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SUBTASK 27-51-53-860-002
(1) Open this circuit breaker and install safety tag:
F/O Electrical System Panel, P6-2
Row Col Number Name
D 13 C00841 FLIGHT CONTROL ALTN T.E. FLAP DRIVE
SUBTASK 27-51-53-020-001
(2) Disconnect the electrical connector [5] from the motor assembly [2].
SUBTASK 27-51-53-020-002
(3) Remove the motor assembly [2]:
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(a) Remove the screw [8], washers [9] and nut [10] that attach the jumper wire [7] to the motor
assembly [2].
(b) Remove the bolts [4] and washers [3] that attach the motor assembly [2] to the PDU [1].
(c) Remove the motor assembly [2] from the PDU [1].
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Flap Electric Motor Installation
Figure 401 (Sheet 1 of 2)/27-51-53-990-801
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Flap Electric Motor Installation
Figure 401 (Sheet 2 of 2)/27-51-53-990-801
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TASK 27-51-53-400-801
3. Flap Electric Motor Installation
(Figure 401)
A. References
Reference Title
12-22-51-610-805 Trailing Edge Flap Electric Motor Servicing (P/B 301)
24-22-00-860-811 Supply Electrical Power (P/B 201)
27-51-00-860-802 Trailing Edge Flap System Operation With Alternate Control (P/B 201)
SWPM 20-60-03 Standard Wiring Practices Manual
B. Consumable Materials
Reference Description Specification
A00247 Sealant - Pressure And Environmental - Chromate
Type
BMS5-95
A02315 Sealant - Low Density, Synthetic Rubber. 2 Part BMS5-142
C00913 Compound - Nondrying Resin Mix Corrosion
Inhibiting Material
BMS3-27
D00633 Grease - Aircraft General Purpose BMS3-33
G50171 Compound - Corrosion Inhibiting Compound,
Interior Application - D5026NS or ZC-026
C. Expendables/Parts
AMM Item Description AIPC Reference AIPC Effectivity
2 Motor assembly 27-51-51-01-060 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 Electric Motor Installation
SUBTASK 27-51-53-860-003
(1) Make sure that this circuit breaker is open and has safety tag:
F/O Electrical System Panel, P6-2
Row Col Number Name
D 13 C00841 FLIGHT CONTROL ALTN T.E. FLAP DRIVE
SUBTASK 27-51-53-420-001
(2) Install the motor assembly [2]:
(a) Apply a layer of grease, D00633 to the splined shaft [6] on the motor assembly [2].
(b) Fill the area between the motor assembly [2] and the PDU [1] with grease, D00633.
(c) Apply a thin layer of compound, C00913 to the mating surface of the motor assembly [2] and
the PDU [1].
(d) Put the motor assembly [2] in its position on the PDU [1].
(e) Apply compound, C00913 to the shank and threads of the bolts [4].
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(f) Install the bolts [4] and washers [3] to attach the motor assembly [2] to the PDU [1].
(g) Tighten the bolts [4] to 50-60 pound-inches (5.7-6.7 newton-meters) more than the run-on
torque.
(h) Install lockwire on the bolts [4].
SUBTASK 27-51-53-420-002
(3) Connect the jumper wire [7] to the motor assembly [2]:
(a) Install the screw [8], washers [9] and nut [10] to attach the jumper wire [7].
(b) Make sure the resistance between the jumper wire [7] and the motor assembly [2] is less
than 0.4 milliohms.
NOTE: When you measure the resistance, the probe can be closer than 0.25 inches (6.4
millimeters) to the jumper terminal.
(c) Put a fillet seal of sealant, A02315 or sealant, A00247 around the two ends of the screw [8].
SUBTASK 27-51-53-210-001
(4) Before you connect the electrical connector [5], examine the connector for corrosion.
　
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