757 MAINTENANCE MANUAL
(b) (c) Lift the drag strut hoist with the boom hoist until the drag strut hoist is around the trunnion.Install the strap around the trunnion. Tighten the strap.
(4) S 034-011Disconnect the upper end of the lock actuator from the aft lock link (View D-D).
(5) S 014-012Remove the spring support shaft to disconnect the aft lock link from the wall of the wheel well (View A-A). Move the lock link up and tie it to the upper drag strut with a nylon web or other applicable device.
(6) S 014-013Remove the landing and the runway turnoff lights, P62 and P63 panels from the shock strut of the nose landing gear (AMM 33-42-04/401).
NOTE:____ It is not necessary to remove the harnesses for the electrical wires and the clamps from the shock strut. Disconnect the panels and pull out sufficiently to allow access to the pin for the lower drag strut. Tie the panels to the shock strut.
(7) S 014-014Remove the lower pulley support bracket for the steering cables (AMM 32-51-13/401).
(8) S 014-015Remove the pin to disconnect the lower drag strut from the shock strut (View C-C).
(9) S 014-016Do the steps that follow for each of the two upper drag strut pins (View B-B): (a) Use the door for the main equipment center, 119BL, to get access to the trunnion pins.
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757 MAINTENANCE MANUAL
(b)
Remove the nut lockbolt.
(c)
Remove the nut on the trunnion pin.
S 014-017
(10)
Do the steps that follow for each side of the upper drag strut (View E-E):
(a)
Remove the lockbolt for the trunnion pin.
(b)
Remove the bracket bolt from the position target for the nose landing gear.
(c)
Keep the position target, the bolts, and the washers for installation on the new drag strut assembly.
S 844-018
(11)
Temporarily attach the bracket, and the link (Detail A) away from the upper drag strut.
S 844-019
(12)
Get access to the trunnion pins through the door for the main equipment center 119BL.
S 014-020
(13)
Pull each trunnion pin outboard to release the drag strut assembly.
S 214-053
(14)
Examine the keyway on the trunnion pin.
(a)
Make sure the potting compound is intact.
(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 844-021
(15) Lower the drag strut assembly with the boom hoist.
TASK 32-21-03-404-022
3. Install the Assembly for the Drag Strut on 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)
D00633 Grease - BMS 3-33 (Preferred)
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(2)
D00013 Grease - MIL-G-23827
(Optional to BMS 3-33)
C.
References
(1)
AMM 06-41-00/201, Fuselage (Major Zones 100 and 200) Access Doors and Panels
(2)
AMM 07-11-02/201, Jacking Airplane Nose
(3)
AMM 32-00-15/201, Landing Gear Door Locks
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