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Disassemble/assemble multidisk clutch K81 - AR27.50-P-0622EWM

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TRANSMISSION 725.0 

Fig 1: Multidisk Clutch K81 Components (1 Of 2)
G09975823Courtesy of MERCEDES-BENZ USA
Fig 2: Multidisk Clutch K81 Components (2 Of 2)
G09975824Courtesy of MERCEDES-BENZ USA
DISASSEMBLINGASSEMBLING Disassemble/assemble     
1 Clamp pressure device (3) into vise SPECIAL TOOL Thrust device Fig 3
2 Mount internal plate carrier (1) with multidisk clutch K81 (2) onto pressure device (3)    
3 Mount pressure device (3) onto internal plate carrier (1) and push down far enough until the retaining ring (4) is exposed SPECIAL TOOL Thrust device Fig 3
4 Remove retaining ring (4) using pliers (5) SPECIAL TOOL Pliers Figure
5 Remove pressure device (3) and remove internal plate carrier (1) with multidisk clutch K81 (2) SPECIAL TOOL Thrust device Fig 3
6 Remove undulated washer (6) IMPORTANTAssembly:  Install components in correct positions.  
7 Mount pressure device (7) onto disk spring (9) and push down far enough until the retaining ring (8) is exposed NOTES The lugs (arrows) must engage in the disk spring (9).
Otherwise, the disk spring (9) may be damaged when being pushed down.
IMPORTANT The lugs (arrows) are used to align the disk spring (9) with the hub.
 
SPECIAL TOOL Thrust device Fig 3
8 Remove retaining ring (8) SPECIAL TOOL Pliers Figure
9 Detach pressure device (7) and remove retaining ring (8)    
10 Remove spring cup (10). IMPORTANTAssembly:  Install components in correct positions.  
11 Remove disk spring (9) IMPORTANTAssembly:  Install components in correct positions.  
12 Remove spring cup (11). IMPORTANT Replace sealing ring (12).  
13 Remove piston (13)    
14 Remove hub (14) from pressure device IMPORTANT Replace sealing rings (15).  
SPECIAL TOOL Thrust device Fig 3
15 Assemble in the reverse order    
16 Measure and adjust clearance   AR27.51-P-7229EWM
Fig 3: Identifying Thrust Device (725 589 00 33 00)
G09975825Courtesy of MERCEDES-BENZ USA
Fig 4: Identifying Pliers (000 589 52 37 00)
G09975826Courtesy of MERCEDES-BENZ USA