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General Information and Operating Instructions
PUSHBACK TRACTOR CHALLENGER550
Jan 28/19
Unintended rolling of the CHALLENGER550!
The CHALLENGER550 can roll when the engine is running and run over persons or crush them.
Running over or crushing persons can result in death or serious injuries.
Secure the CHALLENGER550 with the parking brake against rolling.
Always shift into "neutral" before exiting the driver's cab.
Do not leave the CHALLENGER550 unsupervised when the engine is running.
Incorrectly performed inspection work!
Failure to follow the given sequence may result in damage to the CHALLENGER550.
First, perform all the checks for which the engine has to be off.
Engine or gearbox damage!
If the oil level is too high or too low, this can result in damage to the engine or gearbox.
Make sure that the oil level never goes above the "MAX" marking and never below the "MIN"
marking.
Use only authorized types of oil.
Property of American Airlines
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