Embraer EMB145 - Page 1959

LANDING GEAR AND
BRAKES
AIRPLANE
OPERATIONS
MANUAL
2-12-05
Page
6
Code
01
REVISION 38
AOM-145
/
1114
This mechanically actuates the Free-Fall Selector Valve and unlocks
the three landing gear legs uplocks. The Free-Fall Selector Valve
isolates the hydraulic system pressure and connects the landing gear
system hydraulic lines to the return. With the system unpressurized
and the uplocks deactivated, all gear legs fall by gravity until they
reach their downlock devices. If one main gear does not lock down,
increase the aerodynamic drag by side slipping the airplane to help
lock the affected leg.
Once actuated, the free-fall lever remains locked in the vertical
position until mechanically released.
LANDING GEAR WARNING
A LANDING GEAR voice message is provided to alert pilots any time
the airplane is in a landing configuration and the gear legs are not
locked down. The warning may be activated under one of three
conditions:
1. Radio Altitude below 1200 ft, Flap Selector Lever set lower than
22°, one thrust lever set below 59° and the other thrust lever set
below 45° (or the associated engine inoperative).
NOTE: In case of Radio Altimeter loss, the message may be
activated at any altitude, but may be canceled through the
Landing Gear Warning Cutout Button.
2. Radio Altitude below 1200 ft, Flap Selector Lever between 22° and
45°, one thrust lever set below 59° and the other thrust lever set
below 45° (or the associated engine inoperative).
NOTE: - The Voice message cannot be canceled.
- In case of Radio Altimeter loss, the message may be
activated at any altitude.
3. Flap Selector Lever set at 45°.
NOTE: The Voice message cannot be canceled.