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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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747-400 MAINTENANCE MANUAL
S 844-061
(9) Remove the pressure from hydraulic system No. 4 (AMM 29-11-00/201). S 864-078
WARNING:_______ MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF ALL CONTROL
SURFACES BEFORE YOU SUPPLY HYDRAULIC POWER. AILERONS, RUDDERS,
ELEVATORS, FLAPS, SPOILERS, LANDING GEAR AND THRUST REVERSERS
CAN MOVE QUICKLY WHEN YOU SUPPLY HYDRAULIC POWER. THIS CAN
CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
(10)
Do this task: "Supply Hydraulic Power for Hydraulic System No. 1" (AMM 29-11-00/201).
S 714-063
(11)
Push on the brake pedals slowly and fully five times to operate the brakes.
S 874-064
(12)
Bleed the brake lines from the antiskid valve to the brakes to remove air caught in the brake lines (AMM 32-41-00/201).
S 214-065
(13)
After five minutes, look for leaks at the fittings of the alternate antiskid module assembly.
S 864-066
(14)
Remove the DO-NOT-CLOSE tags and close these circuit breakers:
(a)
P180, DC Power Distribution Panel 1) 180J7, ANTI-SKID 1-3 2) 180J8, ANTI-SKID 14-16 3) 180F7, ANTI-SKID 2-4 4) 180F8, ANTI-SKID 13-15 5) 180J22, ANTI-SKID 5-7
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
32-42-02
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
6) 180J23, ANTI-SKID 10-12
7) 180F22, ANTI-SKID 6-8
8) 180F23, ANTI-SKID 9-11
S 724-067
(15)
Do the Brake System BITE Test procedure in the "Ground Tests - Brake Control System" task (AMM 32-42-00/501).
S 724-090
(16)
Do the Brake Release Test with the alternate brake hydraulic system (hydraulic system No. 1 or No. 2) at the wheel locations related to the new component.
NOTE: The Brake Release Test procedure is in the "Ground Tests -
____
Brake Control System" task (AMM 32-42-00/501).
S 864-080
WARNING: MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF ALL CONTROL
_______ SURFACES BEFORE YOU SUPPLY HYDRAULIC POWER. AILERONS, RUDDERS, ELEVATORS, FLAPS, SPOILERS, LANDING GEAR, AND THRUST REVERSERS CAN MOVE QUICKLY WHEN YOU SUPPLY HYDRAULIC POWER. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
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