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Spoiler Position Sensor Installation
Figure 401 (Sheet 1 of 2)/27-61-04-990-801
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
EFFECTIVITY
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Spoiler Position Sensor Installation
Figure 401 (Sheet 2 of 2)/27-61-04-990-801
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
EFFECTIVITY
GUN ALL 27-61-04
Page 404
Oct 10/2003
D633A101-GUN
BOEING PROPRIETARY - Copyright#Unpublished Work - See title page for details
TASK 27-61-04-400-801
3. Spoiler Position Sensor Installation
(Figure 401)
A. References
Reference Title
27-51-00-860-803 Extend the Trailing Edge Flaps (P/B 201)
27-51-00-860-804 Retract the Trailing Edge Flaps (P/B 201)
27-61-00-800-802 Remove Pressure from the Spoiler Hydraulic Systems A and B
(P/B 201)
27-61-00-820-808 Spoiler Position Sensor Adjustment (P/B 501)
SWPM 20-60-03 Standard Wiring Practices Manual
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-1745 Set - Lock, Flight Spoiler Actuator (Contains 8 Lock Assemblies)
(Part #: C27047-19, Supplier: 81205, A/P Effectivity: 737-600, -700,
-700C, -700ER, -700QC, -800, -900, -BBJ)
C. Consumable Materials
Reference Description Specification
G02166 Lockwire - Nickel-Copper Alloy (Monel)(0.020 inch
Diameter)
NASM20995N~
C20
G50171 Compound - Corrosion Inhibiting Compound,
Interior Application - D5026NS or ZC-026
D. Location Zones
Zone Area
210 Subzone - Control Compartment - Body Station 178.00 to Body
Station 259.50
564 Left Wing - Spoiler No. 3
664 Right Wing - Spoiler No. 10
E. Prepare for the Installation
SUBTASK 27-61-04-860-007
(1) Make sure that you do these steps:
(a) Do this task: Extend the Trailing Edge Flaps, TASK 27-51-00-860-803.
(b) Set the speedbrake control lever to the UP position.
(c) Do this task: Remove Pressure from the Spoiler Hydraulic Systems A and B,
TASK 27-61-00-800-802.
(d) Make sure set, SPL-1745 is installed on the spoiler actuator No. 3 or No. 10.
F. Procedure
SUBTASK 27-61-04-820-001
(1) Align the reference marks on the sensor case and the sensor shaft.
737-600/700/800/900
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EFFECTIVITY
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SUBTASK 27-61-04-420-001
(2) Do the following steps to install the spoiler position sensor [1] (Figure 401):
(a) Put the spoiler position sensor [1] in the mounting bracket [6] and the crank [9] with the
zero reference alignment mark aligned with the slot in the crank [9].
(b) Tighten the bolt [7] in the crank [9] to 25-35 pound-inches (2.8-4.0 newton-meters).
(c) Tighten the bolt [2] in the mounting bracket [6] to 8-12 pound-inches (.9-1.4 newton-meters).
SUBTASK 27-61-04-420-002
(3) Do these steps to install the electrical connectors:
(a) Before you connect the electrical connectors, examine the connectors for corrosion.
WARNING: DO THE STEPS BELOW IF THE AIRPLANE OPERATES AT AIRPORTS WHERE
DEICING FLUID THAT CONTAIN POTASSIUM FORMATE IS USED. ALSO DO THE
STEPS FOR ALL AIRPLANES THAT YOU FOUND CORROSION IN THE
ELECTRICAL CONNECTORS IN THE MAIN WHEEL WELL. THE ELECTRICAL
CONNECTOR IS PART OF A SYSTEM THAT IS NECESSARY FOR SAFE FLIGHT.
(b) If there was corrosion, refer to (SWPM 20-60-03) to correct the problem.
(c) Apply the D5026NS or ZC-026 compound, G50171 to the connectors (SWPM 20-60-03).
(d) Connect the electrical connectors.
(e) Install lockwire, G02166 on the electrical connectors.
SUBTASK 27-61-04-800-001
(4) Remove the set, SPL-1745 from the spoiler actuator.
SUBTASK 27-61-04-820-002
(5) Do this task: Spoiler Position Sensor Adjustment, TASK 27-61-00-820-808.
SUBTASK 27-61-04-860-008
(6) Move the speedbrake lever to the DOWN position.
SUBTASK 27-61-04-860-009
(7) Do this task: Retract the Trailing Edge Flaps, TASK 27-51-00-860-804.
------------------------- END OF TASK ---------------------------
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