(2)
SYS 2 controls the CLCP right autopilot, the left outboard aileron, the right inboard aileron, and the No. 2, 3, 10 and 11 spoilers.
(3)
SYS 3 controls the CLCP left autopilot, the left inboard aileron, the right outboard aileron, and the No. 1, 4, 9 and 12 spoilers.
(4)
SYS 4 controls the CLCP left autopilot, the right inboard and outboard aileron, and the No. 5, 6, 7 and 8 spoilers.
TASK 27-13-00-705-001
2. Aileron and Spoiler Hydraulic Supply Shutoff Functional Test____________________________________________________________
A. References
(1)
AMM 24-22-00/201, Manual Control
(2)
AMM 29-11-00/201, Main Hydraulic Supply System
(3)
AIPC 27-13-01 Fig. 1
(4)
SSM 27-13-01
(5)
WDM 27-13-11
B.
Access
(1)
Location Zone 592 Outboard Aileron, LH 692 Outboard Aileron, RH 571 Rear Spar to Landing Gear Support Beam, LH 671 Rear Spar to Landing Gear Support Beam, RH
(2)
Access Panel Gain access to rear spar through wing gear wheel well door: 591BB Outboard Aileron, LH 691BB Outboard Aileron, RH
C.
Do a Test of the Aileron and Spoiler Hydraulic Supply Shutoff
(1)
Do this task: "Supply Electrical Power" (AMM 24-22-00/201).
S 865-002
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
27-13-00
ALL ú ú 01 Page 501 ú Oct 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
(2) S 865-003Make sure the FLT CONTROL HYD POWER - WING VALVE switches No. 1, 2, 3 and 4 on the P461 Pilot's Overhead Maintenance Panel are in NORM.
(3) S 725-005Make sure the VALVE CLOSED indicator lights are off.
(4) S 725-006Make sure the visual indicator lever on the bottom of the motor is in the valve open (POS 2) position.
(5) S 865-007Do this task to pressurize hydraulic systems No. 1 and 4: "Hydraulic System Pressurization with a Hydraulic Service Cart" (AMM 29-11-00/201).
S 865-032
WARNING: MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF THE LE AND TE
_______ FLAPS AND FLAP DRIVE MECHANISMS BEFORE YOU MOVE THE FLAP CONTROL LEVER. WITH HYDRAULIC POWER REMOVED, THE FLAPS WILL MOVE AUTOMATICALLY BY ELECTRICAL POWER WHEN YOU MOVE THE FLAP CONTROL LEVER.
(6)
Move the flap control lever to the full DOWN detent to extend the trailing edge flaps.
S 865-009
(7)
Remove hydraulic power from system No. 4.
S 725-027
(8)
Operate the control wheel.
S 725-010
(9)
Make sure all surfaces controlled by system No. 1 operate smoothly for the full range of travel.
S 865-011
(10)
Set the FLT CONTROL HYD POWER - WING VALVE switch No. 1 to SHUTOFF.
(a)
Make sure the valve motor operates smoothly until the valve travel comes to an end.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
27-13-00
ALL ú ú 01 Page 502 ú Oct 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
(b)
Make sure the visual indicator lever on the bottom of motor is in the valve closed (POS 1) position.
(c)
Make sure the VALVE CLOSED indicator light comes on.
(d)
Make sure surfaces controlled by system No. 1 do not operate.
S 865-016
(11)
Open this circuit breaker:
(a)
P180 DC Power Distribution Panel
1) 180H7, LATERAL CONT VALV SYS 1
S 865-017
(12)
Manually move the indicator lever on the bottom of the motor to the middle position.
S 865-018
(13)
Close this circuit breaker:
