(2)
AMM 32-00-15/201, Landing Gear Door Locks
(3)
AMM 32-00-20/201, Landing Gear Downlocks
(4)
AMM 32-21-15/401, Nose Gear Lock Spring
(5)
AMM 32-34-00/501, Nose Gear Extension and Retraction
(6)
AMM 32-61-03/201, Nose Gear Proximity Sensor
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MAINTENANCE MANUAL
E. Access
(1)
Location Zones
119/120 Main Equipment Center
711 Nose Landing Gear (NLG)
713/714 Forward NLG Door
715/716 Aft NLG Door
730/740 Main Landing Gear and Doors
(2)
Access Panel
119BL
F.
Install the Upper Drag Strut
S 494-018
(1)
Install the drag strut hoist and the boom hoist on the upper drag strut.
S 864-066
(2)
Lift the upper drag strut (1) into the wheel well. Position it between the support fittings for the wheel well wall.
S 214-077
(3)
Examine the keyway on the trunnion pin.
(a)
Make sure the potting compound is intact.
(b)
If the potting compound is not intact, remove the trunion pin and replace with the one that has been repaired with the potting compound intact. This will prevent seepage of grease out of the keyway and into the trunnion pin nut side of the wheel well wall.
S 644-020
(4)
Apply grease to the pins, the bolts, and the washers before installation.
S 414-021
(5)
Do the steps that follow to install the trunnion pins (14) into the trunnion (28) (View B-B):
(a)
Get access through the door to the main equipment center, 119BL, to install the trunnion pins.
(b)
Push the trunnion pins (14) into position.
NOTE: Do not install the nut at this time.
____
(c) Align the holes of the lockbolt for the trunnion pin (11) with the holes in the trunnion.
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S 414-057
(6) Do the steps that follow to install the sensor targets on the trunnion (View D-D):
NOTE: The bracket that connects to the link (29) from the sequence
____ valve-bypass valve (30) is installed on the left side only.
(a)
Put the sensor target (32) into position.
(b)
Put the bracket (33) into position on the left side of the trunnion.
(c)
Install the bracket bolt (36), the washers (34) and the nut (35).
(d)
Install the lockbolt (11), the washers (12) and the nut (13) for the trunnion pin.
S 414-022
(7)
Install the hydraulic line that is near the trunnion.
S 414-023
(8)
Install the hydraulic line (31) that attaches to the sequence valve-bypass valve (30).
S 414-024
(9)
Install the washer (15) and the nut (16) on the end of trunnion pin.
(a)
Tighten the nut to 500-600 pound-inches. Loosen the nut to get a minimum of 0.005 inch gap. Loosen to the nearest lock position (View B-B).
S 414-025
(10)
Install the nut lockbolt (17), the washers (18) and the nut (19).
S 034-026
(11)
Disconnect the apex pin (2) from the lower drag strut (10) and the lock link (3).
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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(184)
