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2) Remove the plugs from the hydraulic ports on the control valve assembly [1].
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3) Connect the hydraulic lines [3] to the control valve assembly [1].
SUBTASK 27-81-81-080-001
(3) Remove the rig pin [16] from the flap control unit [6].
SUBTASK 27-81-81-860-003
WARNING: MAKE SURE PERSONS AND EQUIPMENT ARE CLEAR OF THE LEADING EDGE FLAPS
AND SLATS AND THE TRAILING EDGE FLAPS. THE LEADING EDGE FLAPS AND
SLATS AND THE TRAILING EDGE FLAPS CAN MOVE QUICKLY. THIS CAN CAUSE
INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
(4) Use the primary system to extend and retract the flaps and slats. To extend and retract the flaps
and slats, do this task: Leading Edge Flap and Slat System Operation With Primary Control,
TASK 27-81-00-860-801.
SUBTASK 27-81-81-210-001
(5) Examine the hydraulic lines at the control valve for leakage.
SUBTASK 27-81-81-820-001
(6) Do this task: Leading Edge Flap and Slat Control Valve Adjustment, TASK 27-81-81-820-801.
SUBTASK 27-81-81-420-003
(7) Install the lower pan [8] on the flap control unit [6].
(a) Put the lower pan [8] in its location on the flap control unit [6].
(b) Apply compound, C00913 to the shank and threads of the screws [7].
(c) Install the screws [7] to attach the lower pan [8] to the flap control unit [6].
E. Put the Airplane Back to Its Usual Condition
SUBTASK 27-81-81-610-001
(1) If it is necessary to fill the hydraulic reservoirs, do this task: Hydraulic Reservoir Servicing,
TASK 12-12-00-610-801.
------------------------- END OF TASK ---------------------------
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LEADING EDGE FLAP AND SLAT CONTROL VALVE - ADJUSTMENT/TEST
1. General
A. This procedure has a task to adjust the leading edge flap and slat control valve.
TASK 27-81-81-820-801
2. Leading Edge Flap and Slat Control Valve Adjustment
(Figure 501)
A. References
Reference Title
27-81-00-700-802 Leading Edge Flap and Slat Timing Test in Primary Mode (P/B 501)
27-81-00-860-804 Leading Edge Flaps and Slats Retraction (P/B 201)
32-00-01-480-801 Landing Gear Downlock Pins Installation (P/B 201)
B. Consumable Materials
Reference Description Specification
C00913 Compound - Nondrying Resin Mix Corrosion
Inhibiting Material
BMS3-27
G01048 Lockwire - Corrosion Resistant Steel (0.032 In. Dia.) NASM20995~
C32
C. Location Zones
Zone Area
133 Main Landing Gear Wheel Well, Body Station 663.75 to Body Station
727.00 - Left
211 Flight Compartment - Left
212 Flight Compartment - Right
D. Prepare for the Adjustment
SUBTASK 27-81-81-480-003
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 27-81-81-860-004
(2) If the leading edge flaps and slats are not in the retract position, do this task: Leading Edge
Flaps and Slats Retraction, TASK 27-81-00-860-804.
SUBTASK 27-81-81-010-001
(3) Remove the lower pan [3] from the flap control unit [1]:
(a) Remove the screws [4] that attach the lower pan [3] to the flap control unit [1].
(b) Remove the lower pan [3].
SUBTASK 27-81-81-420-004
(4) Install the rig pin [7] through the cam follower arm [6] and the valve cam [5].
E. Leading Edge Flap and Slat Control Valve Adjustment
SUBTASK 27-81-81-820-002
(1) Do the adjustment of the leading edge flap and slat control valve [2]:
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(a) Remove the lockwire, G01048.
(b) Loosen the jam nut [14].
(c) Remove the nut [10], washer [9], and bolt [8].
(d) Turn the rod end [13] in 180 degree increments until you can get the valve slide [11] and the
index surface [12] to align.
(e) Install the bolt [8].
(f) Make sure the valve slide [11] aligns with the index surface [12].
(g) Install the washer [8] and nut [10].
(h) Make sure the dimension from the center of the rod end [13] to the jamnut [14] is not more
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737-600-700-800-900 飞机维护手册7 AIRCRAFT MAINTENANCE MANUA(96)
