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(a) Make sure that the spoiler No. 2 moves 32 +/-3 degrees up from the retracted position.
(b) Make sure that the spoiler No. 4 moves 37 +/-3 degrees up from the retracted position.
(c) Make sure the spoiler No. 9 is in the retracted position.
SUBTASK 27-61-61-020-009
(7) Turn the wheel clockwise until the spoiler No. 2 starts to retract.
(a) Make sure the control wheel is a minimum of 70 degrees counterclockwise.
SUBTASK 27-61-61-020-010
(8) Turn the wheel clockwise until the spoiler No. 2 is fully retracted.
(a) Make sure the spoiler is fully retracted when the control wheel is 5 +/-3 degrees
counterclockwise.
SUBTASK 27-61-61-820-004
(9) If the operation of the spoilers is not in the limits, adjust the applicable flight spoiler actuator
linkage. To adjust, do this task: Spoiler Actuator Linkage Adjustment, TASK 27-61-00-820-804.
SUBTASK 27-61-61-410-002
(10) Put the Airplane Back to Its Usual Condition
(a) Do this task: Put the Spoiler Hydraulic systems A and B Back to the Condition Before
the Pressurization, TASK 27-61-00-840-801.
(b) Remove the mount, SPL-1670 and the control column assembly protractor, SPL-1680 from
the captain’s aileron control wheel.
(c) Remove the protractor, COM-1691 from the spoilers No. 2, 4, 9 and 11.
------------------------- END OF TASK ---------------------------
737-600/700/800/900
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SPEED BRAKE CONTROL SYSTEM - MAINTENANCE PRACTICES
1. General
A. This procedure has these tasks:
(1) Speed brake Hydraulic Systems A and B Pressurization
(2) Put the Speed Brake Hydraulic Systems A and B Back to the Condition before the Pressurization
(3) Remove Pressure from the Speed Brake Hydraulic Systems A and B
(4) Put the Speed Brake Hydraulic Systems A and B Back to the Condition before the Pressure
Removal
B. Hydraulic systems A, B must have pressure removed before maintenance is done on the speed
brake control system. This is to prevent injury to persons because of accidental operation of the
control system while you do maintenance. You must be careful to put maintenance stands and
equipment away from control surface travel.
C. Electric pump 1 pressurizes the hydraulic system B and electric pump 2 pressurizes the hydraulic
system A. Electric pump 1 heat exchanger is installed in the fuel tank 2. Electric pump 2 heat
exchanger is installed in the fuel tank 1.
D. This procedure operates the electric hydraulic system A or B pumps to pressurize the hydraulic
systems A and B. Pressurization of the hydraulic systems with the engine-driven hydraulic pumps is
not included in this procedure.
TASK 27-62-00-800-801
2. Speed Brake Hydraulic Systems A and B Pressurization
(Figure 201)
A. References
Reference Title
12-12-00-610-801 Hydraulic Reservoir Servicing (P/B 301)
24-22-00-860-811 Supply Electrical Power (P/B 201)
32-00-01-480-801 Landing Gear Downlock Pins Installation (P/B 201)
B. 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
210 Subzone - Control Compartment - Body Station 178.00 to Body
Station 259.50
C. Procedure
SUBTASK 27-62-00-860-001
(1) Do this task: Supply Electrical Power, TASK 24-22-00-860-811.
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
EFFECTIVITY
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SUBTASK 27-62-00-860-174
CAUTION: DO NOT OPERATE THE SYSTEM A OR B HYDRAULIC PUMPS FOR MORE THAN TWO
MINUTES WITHOUT FUEL IN THE FUEL TANKS. THE NO. 1 (FOR SYSTEM A) AND NO.
2 (FOR SYSTEM B) FUEL TANKS MUST HAVE A MINIMUM OF 250 GALLONS (1675
POUNDS/760 KILOGRAMS) OF FUEL IN THEM. IF THERE IS NOT SUFFICIENT FUEL IN
THE FUEL TANKS, THE HYDRAULIC SYSTEMS WILL BECOME TOO HOT.
(2) Make sure the No. 1 and No. 2 fuel tanks each have 250 gallons (1675 pounds/760 kilograms) of
fuel in them.
SUBTASK 27-62-00-210-001
(3) Make sure the hydraulic reservoirs are full. To fill it, do this task: Hydraulic Reservoir
Servicing, TASK 12-12-00-610-801.
SUBTASK 27-62-00-860-002
(4) Make sure that this circuit breaker is closed:
F/O Electrical System Panel, P6-2
Row Col Number Name
B 12 C00204 FLIGHT CONTROL SHUTOFF VALVES SPOILER
SUBTASK 27-62-00-860-003
(5) Set the parking brake.
SUBTASK 27-62-00-480-001
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737-600-700-800-900 飞机维护手册6 AIRCRAFT MAINTENANCE MANUA(55)
