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12 Packing 27-51-51-01-107 GUN ALL
D. Location Zones
Zone Area
133 Main Landing Gear Wheel Well, Body Station 663.75 to Body Station
727.00 - Left
134 Main Landing Gear Wheel Well, Body Station 663.75 to Body Station
727.00 - Right
E. Flap Hydraulic Motor Installation
SUBTASK 27-51-52-420-001
(1) If you will install a new motor assembly [3], install the reducers [4], elbow [9], valve [11],
packings [5], packing [12] as follows:
(a) Apply MCS 352B fluid, D00054 or fluid, D00153 to the new packings [5] and packing [12].
(b) Install the packings [5] and the reducers [4] in the motor assembly [3].
(c) Install the packing [12] and the valve [11] in the motor assembly [3].
(d) Install the elbow [9] in the valve [11].
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AIRCRAFT MAINTENANCE MANUAL
EFFECTIVITY
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BOEING PROPRIETARY - Copyright#Unpublished Work - See title page for details
SUBTASK 27-51-52-420-002
(2) Install the motor assembly [3]:
(a) Apply grease, D00633 to the splines on the output shaft [8] of the motor assembly [3]:
(b) Fill the space between the motor assembly [3] and the PDU [2] with grease, D00633.
(c) Apply a thin layer of compound, C00913 to the mating surface of the motor assembly [3] and
the PDU [2].
(d) Put the motor assembly [3] in its location on the PDU [2].
(e) Apply compound, C00913 to the shank and threads of the bolts [6].
(f) Install the bolts [6] and washers [7] to attach the motor assembly [3].
(g) Tighten the bolts [6] to 95-115 pound-inches (10.8-13.0 newton-meters).
SUBTASK 27-51-52-420-003
(3) Connect the hydraulic lines [1] to the motor assembly [3]:
(a) Remove the caps from the hydraulic lines [1].
(b) Remove the plugs from the ports on the motor assembly [3].
(c) Install the hydraulic lines [1] in the motor assembly [3].
SUBTASK 27-51-52-860-002
WARNING: KEEP PERSONS AND EQUIPMENT CLEAR OF THE FLIGHT CONTROL SURFACES, THE
THRUST REVERSERS, AND THE LANDING GEAR. THESE COMPONENTS CAN MOVE
SUDDENLY WHEN YOU SUPPLY HYDRAULIC POWER. THIS CAN CAUSE INJURIES TO
PERSONS AND DAMAGE TO EQUIPMENT.
(4) Supply system B hydraulic power, do this task: Hydraulic System A or B Pressurization,
TASK 29-11-00-860-801.
SUBTASK 27-51-52-710-001
(5) Use the primary system to extend and retract the flaps. To extend and retract the flaps, do this
task: Trailing Edge Flap System Operation With Primary Control, TASK 27-51-00-860-801.
SUBTASK 27-51-52-210-001
(6) Make sure there are no hydraulic leaks from the motor assembly [3].
F. Put the Airplane Back to Its Usual Condition
SUBTASK 27-51-52-860-003
(1) Remove system B hydraulic power, do this task: Hydraulic System A or B Power Removal,
TASK 29-11-00-860-805.
SUBTASK 27-51-52-610-001
(2) If it is necessary, fill the system B hydraulic reservoir. To fill the reservoir, do this task: Hydraulic
Reservoir Servicing, TASK 12-12-00-610-801.
------------------------- END OF TASK ---------------------------
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EFFECTIVITY
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FLAP ELECTRIC MOTOR - REMOVAL/INSTALLATION
1. General
A. This procedure has these tasks:
(1) A removal of the flap electric motor
(2) An installation of the flap electric motor.
B. The flap electric motor is installed on the flap power drive unit (PDU) in the main wheel well.
C. The flap electric motor weighs approximately 16 pounds (7.3 kilograms).
TASK 27-51-53-000-801
2. Flap Electric Motor Removal
(Figure 401)
A. References
Reference Title
29-11-00-860-805 Hydraulic System A or B Power Removal (P/B 201)
32-00-01-480-801 Landing Gear Downlock Pins Installation (P/B 201)
B. Location Zones
Zone Area
133 Main Landing Gear Wheel Well, Body Station 663.75 to Body Station
727.00 - Left
134 Main Landing Gear Wheel Well, Body Station 663.75 to Body Station
727.00 - Right
C. Prepare for the Removal
SUBTASK 27-51-53-480-001
WARNING: MAKE SURE THE DOWNLOCK PINS ARE INSTALLED ON ALL THE LANDING GEAR.
WITHOUT THE DOWNLOCK PINS, THE LANDING GEAR CAN RETRACT AND CAUSE
INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT.
(1) If the downlock pins are not installed in the nose and main landing gear, do this task: Landing
Gear Downlock Pins Installation, TASK 32-00-01-480-801.
SUBTASK 27-51-53-860-001
(2) Remove system B hydraulic power, do this task: Hydraulic System A or B Power Removal,
TASK 29-11-00-860-805.
D. Flap Electric Motor Removal
　
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