S 794-018
(10)
While the parking brake is set, make sure the pressure in the hydraulic brake accumulator stays near the initial 3000 |200 psi.
NOTE: Use the direct reading pressure gage for an indication of
____ pressure in the hydraulic brake accumulator.
S 794-041
(11)
While the parking brake is set, listen and feel for gas leaks at the gas charging valve.
F.
Put the Airplane Back to Its Usual Condition
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747-400 MAINTENANCE MANUAL
S 094-028
WARNING:_______ YOU MUST CAREFULLY DO THE STEPS IN THE TASK BELOW TO REMOVE THE
DOOR LOCKS FROM THE LANDING GEAR DOORS. THE DOORS CAN CLOSE
QUICKLY IF YOU DO NOT REMOVE THE DOOR LOCKS CORRECTLY. THIS
CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(1)
Do this task: "Removal of the Door Locks from the Wing Landing Gear" (AMM 32-00-30/201).
S 094-029
(2)
Do this task: "Removal of the Door Locks from the Body Landing Gear" (AMM 32-00-30/201).
S 864-021
(3)
Remove pressure from hydraulic system 4, if it is not necessary (AMM 29-11-00/201).
S 864-046
(4)
Remove electrical power, if it is not necessary (AMM 24-22-00/201).
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747-400 MAINTENANCE MANUAL
HYDRAULIC BRAKE ACCUMULATOR DIRECT READING PRESSURE GAGE -
________________________________________________________ REMOVAL/INSTALLATION
____________________
1. General_______
A. This procedure contains two tasks:
(1)
The removal of the hydraulic brake accumulator direct reading pressure gage
(2)
The installation of the hydraulic brake accumulator direct reading pressure gage.
B.
In subsequent steps, the hydraulic brake accumulator direct reading pressure gage is referred to as the pressure gage.
C.
The pressure gage is part of the hydraulic brake accumulator charging equipment installation.
D.
The pressure gage is installed on the center web of the keel beam in the wheel well for the right body gear.
TASK 32-41-11-004-001
2. Hydraulic Brake Accumulator Direct Reading Pressure Gage Removal (Fig. 401)________________________________________________________________
A. General
(1)
In subsequent steps, the hydraulic brake accumulator direct reading pressure gage is referred to as the pressure gage.
B.
References
(1)
AMM 09-11-00/201, Towing
(2)
AMM 24-22-00/201, Manual Control
(3)
AMM 29-11-00/201, Main Hydraulic Supply System
(4)
AMM 32-00-30/201, Landing Gear Door Locks
(5)
AIPC 32-41-11 Fig. 1
C.
Access
(1)
Location Zone
138 Body Landing Gear Well - Right
D.
Prepare for the Removal
S 494-032
(1)
Make sure the landing gear ground locks are installed (AMM 09-11-00/201).
(2)
Make sure the wheel chocks are installed.
S 844-033
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747-400
MAINTENANCE MANUAL
HYDRAULIC BRAKE TUBING TO THEACCUMULATOR CHARGING HYDRAULIC BRAKEEQUIPMENT INSTALLATION 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：747-400 AMM 飞机维护手册 起落架 LANDING GEAR 6(80)
