NOTE: Rigging pins are part of F70207-61.
(2)
Ground Lock Assemblies (Ref 32-00-01)
(3)
Lockwire (Monel) - MS20995 NC20
(4)
Spanner Wrench - AN8514-7
B. Prepare Piston Position Cables for Removal (Fig. 401)
(1)
Check that nose and main ground lock assemblies are installed (Ref 32-00-01).
(2)
Jack nose of airplane until nose gear tires clear ground (Ref Chapter 7, Jacking).
(3)
Remove aft access panel from left nose wheel well bulkhead to gain access to nose gear piston position cable (NGPPA, NGPPB) turnbuckles (42).
(4)
Install rigging pins in cable drum (32) and piston position cable quadrant (24).
C. Remove Piston Position Cables (Fig. 401)
(1)
Loosen piston position cables (NGPPA and NGPPB) at their respective turnbuckles (42) outside the wheel well left bulkhead.
(2)
Disconnect nose gear piston position cables NGPPA(M) and NGPPB(N) (view 2).
(a)
Remove cotter pins at ends of cable terminals (25) on each side of the piston position cable quadrant (24).
(b)
Remove cable guards (27, 23) and detach cable ends from quadrant at the shock strut.
510
May 20/82 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 32-51-31 Page 401
NOTE: Terminal (25) is shown removed from its groove in quadrant (24) as cable turnbuckles (42) have been loosened. Removal is typical on each side of quadrant.
(3)
Remove cap screw (10) and nut lock (9).
(4)
Remove left trunnion pin nut (7) using spanner wrench (detail A).
(5)
Pull pressure seal (14) inboard from inboard end of left trunnion pin (8).
NOTE: The eye of the eyebolt (16) which holds pressure seals segments (14) together may be used to pull seal from trunnion pin (8).
(6)
Remove ring (17) and eyebolt (16) to remove pressure seal retainers (13, 15) from pressure seal segments (14) and separate segments from around piston position cables (detail A).
(7)
Pull cables through left trunnion pin (8).
(a) Remove NGPPA and NGPPB cable guards outside of wheel well left bulkhead, so cables can be pulled through pulley bracket.
(8)
Pull cables through nut (7), ring (17), trunnion pin.
(9)
Remove cotter keys (26) from upper and lower groove flanges in the forward piston position quadrant (27).
D. Install Piston Position Cables
(1)
String replacement cables through fairleads.
NOTE: For cable length and fittings, see chart on Fig. 402. For general cable installation information, refer to control cables, Chapter 27.
(2)
Connect nose gear piston position cables NGPPA, NGPPB.
(a)
Feed piston position cables NGPPA(M) and NGPPB(N) through left trunnion pin, each half of pressure seal retainer ring (13, 15), inboard left trunnion pin nut (7), and through their respective cable pulley brackets to the piston position cable quadrant on aft side of shock strut (37).
(b)
Install cable guards (22, 23) which were removed when cables were disconnected.
(c)
Insert cable terminals (25) in their respective recesses in quadrant (27) and install terminal retaining cotter pins in holes at end of recesses.
(3)
Connect cables to their respective turnbuckles (41, 42).
(4)
Adjust piston position system per 32-51-0, Nose Wheel Steering System -Adjustment/Test.
(5)
Install locking clips in turnbuckles
500
32-51-31 Page 402 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. Nov 15/80
500 Steering System Cables Installation
Nov 15/80 Figure 401 (Sheet 1) 32-51-31
Page 403
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
Steering System Cables Installation 520
32-51-31 Figure 401 (Sheet 2) Feb 15/69
Page 404
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
500 Steering System Cables Removal/Installation
Aug 15/67 Figure 401 (Sheet 3) 32-51-31
Page 405
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
3. Removal/Installation Steering System Cables
A. Equipment and Materials
(1) Refer to par. 2A.
B. Prepare Steering System Cables (NWSA, NWSB) for Removal (Fig. 401)
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