71-00-02
 THE FORWARD MOUNT/THRUST REVERSER HINGES ú ú C08B Page 461 ú Mar 12/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
SEE A
11. RETAINER
10. NUT RETAINER
8. NUT 9. WASHER
13. NUT
CONE BOLT
FWD
BONDING
JUMPER

12. BOLT
(RIGHT SIDE) A
NOTE: RIGHT SIDE SHOWN. LEFT SIDE EQUIVALENT.
Forward Engine Mount Installation Figure 418 (Sheet 2)
C78381
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 71-00-02
 FORWAD MOUNT/THRUST REVERSER HINGES  ú ú C06B Page 462 ú Mar 12/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
SEE  A 
STRUT  FORWARD NUT RETAINER 1 AFT CONE BOLT 
HANGER FITTING 
2. NUT 1. WASHER 

3. NUT RETAINER 1 
4. WASHER 
TURBINE FRAME (REF)  5. BOLT 
1  -9 OR -11 -4 NUT RETAINER WITH FORWARD -7 -1 NUT RETAINER NUT RETAINERS ARE NOT INTERCHANGEABLE USE P/N 310A1039 A  FWD 
Aft Engine Mount Installation Figure 419 

C78372
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 71-00-02
 ALL  ú ú C08B Page 463 ú Mar 12/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
Power Plant Removal - Bootstrap Method
______________________________________ Remove the Power Plant
 (e)  Do these steps to release the aft cone bolts (Fig. 419):
 1) Remove the bolt (5) and washer (4) that attach the nut

 retainer (3) to the aft cone bolt nut (2). 2) Remove the nut retainers (3). 3) Put the fasteners in a plastic bag and temporarily attach
 them to the engine.
 (f)  
Loosen the forward cone bolt nuts 1-1/2 to 2 turns each.

 (g)  
Use the adapter wrenches for the aft cone bolt nut to loosen
 the aft cone bolt nut 1-1/2 to 2 turns as follows:

 NOTE: When you use the adapter wrench for the aft cone
____ bolt nut (C71001 or C71014), use the tool on the right side of the engine.
 1) Use the adapter wrench for the aft cone bolt nut (C71001 or C71014) to break the torque. 2) Use the aft cone bolt nut wrench (C71019-1) to lower the nut on the cone bolt.
 (h)  Slowly decrease the load on the lever hoists until the cone
 bolts are free.
 1) All of the three cone bolts must break loose from their

 mating fittings and allow the engine to move down slightly.
 2)  If the cone bolts do not come free, do these steps: a) Slowly decrease the load held by the hoists. b) Carefully shake the engine until the cone bolts are
 free.
 (i)  
Adjust the hoists until there is a small clearance between the cone bolt nuts and their mating surfaces.

 (j)  
Remove the aft cone bolt nut (2) and washer (1) (Fig. 419).

 (k)  
ENGINES WITHOUT THE VIBRATION ISOLATORS FOR THE FORWARD
 MOUNT/THRUST REVERSER HINGES;
 Remove the forward cone bolt nuts (4), washer (5), and
 retainer (7) (Fig. 418).

 (l)  
ENGINES WITH THE VIBRATION ISOLATORS FOR THE FORWARD
 MOUNT/THRUST REVERSERS HINGES;
 Remove the forward cone bolt nuts (13) and retainers (11)
 (Fig. 418).

 NOTE: Use the bonding jumper to keep the retainer attached
____ to the engine. Move the retainer away from the cone bolts.
 S 434-047-C00
 (3)  Install the thread protectors on the two forward and one aft cone bolts.
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