(d)
Remove the retract port cap (2) from the lower hydraulic actuator (7).
(e)
Let the hydraulic fluid drain into an applicable container.
(f)
Install the retract port cap (2) on the lower hydraulic actuator (7).
(g)
Tighten the flexhose couplings for the extend line and retract line at the strut hydraulic connection.
S 034-015-N00
(8) Disconnect the hydraulic lines (2, 5, 8) from the retract ports on the locking hydraulic actuator (Fig. 402).
(a) Install the protection caps on the ports and the hydraulic lines.
S 034-085-N00
(9) Release the actuator lock lever (6) for the flex shaft.
NOTE: This will decrease the preload in the system and make an
____ easier removal of the bolts and flex shaft which attach the hydraulic actuator.
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
S 034-086-N00
CAUTION: HOLD THE FLEX SHAFT WHEN YOU DISCONNECT THE LOWER END OF THE
_______ FLEX SHAFT TUBE FROM THE LOCKING HYDRAULIC ACTUATOR. THE FLEX SHAFT CAN FALL OUT OF THE TUBE AND CONTAMINATION CAN OCCUR.
(10) Disconnect the two flex shafts (1 and 7) from the locking hydraulic actuator (11) (Fig. 402).
(a)
Loosen the tube nut (9) and pull it back off the fitting at the hydraulic actuator port.
(b)
Loosen the support block clamps that attach the tube assembly to the fan cowl.
(c)
Apply a force to the tube to put it into the nut at the opposite end of the tube.
NOTE: This will give you more space at the open end of the
____ tube to disengage the end of the flex shaft from the drive socket.
(d)
Move the tube nut along the tube until the outer end of the nut and the tube are aligned.
(e)
Hold the flex shaft in the tube.
S 034-018-N00
(11)
Remove the retainer bolts (1) which hold the retainers (2) in the gimbal ring (Fig. 401).
S 034-019-N00
(12)
Remove the retainers (2) and shims (3), which hold the gimbal ring to the mounting bracket.
S 024-020-N00
(13)
Remove the center locking hydraulic actuator (11).
TASK 78-31-17-404-029-N00
3. Install the Thrust Reverser Locking Hydraulic Actuator
______________________________________________________
A. Standard Tools and Equipment
(1) Hydraulic Service Cart - 0 to 3000 psi, With
Hydraulic Fluid, Fire Resistant, BMS 3-11
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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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