29-11-00
ALL ú ú 01 Page 668 ú Oct 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
S 976-259
(11) Let the flow become stable for one minute and write this flow as
flow No. 8. Flow No. 8__________GPM
S 866-260
(12)
Turn the control wheel to the neutral position.
S 976-261
(13)
Subtract flow No. 8 from flow No. 7 and write this flow as flow No. 8A.
Flow No. 7__________GPM
Flow No. 8__________GPM
Flow No. 8A__________GPM
NOTE:____ Flow No. 8A is the null leakage for the power package of the
right inboard aileron.
S 866-264
(14)
With the speedbrake lever in the flight detent, turn the control wheel 55 to 65 degrees clockwise.
S 976-265
(15)
Let the flow become stable for one minute and write this flow as
flow No. 9. Flow No. 9__________GPM
S 866-266
(16)
Turn the control wheel to the neutral position.
S 976-267
(17)
Subtract flow No. 9 from flow No. 8 and write this flow as flow
No. 9A. Flow No. 8__________GPM Flow No. 9__________GPM
Flow No. 9A__________GPM
NOTE: Flow No. 9A is the null leakage of the power package for
____ the right outboard aileron.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
29-11-00
ALL ú ú 01 Page 669 ú Oct 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
S 976-268
(18) Subtract flow No. 9 from flow No. 7 and write this flow as flow No. 9B.
Flow No. 7__________GPM
Flow No. 9__________GPM
Flow No. 9B__________GPM
NOTE:____ Flow No. 9B is the null leakage of the power packages for
the right inboard and outboard ailerons.
NOTE:____ If flow No. 9B is approximately equal to flow No. 6A, it is
not necessary to continue the lateral hydraulic control
system - internal leakage check.
S 866-271
(19)
Put the speedbrake lever in the full forward position.
S 866-462
(20)
Turn the control wheel 30 to 40 degrees clockwise of the neutral position.
S 976-272
(21)
Let the flow become stable for one minute and write this flow as
flow No. 10. Flow No. 10__________GPM
S 866-273
(22)
Put the speedbrake lever in the full aft position.
S 866-463
(23)
Put the control wheel in a position 30 to 40 degrees counterclockwise of neutral.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
29-11-00
ALL ú ú 01 Page 670 ú Feb 15/98
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
S 866-274
(24) Let the flow become stable for one minute and write this flow as
flow No. 11. Flow No. 11__________GPM
S 866-275
(25)
Put the control wheel in the neutral position.
S 976-276
(26)
Subtract flow No. 11 from flow No. 10 and write this flow as flow No. 11A.
Flow No. 10__________GPM
Flow No. 11__________GPM
Flow No. 11A__________GPM
NOTE:____ Flow No. 11A is the internal leakage other than the null
leakage of the control valve for spoiler package No. 5.
S 866-277
(27)
Put the speedbrake lever in the full forward position.
S 866-464
(28)
Put the control wheel in a position 30 to 40 degrees counterclockwise of neutral.
