F59684
Steering Collar Installation 5B9
32-51-61 Figure 401 (Sheet 1) Feb 01/96
Page 402
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
509 Steering Collar Installation
Aug 1/74 Figure 401 (Sheet 2) 32-51-61
Page 403
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
H. Remove forward and aft steering collar halves (10, 17).
(1)
Remove aft steering collar half (17) in aft direction.
(2)
Remove forward steering collar half (10) by rotating collar half around the oleo.
(3)
Remove forward and aft bearing halves (9, 15).
(a)
Remove four upper (7) and four lower (6) steering support plate bolts.
(b)
Move steering support plates forward.
(c)
Slip the bracket key off the slot of the forward bearing half to enable the bearing to rotate off.
NOTE: These bearings are matched pairs. Forward bearing half (9) has a slot which fits onto bracket key to prevent bearing from rotating.
(d)
Support the metering valve if necessary.
4. Install Steering Collar
A. Thoroughly clean all mating surfaces between outer cylinder and bearing halves and apply a light coat of grease.
B. Install forward and aft bearing halves (9 and 15).
NOTE: Bearings are matched pairs. Serial numbers on forward and aft bearing flanges should be located together.
C. Install Steering Collars
(1)
Thoroughly clean all mating surfaces and apply a light coat of grease.
(2)
Check that steering collars (10 and 17) to be installed are a matched set and that laminated shims bonded to aft collar are intact.
(3)
Position forward and aft collar halves (10 and 17) on shock strut (13).
(4)
Install lower flanged bushing (8).
(5)
Check gap between forward and aft collar halves is 0.02 +0.01 inch.
(6)
Pack and fillet seal gap with sealant.
CAUTION: THE CURING OF THE SEALANT IS CRUCIAL TO THE LUBRICATION OF THIS BEARING. IMPROPER CURING MAY RESULT IN STEERING COLLAR BEARING FAILURE.
(7)
Lubricate steering collar (Ref 12-21-21).
D. Connect upper torsion link to steering collar. Do not connect torsion links at apex.
E. Check steering collar for freedom of movement.
(1)
Apply a maximum force of 5 pounds horizontally to apex end of upper torsion link with torsion link held horizontal.
(2)
Check that steering collar is free to rotate 90 degrees in either direction.
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32-51-61 Page 404 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. Feb 20/90
F. Turn steering collar approximately 55 degrees left and install right steering collar bolt (23) and steering collar bolt bushings (8 and 11).
G. Tighten nut to 600-700 pound-inches lube torque.
H. Turn collar approximately 110 degrees right and install left steering collar bolt and steering collar bolt bushings (8 and 11).
I. Tighten nut to 600-700 pound-inches lube torque.
J. Install steering system cables.
(1)
Remove tape from cables coiled to trunnion.
(2)
Insert steering cable terminals (NWSA, NWSB) in recess in grooves on aft side of steering collar (20).
(3)
Install spring pins (22) in holes provided in steering collar (20) (view 2).
(4)
Lockwire spring pins (22) with lockwire (21).
K. Lubricate steering collar and torsion link fittings (Ref Chapter 12).
L. Adjust cable tension (Ref 31-51-0 A/T).
M. Install torsion link apex bolt.
N. Check steering system operation (Ref 32-51-0 A/T).
500
Oct 20/89 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 32-51-61 Page 405
STEERING COLLAR – INSPECTION/CHECK
1. General
A. This data consists of illustrations and wear limits charts. No procedure is given in this section for gaining access to permit inspection. Refer to Steering Collar – Removal/Installation.
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