R (b) Measure the dimensions E1 and E2 at the end of each link of the torque link assembly. To calculate the thickness K of the adjusting washer (9), use this formula:
K = 37 mm (1.4578 in) -1/2(E1 + E2)
R (c) Following K value, select the washer size
5.00 mm (0.1938 in) < K < 5.19 mm (0.2045 in) washer size 5.00mm (0.1938 in)
5.20 mm (0.2048 in) < K < 5.39 mm (0.2123 in) washer size 5.20mm (0.2048 in)
5.40 mm (0.2127 in) < K < 5.60 mm (0.2206 in) washer size 5.40mm (0.2127 in)
5.60 mm (0.2206 in) < K replace the torque links.
R (d) Install the lower and upper hinge pins (Ref. TASK 32-21-27-400-001).
(8)
Clean the threads of the center hinge pin and nut (3) with CLEANING AGENTS (Material No. 11-004A) and dry them with filtered compressed air.
(9)
Do the torque procedure on the nut (3)
(a)
Apply a light coat of SPECIAL MATERIALS (Material No. 05-047) to the threads of the center hinge pin, to the threads of the nut
(3) and to the washer (7).
(b)
Apply a light coat of COMMON GREASE (Material No. 04-004A) to the washer (8).
(c)
Install the washers (8), (7) and the nut (3).
(d)
TORQUE the nut (3) to 9 m.daN (66.37 lbf.ft) and loosen the nut (3). Do this three times.
(e)
Loosen the nut (3) to get a play J2, between 0.02 mm (0.0007 in.) and 0.1 mm (0.0039 in.).
(f)
Make sure that you can align a hole of the nut (3) with the slot of the center hinge pin and keep the play J2 given above. If not:
-loosen the nut (3),
-remove the washer (7),
-adjust the thickness of the washer (7) to get the play J2 given above with a hole of the nut (3) aligned with the slot of the center hinge pin.
1EFF : ALL 1 32-21-00Page 611 1 1 Aug 01/05 1 1 1CES 1 NOTE : The total thickness of the washer (7) (shoulder included)
____ must not be less than 4 mm (0.1574 in.). If the thickness of the washer (7) is less than 4 mm (0.1574 in.), replace it with a new washer (7).
-
do a passivating treatment on the reworked surface (Ref. CMM 320901),
-
do the torque procedure on the nut (3) again.
(g)
Apply a light coat of SPECIAL MATERIALS (Material No. 05-047) to the threads of the screw (2).
(h)
Install the screw (2), the washer (4), the nut (5) and tighten it.
(i)
Install the new cotter pin (6) on the nut (5).
(10)
Apply a layer of SEALANTS (Material No. 09-001) to the areas identified E.
(11)
Make sure that the lubrication points are clean and in good condition.
5. Close-up
________ Subtask 32-21-00-942-058
A. Removal of Equipment
(1) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
1EFF : ALL 1 32-21-00Page 612 1 1 Aug 01/05R 1 1 1CES 1
TASK 32-21-00-200-004
Inspection/Check of the Clearance of the Nose-Gear Hinge Bearings
1.
Reason for the Job
__________________
Self Explanatory
2.
Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------
REFERENCE QTY DESIGNATION
-------------------------------------------------------------------------------
No specific access platform 2.06 m (6 ft. 9 in.) R D23080000 1 GROUND SAFETY LOCK
B. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
07-11-00-581-003 Lifting of the Aircraft at Forward Jacking Point, MLG Wheels on the Ground
07-11-00-586-001 Lowering of the Aircraft at Forward Jacking Point,
MLG Wheels on the Ground
32-21-11-000-002 Removal of the NLG Leg Assy (2526GM)
32-21-11-400-002 Installation of the NLG Leg Assy (2526GM)
32-22-00-010-001 Nose Gear Doors - Ground Doors Opening
32-22-00-410-001 Nose Gear Doors - Ground Doors Closing
32-21-00-991-004 Fig. 602
3. Job Set-up
__________
Subtask 32-21-00-941-057
A. Safety Precautions
R (1) Make sure that the GROUND SAFETY LOCK (D23080000) or PIN-NLG DOWNLOCK R SAFETY (MZ23080000) as an alternative is in position.
1EFF : ALL 1 32-21-00Page 613 1 1 Aug 01/05 1 1 1CES 1 Subtask 32-21-00-010-054
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：A320飞机维护手册 AMM LANDING GEAR 起落架3(63)
