next all the fuel lines from each tank need to clamped off so that fuel does not flow between tanks or
to the header tank. Use fuel line clamps as shown in Figure 31.
Figure 31
– Fuel Line Clamps (all J-Series, n/a J120)
Before starting the fuel gauge calibration the aircraft must be laterally (left & right) level. See the
Flight manual for the levelling datums.
When ready to start the fuel calibration turn the EMS on and do as follows.
-
Enter the EMS menu by pressing any button below an EMS main page and pressing MORE >
SETUP > MORE > FUEL. You are presented with the screen shown Figure 32. The menu
reflects the number of fuel tanks selected in the Global Parameters Setup. If you do not see the
correct number of tanks here, go back to the GLOBAL section of the SETUP menu and set the
correct number of tanks.
-
Repeat the following steps for each tank you wish to calibrate:
Use the DOWN▼ or UP▲ buttons to select the tank that you wish to calibrate, and press
SEL►.
Enter the approximate number of gallons or liters the tank can hold (Figure 33, left). In
this case it is 65L. Press NEXT.
Once you have confirmed that the tank you are calibrating is empty, press START (Figure
33, right).
Follow the on-screen instructions until the completion of your fuel calibration. Be aware
that if you make a mistake you can only totally clear the calibration for that tank - so you
have to start the calibration for that tank at the beginning again.
At the completion of your fuel level calibration, the EMS-D10 will present you with a table
of values in the
format “pour #: mV gallons/litres”. If you wish, record these numbers for
