(1)
AMM 05-51-01/201, Hard Landing or High Drag/Side Load Landing
(2)
AMM 09-11-00/201, Towing
(3)
AMM 12-15-02/301, Nose Gear Shock Strut
(4)
AMM 32-00-20/201, Landing Gear Downlocks
C.
Access
(1)
Location Zones
711 Nose Landing Gear (NLG)
713/714 NLG Door Forward
715/716 NLG Door Aft
D.
Leak Check Procedure
S 492-135
(1)
Make sure the downlocks are installed on the nose and main landing gear (AMM 32-00-20/201).
(2)
Inspect the shock struts for leakage.
S 792-137
(3)
If you find leakage of the shock strut fluid on the inner cylinder, do the steps that follow to make sure the shock strut is serviceable:
(a)
Wipe the surface of the inner cylinder with a clean cloth to remove all of the fluid from the leak.
S 792-136
32-21-25
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A
A
1.
AIR VALVE CAP
2.
SWIVEL NUT
A
A
757
MAINTENANCE MANUAL
SHOCK STRUT (REF)
6. UPPER CENTERING CAM
9. LOWER CENTERING CAM
3.
CAP
4.
SWIVEL NUT
5.
OIL CHARGING
VALVE
B
Nose Landing Gear Shock Strut Seals
Figure 201 (Sheet 1)
SEE A
METERING PIN (REF)
7.
OUTER CYLINDER
8.
INNER CYLINDER
SEE B
SEE C
A-A
32-21-25
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A
757
MAINTENANCE MANUAL
CYLINDER
11.
RETAINER
PIN
12.
ACTIVE
DYNAMIC SEAL
13.
BACKUP RING
(2 LOCATIONS)
14.
ACTIVE STATIC SEAL
15.
BACKUP RING (2 LOCATIONS)
16.
SPARE DYNAMIC SEALS
17.
SPARE STATIC SEALS
UPPER STEERING
SUPPORT PLATE
18.
LOWER STEERING SUPPORT PLATE
19.
STEERING NUT
20.
BOLT (2 LOCATIONS)
22. GLAND NUT
C
Nose Landing Gear Shock Strut Seals Figure 201 (Sheet 2)
32-21-25
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A
757
MAINTENANCE MANUAL
7. OUTER CYLINDER
9. LOWER
8. INNER
CENTERING
CYLINDER
CAM
25. PLUG ASSEMBLY (INSTALLED IN THE OIL CHARGING VALVE HOLE)
NOSE LANDING GEAR SHOCK STRUT
9. LOWER
CENTERING
CAM
7. OUTER
CYLINDER
TORQUE 35. SEAL
TUBE PROTECTOR
SCREW24. LOWER (6 LOCATIONS)BEARING
A
34. CLAMP
27. PULLER
ASSEMBLY
ASSEMBLY
A
22. GLAND NUT
33. SEAL PROTECTION (AFTER REMOVAL)
(2 LOCATIONS)
SEE A
26. STRAP
28. PIN (3 LOCATIONS)
8. INNER CYLINDER
(NOSE WHEEL AXLE)
BEARING PULLER
NLG Lower Bearing Puller Equipment
Figure 202 (Sheet 1)
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A
8. INNER
ASSEMBLY
RETAINER
HOLE FOR THE OIL CHARGING VALVE AND THE PLUG ASSEMBLY (REF)
30. CAM
TOOL
CENTERING CAM POSITIONER
7. OUTER CYLINDER
9. LOWER CENTERING CAM
TORQUE TUBE (REF)
19. STEERING NUT
24. LOWER BEARING (AFTER REMOVAL)
SEAL PROTECTOR
A-A
CAM LOCK
NLG Lower Bearing Puller Equipment
Figure 202 (Sheet 2)
7. OUTER CYLINDER
9. LOWER CENTERING CAM
TORQUE TUBE
(REF)
19. STEERING NUT
32. CAM LOCK ASSEMBLY
8. INNER CYLINDER
24. LOWER
BEARING
32-21-25
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A
757
MAINTENANCE MANUAL
7. OUTER CYLINDER
MINIMUM
FORCE ONLY
MINIMUM FORCE ONLY
29. RAM ASSEMBLY SEE
B 16. DYNAMIC SEAL
24. LOWER BEARING
7. OUTER CYLINDER
19. STEERING NUT
29. RAM ASSEMBLY
SEE
B SLIDE HAMMER (REF)
LOWER BEARING INSTALLATION
RAM
BNLG Lower Bearing Puller Equipment Figure 202 (Sheet 3)
32-21-25
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