(3)
Open manual extension access door in flight deck floor.
(4)
Attach spring scale to nose gear manual extension handle.
(5)
Pull upward and forward on manual extension handle with spring scale for full travel of approximately 8 inches.
(a)
Check that force required to release nose gear uplock system does not exceed 28 pounds.
(b)
Check that manual extension handle returns to stowed position without hesitation or evidence of binding.
(6)
Close manual extension access door.
500
Jun 20/85 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 32-35-0 Page 505
NOSE GEAR MANUAL EXTENSION RELEASE MECHANISM - REMOVAL/INSTALLATION
1. Equipment and Materials
A. Grease - MIL-G-21164 or MIL-G-23827 optional to BMS 3-33 (Ref 20-30-21)
2. Remove Nose Gear Manual Extension Release Mechanism (Fig. 401)
A. Remove cabin floor panel (16) to remove turnbuckle locking clips and disconnect cable MNGEA at turnbuckle (14).
B. Detach return spring from torque tube quadrant (11).
C. Remove cotter pins and detach cable MNGEA from torque tube quadrant (11).
D. Remove bolt (1) securing roller (3) to torque tube (4) and remove washer (2) and roller (3).
E. Remove lockwire securing bearing retainer (7) to torque tube (4) and remove bearing retainer.
F. Remove outboard bearing (10) from bracket assembly (14).
G. Remove spacer (9) from torque tube (4).
H. Remove torque tube (4) from bracket assembly (14) by pulling outboard on torque tube (4).
3. Install Nose Gear Manual Extension Release Mechanism (Fig. 401)
A. Insert torque tube (4) through outboard bearing (10) in bracket assembly (14) into inboard flange of bracket assembly (14).
B. Install spacer (9) over torque tube (4) through inboard flange of bracket assembly (14) so that end of spacer (9) presses against outboard bearing (10).
C. Install outboard bearing (10).
527
May 01/03 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 32-35-11 Page 401
Nose Gear Manual Extension Release Mechanism Installation 527
32-35-11 Page 402 Figure 401 (Sheet 1) BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. Feb 01/95
D. Install bearing retainer (7) on torque tube (4) as follows:
(1)
Apply grease to threads of bearing retainer (7).
(2)
Install bearing retainer on torque tube and tighten bearing retainer 75 to 125 pound-inches.
(3)
Secure bearing retainer to torque tube with lockwire through hole in roller fitting (5).
E. Install roller (3), washer (2), and bolt (1) in torque tube (4).
G. Connect cable MNGEA at turnbuckle (14). (See view 2.)
H. Connect return spring (11) to torque tube quadrant (10).
I. Adjust and test manual extension system. Refer to 32-35-0, Nose Gear Manual Extension System - Adjustment/Test.
527 Nose Gear Manual Extension Release Mechanism Installation
Aug 15/71 Figure 401 (Sheet 2) BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 32-35-11 Page 403
NOSE GEAR MANUAL EXTENSION SYSTEM CABLES - REMOVAL/INSTALLATION
1. Equipment and Material
A. Rigging Pin -0.311 + 0.000/-0.002 -inch diameter x 5.0 inches long, Type MS20392-4C
NOTE: Rigging pin is F70207-3.
B. Grease - MIL-G25760 (Ref 20-30-21)
C. Cable tension-meter
2. Remove Nose Gear Manual Extension System Cables
A. Remove cabin floor panel (12, Fig. 401).
B. Detach return spring (9) from torque tube quadrant (7).
C. Remove turnbuckle locking clips and loosen turnbuckle (11) of cable MNGEA.
D. Remove cotter pin and detach manual extension handle cable from control drum (3).
E. Open manual extension access door (2) and remove handle and cable (1).
F. Remove cable retainer and detach cable MNGEA from control drum (3).
G. Remove pressure seal (8) in nose gear wheel well ceiling (view 1 (Ref Chapter 20 Control Cable Air Pressure Seal).
H. Remove cotter pins and detach cable MNGEA from torque tube pulley (7).
I. Remove cables (Ref Chapter 20 Control Cables).
505
Aug 15/77 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 32-35-21 Page 401
Nose Gear Manual Extension System Cable Installation 525
32-35-21 Figure 401 (Sheet 1) Aug 15/77
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