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(c) Install the new pin [37].
(d) Move the reaction link [29] to put the power control unit assembly [1] between the fork end
of the reaction link [29].
(e) Connect the power control unit assembly [1] to the reaction support assembly [27].
1) Install the bolt assembly [14], washers [25], bushings [26], washers [28] and nut [24].
2) Tighten the nut [24] to 300-350 pound-inches (33.9-39.5 newton-meters).
3) Install the washer [21], nut [22] and new pin [23].
NOTE: Tighten the nut [22] to the lower end of the torque range. Continue to tighten
the nut until the next castellation aligns with the hole in the bolt assy [14].
(f) Apply sealant, A00247 to the bolt [15] and spacer [16].
(g) Install the bolt [15], spacer [16], washers [17], washer [19] and nut [20] to connect the safety
link [18] to the reaction support assemnbly [27].
(h) Connect the bracket assemblies to the power control unit assembly [1] with bolts [30],
washers [31], bolt [32] and washer [33].
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(i) Connect the pogos [7] to the power control unit assembly [1] with bolts [8], washers [9],
bushings [10], washers [11], nuts [12] and new pin [13].
NOTE: You must install the bolt [8] with the bolt head up. Tighten the nuts [12] to the
lower end of the torque range. Continue to tighten the nuts until the next
castellation aligns with the hole in the bolts [8].
SUBTASK 27-11-71-020-003
(5) Remove the caps and plugs from the hydraulic lines [4] and ports.
SUBTASK 27-11-71-420-003
(6) Connect the hydraulic lines [4] to the power control unit assembly [1].
SUBTASK 27-11-71-860-003
(7) Do this task: Supply Electrical Power, TASK 24-22-00-860-811.
SUBTASK 27-11-71-860-004
WARNING: MAKE SURE ALL PERSONS AND EQUIPMENT ARE 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 INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
(8) To pressurize hydraulic systems A and B, do this task: Hydraulic System A or B
Pressurization, TASK 29-11-00-860-801.
SUBTASK 27-11-71-860-005
(9) Operate the aileron control wheel to bleed the system.
SUBTASK 27-11-71-790-001
(10) Examine the connections of the power control unit assembly [1] for leaks.
SUBTASK 27-11-71-860-006
(11) To remove power from hydraulic systems A and B, do this task: Hydraulic System A or B
Power Removal, TASK 29-11-00-860-805.
SUBTASK 27-11-71-860-007
(12) Do this task: Put the Aileron Hydraulic Systems A and B Back to the Condition Before
Pressure Removal, TASK 27-11-00-860-802.
SUBTASK 27-11-71-820-001
(13) Do this task: Pogo and Power Control Unit (PCU) Adjustment, TASK 27-11-00-820-802.
SUBTASK 27-11-71-710-001
(14) Do this task: Aileron Response (Operational) Test, TASK 27-11-00-710-801.
SUBTASK 27-11-71-730-001
(15) Do this task: Aileron Travel Test, TASK 27-11-00-700-809.
------------------------- END OF TASK ---------------------------
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AILERON FEEL AND CENTERING UNIT - REMOVAL/INSTALLATION
1. General
A. This procedure has these tasks:
(1) A removal of the aileron feel and centering unit
(2) An installation of the aileron feel and centering unit.
B. The aileron feel and centering unit is referred to as the "centering unit" in this procedure.
TASK 27-11-81-000-801
2. Aileron Feel and Centering Unit Removal
A. References
Reference Title
25-22-00-000-801 Passenger Seat Removal (P/B 401)
25-27-15-000-801 Carpet Removal (P/B 401)
27-11-00-860-801 Remove Pressure from the Aileron Hydraulic Systems A and B
(P/B 201)
32-00-01-480-801 Landing Gear Downlock Pins Installation (P/B 201)
53-21-00-000-801 Passenger Cabin Floor Panel Removal (P/B 401)
B. 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-1585 Kit - Rigging Pins, All Systems
(Part #: F70207-109, Supplier: 81205, A/P Effectivity: 737-600, -700,
-700C, -700ER, -700QC, -800, -900, -900ER, -BBJ)
SPL-1671 Straightedge - Control Wheel
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737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL飞机维护手册2(10)
