(2)
Place bearing assembly (3, Fig. 408) on end of trunnion.
(3)
Install key washer (l). Make sure keys on trunnion and washer are fully engaged.
(4)
Install trunnion bearing bolt (7). Tighten bolt 5000 to 5500 pound-inches lube torque. Line up a hole in bearing bolt with tapped hole in key washer (l).
(5)
Install lockbolt (6) through head of bearing bolt and tighten to standard torque.
(6)
Lockwire lockbolt to trunnion bolt.
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S. Install trunnion link.
(1)
Apply BMS 3-28 antiseize compound to the external threads of the forward trunnion bearing assembly and the internal threads of the bearing support fitting.
(2)
Place trunnion link in position and screw bearing assembly (3,\Fig. 408) into bearing support fitting (8).
(3)
Tap trunnion link down over lugs on shock strut until holes in link and lugs are vertically aligned.
(4)
Adjust lateral alignment of holes by screwing bearing assembly (3) in or out of bearing support fitting (8).
(5)
Deleted.
(6)
Place walking beam arm (2) in position between shock strut lugs (3) with curved lug facing inboard.
(7)
Install thread protector (8) on trunnion link pin (9). Coat pin with thin layer of grease and insert through trunnion link (7), shock strut lugs (3) and beam arm (2) from outboard side.
(8)
Rotate pin to align hole in pin locking lug with lockbolt (4) in trunnion link (7).
(9)
Adjust the trunnion bearing so that you can insert the trunnion pin by hand. Remove the thread protector (8). Add special washer (5A) and trunnion link pin nut (6). Leave nut finger-tight.
CAUTION: MAKE SURE YOU USE THE SPECIAL UNDERSIZE NUT ON TRUNNION PINS WITH UNDERSIZE THREADS. CHECK FOR BLACK MARKING WITH A YELLOW BACKGROUND ON THE TRUNNION PIN. THIS IS AN INDICATION THAT THE THREADS HAVE BEEN REWORKED (UNDERSIZE). IF YOU USE A STANDARD NUT ON UNDERSIZE THREADS, THE NUT COULD COME OFF AND CAUSE STRUCTURAL DAMAGE TO THE LANDING GEAR.
(10)
Install locking key (2, Fig. 408)
NOTE: Locking key may be installed in either of two positions to align tabs with slots.
543
Aug 01/94 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 32-11-0 Page 415
T. Connect drag strut.
(1) Align upper end of drag strut (4, Fig. 408) with lug on trunnion link.
NOTE: It may be necessary to adjust bearing assembly (3) to align drag strut attachment.
CAUTION: ENSURE THAT DRAG STRUT UPPER ATTACHMENT BOLT (5) IS SAME BOLT OR REPLACEMENT BOLT IS SAME PART NUMBER AS THAT WHICH WAS REMOVED IN STEP 4.I.(l). DRAG STRUT UPPER ATTACHMENT BOLT (5) IS A STRUCTURAL FUSE AND MUST BE INSTALLED IN SAME LOCATION FROM WHICH REMOVED TO MAINTAIN STRUCTURAL INTEGRITY OF THE REAR SPAR.
(2)
Insert attachment bolt (5) with head inboard on both the left-hand and right-hand gears. Install washer and nut.
(3)
Tighten nut as tightly as possible by hand. If necessary, back off nut to align nearest castellation with cotter pin hole in bolt. Lock nut with cotter pin.
(4)
Swing lower end of side strut into position in side strut universal.
(5)
Insert attachment bolt with head end outboard. Install washer and nut (Fig. 405).
(6)
Tighten nut to run-on torque plus 400 pound-inches.
U. Secure trunnion pin.
(1)
Align small holes in beam arm (2, Fig. 409) with hole in trunnion pin (9).
(2)
Insert antirotation bolt (l) from top. Add washer and nut.
(3)
Tighten trunnion pin nut (6) to run-on torque plus 1000-1200 pound-inches. Loosen the nut and tighten to 250-750 pound-inches.
(4)
Place retainer washer (5) over serrations on nut (6) and lockbolt (4) in trunnion link (7).
(5)
If necessary, adjust position of nut (6) within torque limits to align hole in retainer washer
(5) with lockbolt (4).
(6)
Install washer and nut on each lockbolt (4) protruding through lugs on trunnion pin (9) and retainer washer (5).
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