78-31-17
ALL ú ú N01 Page 425 ú Jun 10/95
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
S 844-023-N00
CAUTION:_______IMMEDIATELY CLEAN ALL OF THE HYDRAULIC FLUID THAT FALLS. THE HYDRAULIC FLUID CAN CAUSE CONTAMINATION OF THE AIRPLANE OR THE ENGINE.
(4) Drain the hydraulic fluid from the actuator system.
(a)
Put an applicable container below the lower non-locking hydraulic actuator (7) to catch the hydraulic fluid.
(b)
Loosen the flexhose couplings for the extend line and retract lines at the strut hydraulic connection.
NOTE: This is done to let air into the actuator system at a
____ high point to drain the hydraulic fluid.
(c)
Loosen the extend port cap (4) from the top non-locking hydraulic actuator (3) (Fig. 403).
(d)
AIRPLANES POST-SB 78-2155; Remove the sync lock from the lower hydraulic actuator (AMM 78-34-13/401).
(e)
Remove the sync lock from the lower hydraulic actuator (AMM 78-34-13/401).
(f)
AIRPLANES WITHOUT SB 78-2155; Turn the bottom of the manual drive adapter (8) counterclockwise to remove it from the lower non-locking hydraulic actuator (7) (Fig. 403).
(g)
Remove the retract port cap (2) from the lower non-locking hydraulic actuator (7).
(h)
Let the hydraulic fluid drain into the applicable container.
S 014-130-N00
(5) If you remove the lower non-locking hydraulic actuator, do the steps that follow:
(a) Disconnect the retract line flexhose (4) from the lower non-locking hydraulic actuator. 1) Install the plug on the retract line (4).
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78-31-17
ALL ú ú N02 Page 426 ú Feb 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
2) Install a protection cap on the actuator port.
TASK 78-31-17-404-106-N00
5. Install the Thrust Reverser Non-Locking Hydraulic Actuator
__________________________________________________________
A. Standard Tools and Equipment
(1)
Hydraulic Service Cart - 0 to 3000 psi, With
Hydraulic Fluid, Fire Resistant, BMS 3-11
B.
Consumable Materials
(1)
D00148 Hydraulic Fluid - Type IV
Fire-Resistant, BMS 3-11
(2)
A00160 - Sealant Primer, BMS 5-63
C.
Parts
~.............................................................................. | AMM | | AIPC | ................................................................................ | FIG| ITEM | NOMENCLATURE | SUBJECT | FIG | ITEM | ................................................................................ | 401| 1 | Bolt | 78-31-01| 10 | 240 | | | 2 | Retainer | | | 230 | | | 2 | Retainer | | | 235 | | | 3 | Shim | | | 245 | | | 4 | Actuator, Non-Locking | | | 290 | | | 4 | Actuator, Locking | | | 300 | | | 5 | Bolt | | | 255 | | | 6 | Washer | | | 260 | | | 7 | Nut | | | 270 | | | 8 | Screw | 78-31-10| 01 | 540 | | | 9 | Pin | 78-31-01| 10 | 250 | | | 10 | Panel | 78-31-10| 01 | 590 | 2.....….........…...................................…..........…......…........1
~.............................................................................. | AMM | | AIPC | ................................................................................ | FIG| ITEM | NOMENCLATURE | SUBJECT | FIG | ITEM | ................................................................................ | 402| 1 | Tubing, Rotary Flex | 78-31-01| 10 | 190 | | | 2 | Tube Assembly | | | 170 | | | 4 | Retainer | | | 230 | | | 4 | Retainer | | | 235 | | | 5 | Tube Assembly | | | 160 | | | 7 | Tubing, Rotary Flex | | | 190 | | | 8 | Tube Assembly | | | 165 | | | 10 | Sensor | 78-36-01| 01 | 160 | | | 11 | Actuator, Locking | 78-31-01| 10 | 300 | 2.....….........…...................................…..........…......…........1
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78-31-17
ALL ú ú N02 Page 427 ú Jun 18/01
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