TF3 - Manual
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4.8 Direction Indicator Lights
On top of the aircraft tug there are direction indicators, which show the direction in which
the tug is moving. The LEDs show the direction before the tug starts to move, if the joystick is
pushtly gently.
4.9 Status-LED
There are two status LEDs directly next to the direction indicator lights. The LED on the left in
the direction of travel indicates that the aircraft tractor is ready for operation as soon as the
power supply is switched on. After the radio connection has been established, this is indicated
by the LED on the right in the direction of travel. If the aircraft tractor is switched o, none of
the LEDs is illuminated.
4.10 MDI Display
The multifunction display shows the operating hours during normal operation. During the
start-up sequence, the display rst shows the software version of the drive control system.
If there is a malfunction in the aircraft tug, this is indicated by the red LED and an error code in
the display.
The MDI display is located on the cover above the type plate.
Multi Functional Display
On the MDI the operating hours of the aircraft tug are displayed. On delivery, up
to 12 hours may already be shown on it, due to production processes and func-
tional tests.
ATTENTION! When the tug is not being used or charged, make sure that both
battery disconnectors are deactivated (pressed). Otherwise there is a risk of the
batteries becoming deeply discharged and irreparably damaged!
Operating Hours
speed reduction
maintenance interval
battery charge
Alarm LED
Errors/
Hours
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