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EFFECTIVITY
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Aileron Cable Adjustment
Figure 502 (Sheet 2 of 2)/27-11-00-990-803
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
EFFECTIVITY
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TASK 27-11-00-820-802
3. Pogo and Power Control Unit (PCU) Adjustment
A. References
Reference Title
29-11-00-860-801 Hydraulic System A or B Pressurization (P/B 201)
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. 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)
C. Consumable Materials
Reference Description Specification
G01912 Lockwire - Monel (0.032 In. Dia.) NASM20995N~
C32
(QQ-N-281)
G02436 Lockwire - Monel (0.040 In. Dia.) NASM20995N~
C40
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. Prepare for the Adjustment
SUBTASK 27-11-00-480-008
WARNING: MAKE SURE THE DOWNLOCK PINS ARE INSTALLED ON ALL THE LANDING GEARS.
WITHOUT THE DOWNLOCK PINS, THE LANDING GEARS COULD RETRACT AND
CAUSE INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT.
(1) If the downlock pins are not installed on all the landing gears, do this task: Landing Gear
Downlock Pins Installation, TASK 32-00-01-480-801.
SUBTASK 27-11-00-860-020
WARNING: MAKE SURE ALL PERSONS AND EQUIPMENT ARE CLEAR OF THE FLIGHT CONTROL
SURFACES, THE THRUST REVERSERS, AND THE LANDING GEAR. THE CONTROL
SURFACES, THE THRUST REVERSERS, AND THE LANDING GEAR CAN MOVE
SUDDENLY WHEN YOU SUPPLY HYDRAULIC POWER. THIS CAN CAUSE INJURY TO
PERSONS AND DAMAGE TO EQUIPMENT.
(2) To pressurize hydraulic systems A and B, do this task: Hydraulic System A or B
Pressurization, TASK 29-11-00-860-801.
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
EFFECTIVITY
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SUBTASK 27-11-00-860-021
(3) Operate the aileron trim switches on the control stand panel, P8, until you can freely install and
remove the rig pin A/S-15, from the rig pin kit, SPL-1585, in the aileron trim actuator (Figure 501).
SUBTASK 27-11-00-860-022
(4) 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.
F. Pogo and the Power Control Unit (PCU) Adjustment
SUBTASK 27-11-00-860-023
(1) Make sure you can freely install and remove the rig pin A/S-4, from the rig pin kit, SPL-1585, in
the aileron bus drum (Figure 501).
SUBTASK 27-11-00-820-007
(2) If you cannot easily install and remove the rig pin A/S-4, adjust the pogos [1] in the specified
sequence:
NOTE: When adjustment of the four pogos is necessary, make sure you follow these
instructions in the specified sequence. Incorrect adjustment of the upper and lower
pogos on system A or B PCU when adjusted in the opposite directions will cause the
incorrect condition of ’free fit’ of rig pin A/S 4.
(a) Disconnect the upper and lower pogos from system B PCU and the upper pogo from
system A PCU.
1) Remove the pins [8], nuts [7], washers [6], bushings [5], washers [4] and bolts [3] to
disconnect the four pogos [1] from the power control units.
(b) Adjust the lower (primary) pogo [1] on system A PCU:
NOTE: The initial length of the pogo is approximately 13.78 inches (350.1 millimeters) and
the drain holes are down.
WARNING: MAKE SURE ALL PERSONS AND EQUIPMENT ARE CLEAR OF THE
FLIGHT CONTROL SURFACES, THE THRUST REVERSERS, AND THE
LANDING GEAR. THE CONTROL SURFACES, THE THRUST REVERSERS,
AND THE LANDING GEAR CAN MOVE SUDDENLY WHEN YOU SUPPLY
HYDRAULIC POWER. THIS CAN CAUSE INJURY TO PERSONS AND
DAMAGE TO EQUIPMENT.
1) Pressurize hydraulic system A, do this task: Hydraulic System A or B Pressurization,
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737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL飞机维护手册1(107)
