OM-2245 / Operation and Maintenance Manual
ITW GSE 4400 / 400 Hz. Generator Set
March 15, 2015
Chapter 1-3
Page 6
2) Starting the 28 VDC ARU.
a) Insert the aircraft cable into the aircraft. Make sure the cable is inserted until you feel a natural
resistance. The plug may be equipped with a 90% insertion switch (split “C” pin). In this case, the
unit will not function if the plug not is fully inserted.
b) Press the 28 VDC Start/Stop button.
c)
The unit is now in operation and supplying power to the aircraft. This is also indicated via the
green LED located close to the 28VDC Start/Stop button.
d) If the unit shuts off and is no longer supplying power to the aircraft, this is reported in clear text in
the display. Also, a corrective action is displayed.
e) During operation, various parameters can be viewed via the display. Use the navigation keys
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