Disassemble/assemble multidisk clutch K81

AR27.50-D-0622TSC

14.07.2019

Transmission

725.0 in model 907

Disassemble/assemble multidisk clutch K81

P27.50-2211-08

1	Inner plate carrier	5	Pliers	8	Snap ring
2	Multiplate clutch K81	6	Undulated washer	9	Disk spring
3	Pressure device	7	Pressure device	10	Spring retainer
4	Snap ring

P27.50-2212-08

6	Undulated washer	12	Sealing ring
8	Snap ring	13	Piston
9	Disk spring	14	Hub
10	Spring retainer	15	Sealing rings
11	Spring retainer

	Notes on automatic transmission		AH27.19-P-0001-01NKB
 	Disassemble/assemble
1	Clamp pressure device (3) into vise.	 Thrust device	*725589003300
2	Mount inner plate carrier (1) with multiplate clutch K81 (2) onto pressure device (3).	 Thrust device	*725589003300
3	Mount pressure device (3) onto inner plate carrier (1) and push down far enough until the snap ring (4) is exposed.	 Thrust device	*725589003300
4	Remove snap ring (4) using pliers (5).	 Pliers	*000589523700
5	Remove pressure device (3) and remove inner plate carrier (1) with multiplate clutch K81 (2).	 Thrust device	*725589003300
6	Remove undulated washer (6).	 Assembly: Ensure correct installation position.
7	Mount pressure device (7) onto disk spring (9) and push down far enough until the snap ring (8) is exposed.	 The lugs (arrows) must engage in the disk spring (9). Otherwise, the disk spring (9) may be damaged when being pushed down.
		 The lugs (arrows) are used to align the disk spring (9) with the hub.
		 Thrust device	*725589003300
8	Remove snap ring (8).	 Pliers	*000589523700
9	Remove pressure device (7) and take out snap ring (8).	 Thrust device	*725589003300
10	Remove spring retainer (10).	 Assembly: Ensure correct installation position.
11	Remove disk spring (9).	 Assembly: Ensure correct installation position.
12	Remove spring retainer (11).	 Replace sealing ring (12).
13	Remove piston (13).
14	Remove hub (14) from pressure device (7).	 Replace sealing rings (15).
		 Thrust device	*725589003300
15	Assembly in reverse order
	Measure
16	Measure clearance of multiplate clutch K81 (2) and adjust if necessary.		AR27.51-D-0560-03TSC
		Clearance in multidisk clutch K81	*BE27.51-P-1006-01E
		 Pressure cylinder	*725589033100
		 Support	*725589023100
		 Drift	*722589061500
		 Set of drifts	*722589041500
		 Pressing tool	*722589013100

Adjustment values for multidisk clutch/multidisk brake

Number	Designation				Transmission 725.0
BE27.51-P-1006-01E	Clearance in multidisk clutch K81	Contact force for clearance adjustment	F1	N	1600
		Number of internal plates, single-sided	1	mm	2,5…2,7
			6	mm	2,5…2,7
		Number of internal plates, double-sided	4	mm	1,8…2,0
			5	mm	2,2…2,4
			6	mm	2,6…2,8