(15)
Push the captain's brake pedals fully and hold in this position.
NOTE: The parking brake may be set to avoid leg fatigue.
____
S 794-079
(16)
Make sure there is no leakage from the brake metering valve or fittings.
S 864-080
(17)
Examine each brake's wear indicator to make sure that all the brakes are engaged.
S 864-081
(18)
Release the brake pedals (or parking brake).
S 864-082
(19)
Examine each brake's wear indicator to make sure that all the brakes have released.
S 484-083
(20)
Insert rig pins 3 and 4 to make sure that the valves and cable system have returned to neutral.
(21)
Remove the pressure from hydraulic system No. 1 (AMM 29-11-00/201).
(22)
Pressurize hydraulic system No. 2 (AMM 29-11-00/201).
S 784-086
(23)
Make sure the pressure indication for hydraulic system No. 2 on the lower EICAS display shows 2900 - 3150 psi.
S 874-087
(24)
Push the brake pedals fully six times to bleed any air that may have entered the brake system.
S 864-084
S 864-085
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747-400 MAINTENANCE MANUAL
S 864-088
(25) Push the captain's brake pedals fully and hold in this position.
NOTE: The parking brake may be set to avoid leg fatigue.
____
S 794-089
(26)
Make sure there is no leakage from the brake metering valve or fittings.
S 864-090
(27)
Examine each brake's wear indicator to make sure that all the brakes are engaged.
S 864-091
(28)
Release the brake pedals (or parking brake).
S 864-092
(29)
Examine each brake's wear indicator to make sure that all the brakes have released.
S 484-093
(30)
Install rig pins 3 and 4 to make sure that the valves and cable system have returned to neutral.
S 864-094
(31)
Remove the pressure from hydraulic system No. 2 (AMM 29-11-00/201).
(32)
Install the ground locks in all landing gear (AMM 09-11-00/201).
S 864-103
(33)
Pressurize hydraulic systems No. 1 and 4 (AMM 29-11-00/201).
S 784-098
(34)
Make sure the pressure indication for hydraulic systems No. 1 and 4 on the lower EICAS display shows 2900 - 3150 psi.
S 494-105
WARNING:_______ YOU MUST CAREFULLY INSTALL THE GROUND LOCKS IN ALL LANDING
GEAR. AN ACCIDENTAL RETRACTION OF THE LANDING GEAR CAN CAUSE
INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
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747-400 MAINTENANCE MANUAL
S 614-109 CAUTION: MAKE SURE THE MAIN LANDING GEAR STRUTS ARE CORRECTLY SERVICED
_______ (AMM 12-15-03/301 AND AMM 12-15-04/301). IF THE STRUTS ARE NOT EXTENDED CORRECTLY, THE DOORS CAN HIT THE TIRES AND CAUSE DAMAGE TO THE DOOR.
(35) Make sure the struts are serviced correctly (AMM 12-15-03/301 and AMM 12-15-04/301).
S 864-106 WARNING: MAKE SURE ALL PERSONNEL ARE CLEAR OF ALL FIVE SETS OF GEAR
_______ DOORS. THE DOORS WILL MOVE RAPIDLY TO THEIR FULLY OPEN POSITION. THIS CAN CAUSE INJURY TO PERSONS.
(36) Move the landing gear lever to the UP position. NOTE: To do this, push the LOCK OVERRIDE button in while moving the
____
gear handle to the UP position.
(a) Make sure that each brake pressure begins to rise instantly. NOTE: You must fully open the right body gear door to achieve
____ the brake pressure. Hold or tie back the door in the full open position if the door actuator has been disconnected.
S 864-099
(37)
Examine each brake's wear indicator to make sure all the brakes are engaged.
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