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A

737-300/400/500
MAINTENANCE MANUAL

SEE A
OUTBD 
FWD 
SHOCK STRUT 
1. DOWNLOCK SPRING 
TRUNNION LINK  6. TRUNNION PIN 
5. SPRING SUPPORT SHAFT 
2. SPRING SUPPORT CAP  4. REACTION LINK 
2A. WASHER  FWD 
1. DOWNLOCK SPRING  A  3. REACTION LINK UNIVERSAL 
Reaction Link Attachment to Shock Strut Figure 404 

M50691
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A
737-300/400/500MAINTENANCE MANUAL
SWING UPTRUNNION LINK CLEAR OFPIN REMOVED
SHOCK STRUT LUGS
REAR
ADJUST THE POSITION OF THE SHOCK
FWD IF IT IS NECESSARY

STAGE 1 STAGE 2 DISCONNECT DRAG STRUT AND REMOVE GEAR FROM REMOVE TRUNNION LINK PIN REAR TRUNNION BEARING
SUPPORT GEAR
HIGH ENOUGH TO
KEEP TORSION

UNSCREW FORWARD
LINKS CLEAR BEARING SLEEVEREAR WING

STAGE 3 STAGE 4 REMOVE GEAR FROM AIRPLANE REMOVE TRUNNION LINK
Main Landing Gear Removal Sequence
Figure 405

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M50731
A
737-300/400/500MAINTENANCE MANUAL
SEE A
1. ANTIROTATION BOLT
OUTBD
FWD
2. ACTUATOR WALKING BEAM ARM
4. TRUNNION PIN LOCKBOLT
3. SHOCK
9. TRUNNION PIN   STRUT
8. THREAD PROTECTOR4. TRUNNION PIN
 (F80115-1) LOCKBOLT
6. TRUNNION
FWD  INBD  5A. SPECIAL  PIN NUT 
WASHER 
7. TRUNNION 
LINK  5. RETAINER 
WASHER
A 

Trunnion Link Shock Strut Attachment
Figure 406

M50735
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737-300/400/500MAINTENANCE MANUAL
 (c)  
Attach the drag strut (4) to the shock strut with a line, (Stage 2, Fig. 405).

 (d)  
Mark and keep the drag strut upper bolt (5) for subsequent installation.

 NOTE: The bolt is identified by a yellow head.
____
 (e)  
Lift the airplane on jacks until the tires clear the ground so that the landing gear can move in the inboard direction (to retraction).

 (f)  
Lightly hit the end of the trunnion link with a lead hammer to move it upward to clear the shock strut lugs (Stage 2, Fig. 405).

 (g)  
Hold the trunnion link in position so that it does not touch the landing gear

 S 024-099
 (7)  
Remove the Shock strut (13), (Fig. 408).

 (a)  
Get access to the aft trunnion bearing (12). 1) Remove the lockbolts (1) and the bearing retainer lock (2). 2) Remove the bearing retainer nut (3). 3) Remove the grease reservoir (4) and the seal ring (11). 4) Remove the lockbolt (5). 5) Loosen the fuse nut (6). 6) Remove the washer (7) and the key (8).

 (b)  
Use a minimum of three persons to lower the landing gear.

 1)  If necessary, use the applicable holding fixture to lower the landing gear.
　
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