(4)
AMM 32-00-20/201, Landing Gear Downlocks
(5)
AMM 32-21-15/401, Nose Gear Lock Spring
(6)
AMM 32-34-00/501, Nose Gear Extension and Retraction
(7)
AMM 32-51-13/401, Nose Wheel Steering Lower Pulley Support Bracket
(8)
AMM 32-61-03/201, Nose Gear Proximity Sensor
(9)
AMM 33-42-04/401, Nose Gear Landing and Runway Turnoff Lights, P62, and P63 Panels
D.
Access
(1)
Location Zones
119/120 Main Equipment Center
711 Nose Landing Gear (NLG)
713/714 Forward NLG Door
715/716 Aft NLG Door
(2)
Access Panel
119BL Main Equipment Center
E.
Install the Drag Strut Assembly.
S 414-023
(1)
Remove the lock springs for the nose landing gear
(AMM 32-21-15/401).
S 844-024
(2)
Tie the lock link to the upper drag strut.
S 494-025
(3)
Install the drag strut hoist and the boom hoist on the upper drag strut.
S 844-026
(4)
Lift the upper drag strut into the wheel well. Position it between the wall of the wheel well and the support fittings.
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S 214-054
(5) Examine the keyway on the trunnion pins.
(a) Make sure the potting compound is intact.
(b) If the potting compound is not intact, replace the pin with a
trunnion pin that has 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 644-027
(6) Apply grease to the trunnion pins, bolts, and the washers.
S 414-028
(7) Do the steps that follow to install the trunnion pins into the
trunnion (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 into position.
NOTE: Do not install the nut at this time.____
(c) Align the holes of the lockbolt for the trunnion pin with the
holes in the trunnion.
S 414-029
(8) Do the steps that follow to install the sensor targets on the
trunnion (View E-E):
NOTE: The bracket from the bypass valve which connects to the link____
is installed on the left side only.
(a) Put the sensor target into position.
(b) Put the bracket into position on the left side of the trunnion.
(c) Install the bolt for the bracket.
(d) Install the lockbolt for the trunnion pin.
S 414-030
(9) Install the hydraulic line that is near the trunnion.
S 414-031
(10)
Install the hydraulic line that attaches to the bypass valve.
S 414-032
(11)
Install the washer and the nut on the end of trunnion pin. Tighten the nut to 500-600 pound-inches. Loosen the nut to get a minimum gap of 0.005 inch. Loosen to the nearest lock position and install the lockbolt.
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S 414-033
(12)
Install the nut lockbolt.
S 844-034
(13)
Release the lock link from the upper drag strut.
