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 TASK 72-55-00-962-001-C00
 2.  Removal and Replacement of LPT Shaft Plug O-Rings
_________________________________________________
 A.  Special Tools and Equipment NOTE: Equivalent substitutes may be used for the following items:
____
 (1)  Tool No. 856A2573: Adapter, puller - LPT shaft plug, - or -Tool No. 856A2632 (ALT): Puller
 B.  Consumable Materials NOTE: Equivalent substitutes may be used for the following items:
____
 (1)  Code No. CP2442: Engine oil
 C.  Remove LPT plug as follows:
 S 022-003-C00

 (1)  
Remove retaining ring from forward end of LPT shaft, using a scriber.

 S 022-004-C00

 (2)  
Remove LPT shaft plug using puller adapter, 856A2573 or 856A2632. S 022-005-C00

 (3)  
Remove and discard O-rings located in forward/aft grooves. S 022-006-C00

 (4)  
AIRPLANES WITH CFMI SB 72-069; Remove and discard O-rings located in machining undercut relief.

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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
S 022-007-C00
 (5)  Remove the puller adapter from the LPT shaft plug. Install the LPT shaft plug in the storage box.
 D. Installation of LPT shaft plug
 S 462-013-C00
 CAUTION: IT IS ESSENTIAL TO CORRECTLY INSTALL NEW O-RING INTO THE SEAL
_______ GROOVE PROVIDED FOR THIS PURPOSE AT THE FORWARD END OF THE LPT SHAFT PLUG.
 (1)  
Lightly coat new O-rings with engine oil (CP2442) and install into forward groove and machined undercut relief of LPT shaft plug forward end.

 S 642-010-C00

 (2)  
Lightly coat new O-ring with engine oil (CP2442) and install into aft groove of LPT shaft plug.

 S 422-011-C00

 (3)  
Install LPT shaft plug assembly into forward end of LPT shaft and onto center vent tube.

 NOTE: Insert lug of LPT shaft plug in aligned slots of LPT coupling
____
 nut and LPT shaft.

 S 422-012-C00
 (4)  Install retaining ring onto LPT shaft (Fig. 201).
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
SEE A
ADAPTER 
SNAP ON PULLER 
O-RING 
A 
LPT SHAFT 
PLUG 
O-RINGS 
LPT SHAFT 
RETAINING RING 
A 

A
Low Pressure Turbine Shaft Assembly Figure 201 (Sheet 1)
K66523
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////

B

Low Pressure Turbine Shaft Assembly

Figure 201 (Sheet 2)

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K66525
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
TURBINE FRAME - DESCRIPTION AND OPERATION
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