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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
B. Parts
~.............................................................................. | MM | | IPC | ................. ............................ | FIG | ITEM | NOMENCLATURE | SUBJECT | FIG | ITEM | ................................................................................ | 401 | 1 | Sampling Valve | 29-11-20 | 04 | 54 | | | | | | 05 | 70 | | | | | 29-11-22 | 05 | 112 | | | 2 | Cap | 29-11-20 | 04 | 55 | | | | | | 05 | 71 | | | | | 29-11-22 | 05 | 115 | | | 3 | Packing | 29-11-20 | 04 | 58 | | | | | | 05 | 72 | | | | | 29-11-22 | 05 | 118 | 2......…........…...................................…..........….....….........1
C. References
(1)
AMM 06-41-00/201, Fuselage Access Doors and Panels
(2)
AMM 12-12-01/301, Hydraulic Systems
(3)
AMM 12-25-01/301, Exterior Cleaning
(4)
AMM 29-11-00/201, Main (Left, Right, and Center) Hydraulic Systems
(5)
AMM 32-00-15/201, Landing Gear Door Locks
D.
Access
(1)
Location Zone
143/144 MLG Wheel Well
197 Wing to Body - Lower Half (Left)
(2)
Access Panels
197KL Central Hydraulic Service Center
E.
Install the Sampling Valve
S 644-015
(1)
Apply hydraulic lubricant or hydraulic fluid to the new O-ring (3) and the threads of the sampling valve (1).
(2)
Install the new O-ring on the sampling valve (1).
S 434-016
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29-11-23
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
(3) S 434-017Remove the cap from the opening in the reservoir.
(4) S 424-018Install the sampling valve (1) on the reservoir.
(5) S 434-019Tighten the bleed screw on the sampling valve (1) by hand.
(6) S 434-020Safety the bleed screw, on the sampling valve (1), with a lockwire.
(7) S 434-021Install the cap (2) on the sampling valve (1).
(8) S 614-022Fill the hydraulic reservoir (AMM 12-12-01/301).
(9) S 864-023Remove the DO-NOT-CLOSE tags and close these circuit breakers on the overhead panel, P11: (a) 11K15, HYDRAULICS ELEC PUMP C1 (b) 11K16, HYDRAULICS ELEC PUMP RIGHT (c) 11K24, HYDRAULICS ELEC PUMP C2 (d) 11K25, HYDRAULICS ELEC PUMP LEFT
S 864-024
(10)
Pressurize the hydraulic reservoir (AMM 29-11-00/201). S 794-025
(11)
Make sure there are no leaks at the sampling valve (1).
S 114-026 CAUTION: QUICKLY CLEAN THE INSTALLATION AREA OF ALL HYDRAULIC
_______ FLUID. HYDRAULIC FLUID CAN CAUSE DAMAGE TO THE AIRPLANE EQUIPMENT.
(12) Clean all hydraulic fluid from the installation area (AMM 12-25-01/301).
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