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(c) Disconnect the turnbuckles [4].
SUBTASK 27-51-51-020-006
(10) Remove the power drive unit [21]:
(a) Remove the nuts [10], washers [9], washers [8], bolts [14] and bolt [7] attach the power
drive unit [21] to the structure.
(b) Remove the power drive unit [21].
SUBTASK 27-51-51-020-007
(11) If it is necessary, remove the cables [6] from the power drive unit [21]:
(a) Remove the pins [33] that attach the cables [6] to the cable drum [34].
(b) Remove the cables [6] from the cable drum [34].
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Figure 401 (Sheet 1 of 5)/27-51-51-990-801
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Figure 401 (Sheet 4 of 5)/27-51-51-990-801
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TASK 27-51-51-400-801
3. Flap Power Drive Unit (PDU) Installation
(Figure 401)
A. General
(1) You can remove and install the flap power drive unit with the hydraulic and electric motors either
removed or installed. This procedure covers the PDU installation with the hydraulic and electric
motors installed.
B. References
Reference Title
12-22-51-610-801 Trailing Edge Flap Power Drive Unit Servicing (P/B 301)
12-22-51-640-801 Trailing Edge Flap Torque Tube and Torque Tube Support
Lubrication (P/B 301)
27-51-00-440-801 Trailing Edge Flap System Reactivation (P/B 201)
27-51-00-820-801 Trailing Edge Flap Control System Adjustment (P/B 501)
27-51-00-820-802 Trailing Edge Flap Drive System Adjustment (P/B 501)
27-51-51-000-802 Flap Power Drive Unit Functional Test (P/B 501)
C. Tools/Equipment
NOTE: When more than one tool part number is listed under the same "Reference" number, the
tools shown are alternates to each other within the same airplane series. Tool part numbers
that are replaced or non-procurable are preceded by "Opt:", which stands for Optional.
Reference Description
SPL-1726 Clamp Set - Trailing Edge Flap Torque Tube
(Part #: C27022-1, Supplier: 81205, A/P Effectivity: 737-600, -700,
-700C, -700ER, -700QC, -800, -900, -900ER, -BBJ)
D. 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
E. Expendables/Parts
AMM Item Description AIPC Reference AIPC Effectivity
3 Clip 27-51-00-21-005 GUN 001-099, 155-157,
201-999
27-51-00-24-005 GUN 101-122
21 Power drive unit 27-51-51-01-055 GUN ALL
33 Pin 27-51-55-02-328 GUN 001-028, 101-121,
155-157, 201-999
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F. 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
　
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