Inserting and measuring multiple-disc pack B1 - AR27.50-P-0870-01AA

ADJUSTMENT VALUES OF MULTI-DISK CLUTCH

Number	Designation				Transmission 722.6 as of 02.09.02 with single-sided multiple-discs
BE27.50-P-1001-02B	Play in multiple-disc brake B1	Number of multiple-discs	2	mm	2.20...2.60
			3	mm	2.40...2.80
			4	mm	2, 60...3, 00

Fig 1: Identifying Thrust Device (208 589 00 21 00)

Courtesy of MERCEDES-BENZ USA

Assemble the new disks for the multi-disk brake B1 in the sequence shown and dismantle individually.
Insert the new disks in ATF oil before installation for 1h.

Fig 2: Identifying Externally And Internally Toothed Plates, External Plate Carrier And End Disk
Courtesy of MERCEDES-BENZ USA
Mount pressure device (078) onto end disk (70c).
Compress the disk pack, to do so press the pressure device (078) together using a lever press up to stop.
The marking ring (smaller arrow) is then still visible.
Use a feeler gauge to measure the clearance (L) at three points between the snap ring (6h) and end disk (70c).
During the measuring procedure, the snap ring (6h) must lie against the upper contact surface of the groove in the external plate carrier (6b).
Use corresponding snap ring (6h) to adjust clearance (L) if necessary.
The snap rings (6h) are available at sizes 2.6 mm, 2.9 mm, 3.2 mm, 3.5 mm, 3.8 mm and 4.1 mm.

Fig 3: Compressing Disk Pack
Courtesy of MERCEDES-BENZ USA