MD-11 Flight Crew Operations Manual
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Landing Gear and Brakes -
Controls and Displays
Land.30.6
Alternate Gear Extension
1. Center Gear Alternate Extension Handle
Pulling handle up will mechanically unlatch center gear and allow it to free
fall and lock in the down position. Before this can occur, the alternate gear
extension lever must be raised to position the landing gear control valve to a
bypass position.
To determine the position of the center gear, gently pull the center gear
alternate extension handle until a pronounced increase in resistance is felt (a
force of 10-15 pounds may extend the gear if a loss of hydraulic system 3
pressure has occurred). As long as the red band on the cable is not visible or
the bottom of the red band is at or below the floor level, the gear is up and
locked. If the bottom of the red band is above the floor level, the center gear
is unlocked.
2. Lever Release Pushrod Knob
To unlock alternate gear extension lever and return to stowed position, lift the
lever to relieve tension on link in detent, then press down on pushrod knob on
outboard side of lever and allow lever to return to stowed position.
3. Alternate Gear Extension Lever
Lifting lever will:
• Mechanically release all uplatches except center gear.
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2
3
FORWARD OF MAIN CIRCUIT
BREAKER PANELS ON FLOOR
ON FLOOR
RIGHT SIDE OF PEDESTAL
LB1-3-0164A
October 02, 2006