29-11-00
ALL ú ú 07 Page 661 ú May 28/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
S 866-242
(18)
Make sure the two yaw damper switches on the pilots' overhead panel, P5, are in the INOP position.
S 866-243
(19)
Put the stab trim switches on the pilots' aisle control stand, P10, to the CUT OUT position.
S 866-377
(20)
Make sure the L HYD PUMPS ENG and the R HYD PUMPS ENG switches on the hydraulic control panel on the P5 panel are in the ON position.
S 866-378
(21)
If you do not use the ACMPs to pressurize the system, make sure these switches on the hydraulic control panel on the P5 panel are in the OFF position:
(a)
L HYD PUMPS ELEC
(b)
R HYD PUMPS ELEC
(c)
C HYD PUMPS ELEC 1
(d)
C HYD PUMPS ELEC 2.
S 796-489
(22)
Do the left hydraulic system elevator and rudder PCAs internal leakage check (Fig. 606).
S 796-490
(23)
Do the center hydraulic system elevator and rudder PCAs internal leakage check (Fig. 608).
S 796-491
(24)
Do the right hydraulic system elevator and rudder PCAs internal leakage check (Fig. 609).
F.
Put the Airplane Back to Its Usual Condition
(1)
Remove hydraulic power (AMM 29-11-00/201).
S 866-220
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29-11-00
ALL ú ú 12 Page 662 ú Jan 28/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
MINIMUM CHECK Internal Leakage Check for the Left Hydraulic System - Elevator and Rudder PCAs Figure 606 (Sheet 1)
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