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Disassemble/assemble multidisk clutch K27 - AR27.50-P-0619EWM

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TRANSMISSION 725.0 

Fig 1: Multidisk Clutch K27 Components (1 Of 2)
G09975817Courtesy of MERCEDES-BENZ USA
Fig 2: Multidisk Clutch K27 Components (2 Of 2)
G09975818Courtesy of MERCEDES-BENZ USA
IMPORTANT Notes on automatic transmission   AH27.19-P-0001-01NKB
DISASSEMBLINGASSEMBLING Disassemble/assemble     
1 Remove retaining ring (5) from multidisk clutch K27 (1)    
2 Remove clutch pack (6)    
3 Mount pressure device (8) onto external plate carrier (7) and push down far enough on spring cup (9) enough until the retaining ring (10) is exposed. Workshop press (stationary)  
SPECIAL TOOL Set of drifts Figure
SPECIAL TOOL Pressing tool Figure
4 Remove retaining ring (10) SPECIAL TOOL Pliers Figure
5 Apply some compressed air through hole to output shaft (2) and remove piston (12) IMPORTANT Slowly apply compressed air.
IMPORTANT The compressed air causes the piston (12) to be pushed out of the external plate carrier (7).
 
6 Remove spring cup (9) INSTALLATION IMPORTANT Pay attention to installation position.  
7 Remove disk spring (11) INSTALLATION IMPORTANT Pay attention to installation position.  
8 Replace sealing rings (15, 16, 17) Assembly:  To do so, apply light coating of grease to sealing rings (15, 16, 17).  
INSPECT Check     
9 Check bearing (13) If damage is found on bearing (13),

Replace external plate carrier (7) and needle roller bearing in transmission housing.
 
Disassemble/assemble transmission housing AR27.40-P-0510EWM
10 Check park pawl gear (3) If damage is found on the park pawl gear (3),

Replace external plate carrier (7) and needle roller bearing in transmission housing.
 
Disassemble/assemble transmission housing AR27.40-P-0510EWM
11 Replace Torlon rings (14) NOTESAssembly: 
Do not bend or press Torlon rings (14). Otherwise, the Torlon rings (14) may be damaged.
IMPORTANTAssembly:  Mount Torlon rings (14) SPECIAL TOOL onto sleeve. SPECIAL TOOL Mount sleeve over output shaft (2) at top and slowly remove Torlon rings (14) from output shaft.
 
SPECIAL TOOL Set of sleeves Fig 3
12 Install in the reverse order    
13 Measure and adjust clearance   AR27.51-P-7229EWM
Fig 3: Identifying Set Of Sleeves (725 589 01 14 00)
G09975819Courtesy of MERCEDES-BENZ USA
Fig 4: Identifying Set Of Drifts (722 589 04 15 00)
G09975820Courtesy of MERCEDES-BENZ USA
Fig 5: Identifying Pliers (000 589 52 37 00)
G09975821Courtesy of MERCEDES-BENZ USA
Fig 6: Identifying Pressing Tool (722 589 01 31 00)
G09975822Courtesy of MERCEDES-BENZ USA