(2)
D00054 Lubricant, Hydraulic System - MCS 352
B.
References
(1)
AMM 27-62-00/201, Speedbrake Control System
(2)
AMM 78-31-00/201, Thrust Reverser System
(3)
AMM 78-34-01/401, Thrust Reverser Directional Control Valve
C.
Access
(1)
Location Zones
450 Strut - Engine 1
460 Strut - Engine 2
470 Strut - Engine 3
480 Strut - Engine 4
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH ONE-WAY VALVE RESTRICTORS ú
78-34-02
ú CONFIG 2 ú N01 Page 406 ú Oct 10/94
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
(2)
Access Panels
451A and 451B #2 and #3 Forward Fairing, Engine 1
461A and 461B #2 and #3 Forward Fairing, Engine 2
471A and 471B #2 and #3 Forward Fairing, Engine 3
481A and 481B #2 and #3 Forward Fairing, Engine 4
D.
Install the Extend Flow Control Tee for the Thrust Reverser (Fig. 401).
S 424-068-N02
(1)
Remove the protective caps from the hydraulic lines and DCV ports.
S 644-041-N02
(2)
Lubricate the new packing (5) with hydraulic fluid.
S 424-042-N02
(3)
Install the packing (5) on the union (4).
S 424-043-N02
(4)
Install the union (4) to the extend port of the DCV.
S 424-044-N02
(5)
Install the elbow (6) to the reducer tee (3) if it was removed.
S 424-045-N02
(6)
Install the restrictor valves (2) on the extend reducer tee (3) and the elbow (6) if they were removed.
(a)
Make sure the directional arrows on the restrictor valves (2) point toward the reducer tee (3).
(b)
Make sure the restrictor valves are tightly installed.
S 424-046-N02
(7)
Connect the Extend Flow Control Tee to the upper forward face of the DCV.
S 424-047-N02
(8)
Connect the tube nuts for the hydraulic extend lines to the
restrictor valves (two locations).
S 414-069-N02
(9)
Install the Retract Flow Control Tee.
E.
Install the Retract Flow Control Tee for the Thrust Reverser (Fig. 401).
(1)
Remove the protective caps from the hydraulic lines and DCV ports.
S 424-070-N02
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH ONE-WAY VALVE RESTRICTORS ú
78-34-02
ú CONFIG 2 ú N01 Page 407 ú Oct 10/94
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
(2) S 644-048-N02Lubricate the new packing (11) with hydraulic fluid.
(3) S 424-049-N02Install the packing (11) on the union (10).
(4) S 424-050-N02Install the union (10) to the retract port of the DCV.
(5) S 424-051-N02Install the elbow (12) to the reducer tee if it was removed.
(6) S 424-052-N02Install the restrictor valves (8) on the retract reducer tee (9) and the elbow (12) if they were removed. (a) Make sure the directional arrows on the restrictor valves point toward the reducer tee. (b) Make sure the restrictor valves are tightly installed.
(7) S 414-053-N02Connect the Retract Flow Control Tee to the lower, forward face of the DCV.
(8) S 414-054-N02Connect the tube nuts for the hydraulic retract lines (7) to the restrictor valves (8).
(9) S 424-055-N02Tighten the clamp for the hydraulic lines.
S 444-056-N02
(10)
Do the activation procedure for the thrust reversers (AMM 78-31-00/201).
S 864-057-N02
(11)
Remove the DO-NOT-OPERATE tags from the thrust levers.
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