757 MAINTENANCE MANUAL
E. Remove the Door Actuator
S 034-005
(1)
Disconnect the hydraulic lines from the actuator.
S 494-044
(2)
Install plugs in the lines and fittings.
S 024-048
(3)
Loosen the bolt and move the lever from the splined shaft on the side of the actuator (Detail A).
S 034-007
(4)
Remove the bolt (10) to disconnect the sequence valve linkage from the actuator.
S 034-008
(5)
Remove the pin (6) to disconnect the rod end of the actuator from the door beam (View B-B).
S 034-045
(6)
Remove the pin (2) to disconnect the head end of the actuator from the wheel well structure (View A-A).
S 024-043
(7)
Remove the actuator (4).
S 214-047
(8)
If the actuator will be replaced, make a record of the number of threads in view on the rod end with the jam nut tightened.
S 494-009
(9)
Install the door hold-open strut. Use the instructions supplied with tool.
TASK 32-32-12-404-010
3. Install the Door Actuator (Fig. 401)____________________________________
A. Equipment
(1)
Door Hold-Open Strut, MLG - B32017-1
B.
Consumable Materials
(1)
D00148 Hydraulic Fluid - BMS 3-11, Type IV,
Class 1
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C. Parts
~.............................................................................. | AMM | | AIPC | ................. ............................ | FIG | ITEM | NOMENCLATURE | SUBJECT |FIG | ITEM | ................................................................................ | 401 | 1 | Washer | 32-32-12 | 01 | 22 | | | 2 | Pin | | | 15 | | | 3 | Spacer | | | 27 | | | 4 | Door Actuator | | | 30 | | | 5 | Nut | | | 23 | | | 5A | Pin | | | 9 | | | 6 | Pin | | | 10 | | | 7 | Spacer | | | 28 | | | 8 | Washer | | | 20 | | | 9 | Nut | | | 25 | | | 9A | Pin | | | 8 | | | 10 | Bolt | 32-32-05 | 01 | 25 | | | 11 | Washer | | | 40 | | | 12 | Bushing | | | 55 | | | 13 | Washer | | | 35 | | | 14 | Nut | | | 50 | 2......…........…...................................…...........…....….........1
D. References
(1)
AMM 12-12-01/301, Hydraulic Systems
(2)
AMM 29-11-00/201, Pressurize/Depressurize Main Hydraulic System
(3)
AMM 32-00-15/201, Landing Gear Door Locks
(4)
AMM 32-00-20/201, Landing Gear Downlocks
(5)
AMM 32-12-00/501, Main Gear Doors
(6)
AMM 32-35-00/501, Landing Gear Alternate Extension
E.
Access
(1)
Location Zones
143 MLG Wheel Well (Left)
144 MLG Wheel Well (Right)
F.
Procedure
S 824-011
(1)
Adjust the length of the replacement actuator to the same length as the actuator that was removed. Do the steps that follow (this is an alternative adjustment to the door and actuator adjustment of par. 8):
(a)
Loosen the rod end jamnut on the replacement actuator.
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MAINTENANCE MANUAL
(b) Adjust the rod end on the replacement door actuator to the same length as the actuator that was removed. Do the steps that follow to adjust the actuator length: 1) Adjust the rod end of the replacement actuator so that the
number of threads in view with the jamnut tightened correctly is the same as on the actuator that was removed. The allowance is plus or minus one thread.
2) Tighten the rod end jamnut to 70-80 pound-feet and install lockwire.
S 614-012
(2)
Fill the actuator with hydraulic fluid.
S 494-013
(3)
Install plugs in the hydraulic fittings.
S 094-014
(4)
Remove the door hold-open strut.
S 424-015
(5)
Install the pin (2), washer (1), spacers (3), nut (5), and pin (5A) to connect the head end of the actuator to the wheel well structure (View A-A).
S 434-016
(6)
Install the pin (6) to connect the rod end of the actuator to the door beam. Do not install the nut (9), but keep the pin in the hole.
S 434-017 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：757 AMM 飞机维护手册 起落架 CHAPTER 32 - LANDING GEAR 2(57)
