E.
Remove the Upper Drag Strut
S 014-006
(1)
Remove the lowest hydraulic line (31) from the sequence valve-bypass valve (30) for the nose landing gear (Detail A). Seal the fittings with a plug.
S 014-007
(2)
Remove the hydraulic line that is near the trunnion (Detail A). Seal the fittings with a plug.
S 494-008
(3)
Do the steps that follow to install the hoist equipment on the upper drag strut:
(a)
Install the drag strut hoist on the end of the boom hoist.
(b)
Lift the drag strut hoist with the boom hoist until the drag strut hoist is around the trunnion.
(c)
Install the strap around the trunnion. Tighten the strap.
(4)
Remove the apex pin (2) (View A-A).
(5)
Release the upper drag strut (1).
S 414-062
(6)
Connect the lower drag strut (10) to the lock link (3) with the apex pin (2).
S 014-009
S 034-010
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S 014-012
(7)
Do the steps that follow for each of the two trunnion pins (View B-B):
(a)
Use the door for the main equipment center, 119BL, to get access to the trunnion pins.
(b)
Remove the nut lockbolt (17), the washer (18), and the nut (19).
(c)
Remove the nut (16) and the washer (15) on the trunnion pin (14).
S 014-013
(8)
Do the steps that follow for each side of the upper drag strut (View D-D):
(a)
Remove the lockbolt (11), the washers (12) and the nut (13) for the trunnion pin (14).
(b)
Remove the bracket bolt (36), the washers (34) and the nut (35) from the position target (32) for the nose landing gear.
(c)
Keep the position targets for the nose landing gear, the bolts, and the washers for installation on the new upper drag strut.
S 864-063
(9)
Temporarily attach the bracket (33) and the link (29) (Detail A) away from the upper drag strut.
S 014-064
(10)
Get access to the trunnion pins through the door for the main equipment center, 119BL.
S 024-016
(11)
Pull each trunnion pin (14) outboard to release the upper drag strut.
S 214-076
(12)
Examine the keyway on the trunnion pin.
(a)
Make sure the potting compound is intact.
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(b) If the potting compound is not intact, look for a buildup of too much grease on the side of the wheel well wall where the trunnion pin nut is installed.
S 864-065
(13) Lower the upper drag strut (1) with the boom hoist.
TASK 32-21-04-404-017
3. Install the Upper Drag Strut for the Nose Landing Gear (Fig. 401)
______________________________________________________
A. Equipment
(1)
Boom Hoist - A20001-79
(2)
Nose Gear Drag Strut Hoist - B32004-1
B.
Consumable Materials
(1)
D00013 Grease - MIL-G23827
C.
Parts
~.............................................................................. | AMM | | AIPC | ................. ............................ | FIG | ITEM | NOMENCLATURE | SUBJECT | FIG | ITEM | ................................................................................ | 401 | 2 | Apex Pin | 32-21-03 | 01 | 20 | | | 4 | Washer | | | 255 | | | 8 | Nut | | | 30 | | | 9 | Washer | | | 35 | | | 11 | Bolt | | | 40 | | | | Bolt | | | 45 | | | 12 | Washers | | | 50 | | | 13 | Nut | | | 55 | | | 14 | Trunnion Pin | | | 60 | | | 15 | Washer | | | 65 | | | 16 | Nut | | | 66 | | | 17 | Bolt | 32-21-00 | 01 | 135 | | | 18 | Washer | | | 140 | | | 19 | Nut | | | 145 | | | 32 | Position Target | 32-61-03 | 03 | 1 | | | | Position Target | | | 5 | | | 33 | Bracket | 32-21-00 | 01 | 170 | | | 34 | Washer | | | 160 | | | 35 | Nut | | | 165 | | | 36 | Bolt | | | 150 | | | | Bolt | | | 155 | 2.......….......…...................................…...........….....…........1
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本文链接地址：757 AMM 飞机维护手册 起落架 CHAPTER 32 - LANDING GEAR 1(183)
