-
the hinge pin (60)
-
the pin (32)
-
the spherical bearings This makes the installation easier.
(7)
Clean the attachment hardware with CLEANING AGENTS (Material No. 11-004A) and dry with filtered compressed air.
(8)
Apply a layer of SPECIAL MATERIALS (Material No. 05-047) to the threads of all nuts, screws, bolts and pins.
Subtask 32-21-11-420-061
B. Installation of the NLG Leg Assy
(1)
Engage the nose gear leg in the nose gear well with the TROLLEY-NLG GROUND HANDLING (98D32203504000).
(2)
Put the gear leg between the spherical bearings with the mini-hoist with a load capacity of 300 daN (675 lbf).
(3)
Engage the trunnion pins (87) in the bearings and push the gear leg against one of the bearings.
(4)
On the opposite side, measure the clearance between the gear leg and the spherical bearing (Ref. Fig. 407/TASK 32-21-11-991-015)
(5)
Get two washers (86) or washer (87) or washer (88) or washer (89) or washer (90) or washer (91) or washer (92) or washer (93) or washer (94). to get clearance J between 0.1 mm (0.0039 in.) and 0.2 mm (0.0078 in.).
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R Clearance J between the gear leg and the spherical bearing Figure 407/TASK 32-21-11-991-015
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(6)
Remove the trunnion pins (87).
(7)
Install new packings (82) on the grease ducts (81). NOTE : Replace the packings (82) after each removal of the trunnion
____
pins (87).
(8)
Install the grease ducts (81) in the trunnion pins (87). Install the bushings (80) in the trunnion pins (87).
(9)
Apply a thin layer of COMMON GREASE (Material No. 04-004) or COMMON GREASE (Material No. 04-022) to the trunnion pins (87) and the washers (86).
NOTE : Do not mix Material No. 04-004 with Material No. 04-022. You
____ can use Material No. 04-022 as an alternative to Material No. 04-004. Clean and degrease the parts before you use Material No. 04-022.
(10) Install the equipped trunnion pins (87) and the washers (86) one on each side. Align the holes of the trunnion pins (87) with the holes of the nose gear leg.
NOTE : You must install only one washer (86) on each side.
____
(11)
Apply a thin layer of SPECIAL MATERIALS (Material No. 05-047) to the threaded and unthreaded parts of the bolts (88).
(12)
Install the bolts (88), the washers (83) and the nuts (84). TORQUE the nuts (84) to between 4.4 and 5.2 m.daN (32.44 and 38.34 lbf.ft) and safety them with cotter pins (85).
NOTE : Put the heads of the bolts (88) to the front of the aircraft.
____ Subtask 32-21-11-080-052
C. Removal of the Tool
(1) Remove the TOOL - R/I NLG (98D32203500000).
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Subtask 32-21-11-420-059
D. Installation of the Rotating Rod
(1)
Install the trunnion shafts (73). NOTE : Push the nose gear leg forward to install the trunnion shafts
____
(73).
(2)
Put a block below the nose landing gear shock absorber to keep the nose landing gear leg at an angle.
(3)
Install the bushes (72) and (75).
(4)
Install the bolts (74), the washers (76) and the nuts (70). TORQUE the nuts (70) to 0.3 m.daN (26.54 lbf.in) and safety them with the cotter pins (71).
Subtask 32-21-11-420-062
E. Connection of the Drag Strut
(1)
Remove the nut (62), the washer (61), the bolt (65), the ring (64) and the hinge pin (60).
(2)
Align the bores of the nose gear leg with the bores of the drag strut (66).
(3)
Install the hinge pin (60) with the GUIDE CONE (J47554).
(4)
Install the ring (64), the bolt (65), the washer (61) and the nut (62). TORQUE the nut (62) to between 1.7 and 2 m.daN (12.53 and 14.74 lbf.ft) and safety it with a new cotter pin (63).
Subtask 32-21-11-420-057
F. Connection of the Lockstay (45) and the Downlock Release Actuator
(1) Remove the nut (48), the bolt (20) the washers (49) and (21) and the ring (22). Remove the pin (32).
R (2) Install the GROUND SAFETY LOCK (D23080000) or PIN-NLG DOWNLOCK SAFETY R (MZ23080000) as an alternative.
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(3) Install the pin (32) with the GUIDE CONE (J47557). Engage in this order the spacer (36), the lockstay (45), the washer (46) and the spherical end of the actuating cylinder (23).
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本文链接地址：A320飞机维护手册 AMM LANDING GEAR 起落架3(76)
