AIRPLANE
OPERATIONS
MANUAL
GROUND SERVICING
REVISION 39
1-12-10
Page
3
Code
01
AOM-145/1114
CONTINUED FROM PREVIOUS PAGE
− If it is necessary to tow the airplane with hydraulic systems 1 or 2
pressurized (e.g., engines running):
− Keep hydraulic systems 1 and 2 pressurized.
− Make sure that the emergency/parking brake accumulator is
pressurized.
NOTE: To prevent hydraulic fluid transference from system 1
to system 2 or vice versa, always apply brakes with
the pedals before pulling and releasing the
emergency/parking brake handle.
− Set the emergency/parking brake handle up. Check if
emergency/parking brake light is ON.
− Disengage the steering system through the Steering Disengage
Button located on the control wheel (pilot or copilot). The STEER
INOP message is displayed on the EICAS.
NOTE: For airplanes Post-Mod. SB 145-32-0057 the steering system
is disengaged alternatively by ground personnel setting the
external steering disengagement switch to the “DISENGAGED”
position.
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