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General Information and Operating Instructions
PUSHBACK TRACTOR CHALLENGER550
Jan 28/19
J. Main battery switch
The main battery switch turns on and off the voltage supply for the control system of the CHALLEN-
GER550.
Figure 38: Main battery switch
Table 18: Switch settings of the main battery switch
Procedure when switching off the voltage supply:
(1) Inform the operating personnel.
(2) Bring the CHALLENGER550 into the specified parking position.
(3) Switch off the engine.
(4) Switch on the ignition (start switch to "I").
(5) Press the brake pedal about 15 to 20 times until the control lights "brake circuit 1" and "brake
circuit 2" light up.
(6) Press the parking brake about 10 to 15 times until the control light "parking brake control" lights
continuously.
(7) Turn the start switch to "0".
(8) Make sure that the engine is standing still.
(9) Set the main battery switch to "OFF".
(10) Attach a sign with the words "CHALLENGER550 lockout" to the instrument panel.
Switch positions Description
OFF Voltage supply off.
ON Voltage supply on.
OFF
ON
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