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A 737-300/400/500MAINTENANCE MANUAL
(c) Move the trunnion link so that the shock strut will not touch it (Stage 2, Fig. 405). Attach the trunnion link in position to clear the gear.
CAUTION:_______ DO NOT USE TOO MUCH FORCE TO REMOVE THE AFT TRUNNION JOURNAL OF THE SHOCK STRUT FROM THE AFT TRUNNION BEARING. TOO MUCH FORCE
CAN CAUSE DAMAGE TO THE TWO PARTS.
(d) (e) (f) (g) Move the shock strut (13) carefully forward so that the aft trunnion journal moves out of the aft trunnion bearing (12), (Fig. 408).When the aft trunnion journal is clear of the aft trunnion bearing (12), roll the landing gear wheel in the aft direction to lower the shock strut (13) until it is clear of the wheel well (Stage 2, Fig. 405).While a minimum of three persons holds the shock strut (13), move the landing gear out from below the airplane (Stage 3, Fig. 405).Put the landing gear on a support.
NOTE:____ Use care not to permit the shimmy damper to touch the ground when the landing gear is supported.
S 024-199
(8) Remove the aft trunnion bearing (12) and the grease seal (10) from
the forward side of the main landing gear support beam (Fig. 408).
S 024-214
(9) Remove the trunnion link (9) and the forward trunnion bearing
assembly (3), (Stage 4, Fig. 405) and (Fig. 407).
(a) Remove the locking key (2) from the bering support fitting (8).
(b) Loosen and remove the forward bearing assembly (3) and the
trunnion link (9).
(c) Remove the lock bolt (6).
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A 737-300/400/500MAINTENANCE MANUAL
SEE A
FWD INBD
REAR
SPAR
12. NUT (2 LOCATIONS)
8. BEARING11. WASHER SUPPORT
(2 LOCATIONS)
FITTING
7. TRUNNION BEARING 2. LOCKING KEY
FUSE BOLT
10. LOCKBOLT (2 LOCATIONS)
1. KEYWASHER 9. TRUNNION LINK
6. LOCKBOLT
3. BEARING ASSEMBLY
FWD
5. DRAG STRUT
UPPER BOLT
4. DRAG STRUT
A
Trunnion Link Bearing AttachmentFigure 407
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A
737-300/400/500MAINTENANCE MANUAL
1. RETAINER NUT SEE A LOCKBOLTS
AFT TRUNNION BEARING LUBE FITTING
MAIN LANDING RETAINER 2. BEARING
GEAR SUPPORT LOCK
BEAM
SEE B
9. BEARING RETAINER
INBD
FWDOUTBD
3. BEARING RETAINER NUT
FWD
4. GREASE RESERVOIR
A
MAIN LANDING
GEAR SUPPORT
BEAM
BUSHING
12. AFT TRUNNION 6. FUSE
11. SEAL BEARING NUT
RING 5. LOCKBOLT
8. KEY
10. GREASE
SEAL
7. WASHER
13. SHOCK STRUT
AFT TRUNNION INBD
JOURNAL
FWD
(GREASE RESERVOIR NOT SHOWN)
B
Aft Trunnion Bearing Installation
Figure 408
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737-300/400/500MAINTENANCE MANUAL
(d)
Remove the trunnion bearing fuse bolt (7) and the key washer (1).
(e)
Remove the bearing assembly (3) from the trunnion link (9).
S 144-200
(10)
Remove corrosion and primer from the outer surface of the aft trunnion bearing (12) and the inner surfaces of the bearing housing of the support beam (Fig. 408).
S 644-201
(11)
Lightly lubricate the bearing surfaces of the aft trunnion bearing and the aft trunnion journal of the shock strut with grease.
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