(3)
Lower the nose of the airplane and remove the jack
(AMM 07-11-02/201).
S 618-019
(4)
Do the servicing of the shock strut (AMM 12-15-05/301).
(a)
Do a check on the gland nut (9) for leaks.
S 098-020
WARNING:_______REFER TO AMM 32-00-30/201 FOR THE LOCK REMOVAL PROCEDURE. FAST MOVEMENT OF DOORS CAN CAUSE INJURY TO PERSONS OR CAUSE DAMAGE TO EQUIPMENT.
(5) Remove the door locks for the nose landing gear (AMM 32-00-30/201).
TASK 32-21-02-968-061
3. Inner Cylinder Seals and Spare Seals Replacement (Fig. 801)________________________________________________
A. General
(1)
Use this procedure when you install the new seals and new spare seals in the lower bearing. You must remove the inner cylinder fully from the outer cylinder.
B.
Special Tools and Equipment
(1)
2MIT65B01202 Shock Strut Lower Gland Nut Spanner Wrench
(2)
3MIT65B01202-1 Shock Strut Lower Bearing Seal Retainer Puller
(3)
4MIT65B01221-1 Shock Strut Lower Gland Seals Split Guide
(4)
MIT65B01221-4 Inner Cylinder Upper Bearing Split Guide
(5)
ME65B01221-1 Shock Strut Lower Cam Locating Screw
(6)
13MIT65B01221-4 Nose Gear Lower Cam Inner Cylinder Wrench
(7)
21MIT65B01211-1 Gland Seating Tool
(8)
3ME65B00162 Nose Landing Gear Lower Seal Installation Sling Set
C.
Standard Tools and Equipment
(1)
Plastic tool for cutting T-ring (commercially available)
(2)
Drip tray with 10-gallon minimum capacity (commercially available)
(3)
Cloth padding for inner cylinder surface protection
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32-21-02
ALL ú ú 01A Page 816 ú Feb 18/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
(4)
Grease gun (commercially available)
D.
Consumable Materials
(1)
D00070 Petroleum Base Hydraulic Oil - MIL-H-5606
(2)
D00196 Hydraulic fluid - BMS 3-11, Type IV, Class 1
(3)
D00633 Grease - BMS 3-33 (preferred)
(4)
D00013 Grease - MIL-G-23827(optional)
(5)
D00589 Lubricant Hydraulic Assembly AFS-682 (Preferred)
(6)
D00250 Petrolatum VV-P-236 (Optional)
(7)
G01395 Compound - Corrosion Inhibition, BMS 3-27, Mastinox 6856K
E.
References
(1)
AMM 07-11-02/201, Jacking Nose Airplane
(2)
AMM 07-11-03/201, Jacking Airplane Axles
(3)
AMM 09-11-00/201, Towing
(4)
AMM 12-15-05/301, Nose Landing Gear Shock Strut
(5)
AMM 32-21-01/401, Nose Landing Gear
(6)
AMM 32-21-02/301, Nose Landing Gear Shock Strut
(7)
AIPC 32-21-01 Fig. 4
(8)
AIPC 32-21-02 Fig. 1
(9)
AIPC 32-21-03 Fig. 1
F.
Procedure
S 868-053
WARNING: YOU MUST CAREFULLY INSTALL THE GROUND LOCKS IN ALL LANDING
_______ GEAR. AN ACCIDENTAL RETRACTION OF THE LANDING GEAR CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
(1) Install the ground locks in all landing gear (AMM 09-11-00/201).
S 498-054
WARNING: YOU MUST CAREFULLY DO THE STEPS IN THE TASK BELOW TO INSTALL
_______ THE DOOR LOCKS ON THE LANDING GEAR DOORS. THE DOORS CAN CLOSE QUICKLY IF YOU DO NOT INSTALL THE DOOR LOCKS CORRECTLY. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(2)
Do this task: "Installation of the Door Locks on the Wing Landing Gear" (AMM 32-00-30/201).
S 498-055
(3)
Do this task: "Installation of the Door Locks on the Body Landing Gear" (AMM 32-00-30/201).
(4)
Deflate the shock strut.
S 868-024
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