Normal Operations; Gear Retraction; Gear Extension - Eclipse 500 System Manual

Section 4. Landing Gear and Brakes

4.6 Normal Operations

4.6.1 Gear Retraction

When the gear handle is placed in the UP position, the ACS releases the three
actuator brakes and applies power to the gear motors in the retract direction. When
each gear folding brace moves away from the gear-down proximity sensor, the gear
position annunciation changes from green (Down and Locked) to amber/hatched (In
Transit).
The nose gear retracts forward into the nose wheel well. Each main gear retracts
inboard into the main gear wheel well.
When each gear reaches the up position, power is removed from the actuator motor
and the actuator brake is automatically set.
All gear doors are mechanically linked to the respective gear assembly. Movement of
the main gear causes the strut mounted main gear doors to close with the gear.
Movement of the nose gear opens two aircraft mounted forward nose gear doors,
allowing the gear to pass between them. As the nose gear retracts into the wheel
well, the two nose gear doors close along with an aft strut mounted door.
When each gear moves to the gear-up proximity sensor, the gear position
annunciation changes from amber/hatched (In Transit) to white bordered (Up and
Stowed). If all gear indicate Up and Stowed for ten seconds, the white borders and
the word "Gear" disappear.

4.6.2 Gear Extension

When the gear handle is placed in the DOWN position, the ACS releases the three
mechanical actuator brakes and applies power to the gear motors in the extend
direction. When each gear moves away from the gear-up proximity sensor, the gear
position annunciation reappears as amber/hatched (In Transit).
When each gear reaches the down position, power is removed from the actuator
motor and the actuator brake is automatically set.
The landing gear is mechanically held in the down position by the over-center
mechanism and the actuator brakes.
Movement of the nose gear opens and closes the forward nose gear doors for
passage of the gear. When the nose gear is extended, the forward nose gear doors
are closed while the aft door remains open.
When each gear moves to the gear-down proximity sensor, the gear position
annunciation changes from amber/hatched (In Transit) to green (Down and Locked).
Version 2.0 April 2007
Copyright © — Eclipse Aviation Corporation
Eclipse 5OO Systems Manual
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