NOTE: This tool is an alternate for tools 856A3427 and 856A3511.
____
 C. References
 (1)  
ENGINES WITH A CONSTANT SPEED DRIVE/AC GENERATOR;
 AMM 24-11-11/401, Generator Constant Speed Drive

 (2)  
ENGINES WITH A VSCF GENERATOR/CONVERTER;
 AMM 24-11-11/401, VSCF Generator/Converter

 (3)  
AMM 29-15-11/401 and/or AMM 29-15-12/401, Hydraulic Systems A and B Engine Driven Pump (EDP)

 (4)  
AMM 73-11-01/401, Fuel Pump Package

 (5)  
AMM 80-11-01/401, Engine Starter

 D. Access
 (1)  
Location Zones
 502 Engine No. 1 - Accessory Gearbox
 602 Engine No. 2 - Accessory Gearbox

 (2)  
Access Panels
 5746L Engine No. 1 - Left Fan Cowl Panel
 5846R Engine No. 2 - Left Fan Cowl Panel

 E. Procedure
 S 012-002-C00
 (1)  Do one of these applicable tasks to get access to the seal:
 (a)  
To remove the fuel pump, do this task: Fuel Pump Package Removal (AMM 73-11-01/401).

 (b)  
To remove the starter, do this task: Engine Starter Removal (AMM 80-11-01/401).

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737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
(c)  
To remove the hydraulic pump, do this task: Hydraulic Pump
 Removal (AMM 29-15-11/401 and/or AMM 29-15-12/401).).

 (d)  
ENGINES WITH A CONSTANT SPEED DRIVE/AC GENERATOR; To remove the constant speed drive/AC generator, do this task: Generator Constant Speed Drive Removal (AMM 24-11-11/401).

 (e)  
ENGINES WITH A VSCF GENERATOR/CONVERTER;
 To remove the VSCF generator/converter, do this task: VSCF
 Generator/Converter Removal (AMM 24-11-11/401).

 S 022-006-C00
 CAUTION:_______MAGNETIC SEALS ARE ALIGNED ASSEMBLIES. IF YOU CAUSE DAMAGE TO A COMPONENT OF THE SEAL, YOU MUST REPLACE ALL OF THE SEAL.
 (2)  Remove the magnetic seal:
 (a)  
Remove the three nuts and washers that attach the seal housing in the drive pad on the accessory gearbox (Fig. 201).

 (b)  
On the generator drive pad, remove the shroud from the gearbox gear shaft (Fig. 201).

 (c)  
Remove the seal housing and the static seal case with the
 jackscrews (Fig. 201).

 (d)  
Remove the retaining ring that holds the static seal case in
 the seal housing (Fig. 201).

 (e)  
Remove the static seal case from the seal housing (Fig. 201). 1) Remove and discard the O-ring from the seal case.

THE AREA TO BE

S-M56-MM-0310-(1)-03-C
Magnetic Seal (Example) Installation Figure 201 (Sheet 1)
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
2)  Remove and discard the O-ring from the outer diameter of the seal housing.
 (f)  Remove the rotating carbon ring with the applicable seal removal/installation tool (Fig. 202):
 NOTE: Use the tool 856A3427 or 856A3576 on the drive pad seals
____ for the fuel pump, generator, and hydraulic pump.
 Use the tool 856A3511 or 856A3576 on the starter pad seal.
 1)  Engage the claws behind the rotating ring and make the sleeve be against the rotating ring.

S-M56-MM-0311-(1)-02-C
Magnetic Seal (Example) InstallationFigure 201 (Sheet 2)
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