NOSE GEAR MODULAR PACKAGE - REMOVAL/INSTALLATION
1. Equipment and Materials
A. Gear Ground Lock Assemblies (Ref 32-00-01).
2. Prepare to Remove Nose Gear Modular Package
A. Check that landing gear ground lock assemblies are installed (Ref 32-00-01).
B. Depressurize hydraulic system.
3. Remove Nose Gear Modular Package
A. Disconnect and plug hydraulic lines connected to modular package (Fig. 401).
B. Remove bolts and washers securing modular package and remove package from airplane.
C. Remove hydraulic unions and discard O-ring packings. Plug ports.
4. Install Nose Gear Hydraulic Package
A. Remove plugs and install hydraulic unions in hydraulic package with new O-ring packings.
B. Fill package with hydraulic fluid. Cap unions.
C. Place package in position on bracket. Install a washer on each mounting bolt and insert bolts through package to bracket (Fig. 401).
D. Tighten bolts and secure package.
E. Remove caps and plugs and connect hydraulic lines.
F. Jack airplane for nose gear retraction (Ref Chapter 7, Airplane Jacking).
G. Pressurize hydraulic system A (Ref 29-11-0 MP).
H. Remove ground lockpin and cycle gear retraction several times to bleed air from package and lines.
WARNING: CHECK THAT GROUND LOCK ASSEMBLIES ARE INSTALLED IN MAIN LANDING GEAR TO PREVENT INADVERTENT OPERATION OF GEAR. INJURY TO PERSONNEL AND/OR DAMAGE TO EQUIPMENT COULD RESULT IF GEAR RETRACTS.
CLEAR ALL WHEEL WELL AREAS OF EQUIPMENT AND PERSONNEL BEFORE OPERATING GEAR.
I. Check package hydraulic connections for leaks.
J. Extend gear and install ground lock assembly (Ref 32-00-01).
K. Lower airplane and remove jacks.
510
Jun 20/87 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 32-33-31 Page 401
Nose Gear Modular Package Installation 500
32-33-31 Figure 401 Aug 15/67
Page 402
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
NOSE GEAR TRANSFER CYLINDER - REMOVAL/INSTALLATION
1. Equipment and Materials
A. Gear Ground Lock Assemblies (Ref 32-00-01)
2. Prepare to Remove Nose Gear Transfer Cylinder
A. Check that landing gear ground lock assemblies (Ref 32-00-01) are installed.
B. Depressurize hydraulic system.
3. Remove Transfer Cylinder
A. Disconnect and plug hydraulic lines attached to cylinder (Fig. 401).
B. Loosen clamp bolts until transfer cylinder can be removed. Remove cylinder from airplane.
C. Remove hydraulic unions and discard O-ring packings. Plug ports.
4. Install Nose Gear Transfer Cylinder
A. Remove plugs and install hydraulic unions in transfer cylinder with new O-ring packings.
B. Fill transfer cylinder from both ends with hydraulic fluid. Cap unions.
C. Position transfer cylinder in clamps. Adjust position of cylinder until hydraulic lines are aligned (Fig. 401).
D. Remove caps, plugs and connect hydraulic lines finger-tight.
E. Tighten clamps and secure cylinder.
F. Tighten hydraulic lines.
G. Jack airplane for nose gear retraction (Ref Chapter 7, Airplane Jacking.
H. Pressurize hydraulic system A (Ref 29-11-0 MP).
I. Remove ground lock assembly (Ref 32-00-01) and cycle gear retraction several times to bleed air from cylinder and lines.
WARNING: CHECK THAT GROUND LOCK ASSEMBLIES ARE INSTALLED IN MAIN LANDING GEAR TO PREVENT INADVERTENT OPERATION OF GEAR. INJURY TO PERSONNEL AND/OR DAMAGE TO EQUIPMENT COULD RESULT IF GEAR RETRACTS.
CLEAR ALL WHEEL WELL AREAS OF EQUIPMENT AND PERSONNEL BEFORE OPERATING GEAR.
510
Jun 20/87 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 32-33-41 Page 401
J. Check cylinder hydraulic connections for leaks.
K. Extend gear and install ground lock assembly (Ref 32-00-01).
L. Lower airplane and remove jacks.
Nose Gear Transfer Cylinder Installation 500
32-33-41 Figure 401 May 15/80
Page 402
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
NOSE GEAR LOCK MECHANISM - REMOVAL/INSTALLATION
1. Equipment and Materials
A. Gear Ground Lock Assemblies (Ref 32-00-01)
B. Naphtha, P-D-680 or equivalent solvent
C. Corrosion Preventive Compound, MIL-C-11796, Class 3
D. Grease, MIL-G-21164 or MIL-G-23827 optional to BMS 3-33
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