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Before Pressure Removal (P/B 201)
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)
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
EFFECTIVITY
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(Continued)
Reference Title
32-00-01-480-801 Landing Gear Downlock Pins Installation (P/B 201)
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
COM-1554 Tensiometer - Cable (40-600 LB)
(Part #: ACM-600, Supplier: 13331, A/P Effectivity: 737-ALL)
(Part #: T60 1001-C9-1A, Supplier: 0N8U4, A/P Effectivity: 737-ALL)
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
(Part #: SE27-0001, Supplier: 81205, A/P Effectivity: 737-100, -200,
-200C, -300, -400, -500, -600, -700, -700C, -700ER, -700QC, -800, -900,
-900ER, -BBJ)
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
211 Flight Compartment - Left
212 Flight Compartment - Right
E. Access Panels
Number Name/Location
112A Forward Access Door
F. Prepare for the Adjustment
SUBTASK 27-11-00-480-002
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 27-11-00-010-001
(2) If you adjust the cables AA and AB or cables ACBA and ACBB, open this access panel:
Number Name/Location
112A Forward Access Door
SUBTASK 27-11-00-860-061
(3) Do this task: Remove Pressure from the Aileron Hydraulic Systems A and B,
TASK 27-11-00-860-801.
SUBTASK 27-11-00-480-003
(4) Use a 40 - 600 lb cable tensiometer, COM-1554 to get the tension measurement.
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EFFECTIVITY
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G. Aileron Transfer Cables ACBA and ACBB Adjustment
SUBTASK 27-11-00-860-062
(1) Make sure the captain’s and the first officer’s control wheels are in the neutral position:
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.
(a) Pressurize hydraulic systems A and B, do this task: Hydraulic System A or B
Pressurization, TASK 29-11-00-860-801.
(b) 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 (Figure 501).
(c) 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 27-11-00-480-004
(2) Attach the straightedge, SPL-1671 across the top ends of the two control wheels.
SUBTASK 27-11-00-820-020
(3) Make sure that one end of the First Officer’s control wheel is no more than 0.20 inch (5.1
millimeters) from the straightedge, SPL-1671.
SUBTASK 27-11-00-820-001
(4) If you install new cables ACBA and ACBB, do these steps to adjust the cables (Figure 502):
(a) Adjust the cables until you can easily install and remove rig pin A/S-1A, from the rig pin kit,
SPL-1585, in the aileron transfer mechanism (Figure 501).
(b) Tighten the turnbuckles on the cables to get the tension two times the specified cable
rigging load for cables ACBA and ACBB (Table 501).
Table 501/27-11-00-993-809 Aileron Cable Rigging Load
Temperature 8Fahrenheit
(8Celsius)
Cable Rigging Load pounds (newtons)
AA & AB ABSA & ABSB ACBA & ACBB
High Low High Low High Low
110 (43.3) 143 (636) 133 (592) 263 (1170) 253 (1125) 108 (480) 78 (347)
109 (42.8) 143 (636) 133 (592) 262 (1165) 252 (1121) 108 (480) 78 (347)
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737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL飞机维护手册1(101)
