Remove/install planetary gear set 2 and multidisk clutch K38 with ring gear

AR27.50-S-0624EA

20.07.2020

Transmission

725.0 in model 447, 448

Remove/install planetary gear set 2 and multidisk clutch K38 with ring gear

1	Planetary gear system 2
2	Sun gear
3	K38 multiplate clutch

P27.50-2202-12

 Caution	Risk of injury caused by scraping or cutting body parts on sharp vehicle parts	Always wear protective gloves when working on or near sharp and non-deburred vehicle parts. Deburr repair panels.	AS00.00-Z-0017-01A
 Caution	Risk of injury to skin and eyes due to handling of transmission oil. Health risk caused by swallowing transmission oil	Wear protective gloves, protective clothing and safety glasses. Do not pour transmission oil into beverage bottles.	AS00.40-Z-0001-01A
Topical note	General information on repair work on transmission		AH27.00-S-1000-01PS
	Remove
1	Remove multiplate clutch K27 with output shaft and parking lock gear.		AR27.50-S-0614EA
2	Remove planetary gear set 4 and planetary gear set 3 with ring gear.		AR27.50-S-0623EA
3	Remove planetary gear set 2 (1) with sun gear (2) and disassemble.		AR27.50-S-0623-02EA
		 Pliers	*000589523700
4	Disassemble multiplate clutch K38 (3).		AR27.50-S-0624-01EA
		 Assembly tool	*000589936300
		 Pliers	*000589523700
		 Pressing tool	*208589002100
	Install
5	Assemble multiplate clutch K38 (3).		AR27.50-S-0624-01EA
		 Assembly tool	*000589936300
		 Pliers	*000589523700
		 Pressing tool	*208589002100
6	Measure and adjust clearance of multiplate clutch K38 (3).		AR27.51-S-0550-04EA
		 Commercially available devices/tools Workshop press Digital vernier caliper
		Clearance in multidisk clutch K38	*BE27.51-P-1005-01E
		 Pressure cylinder	*725589033100
		 Set of drifts	*722589041500
		 Pressing tool	*722589013100
		 Parallel support	*168589032100
7	Assemble and install planetary gear set 2 (1) with sun gear (2).		AR27.50-S-0623-02EA
		 Pliers	*000589523700
8	Install planetary gear set 4 and planetary gear set 3 with ring gear.		AR27.50-S-0623EA
9	Remove multiplate clutch K27 with output shaft and parking lock gear.		AR27.50-S-0614EA

Adjustment values for multidisk clutch/multidisk brake

Number	Designation				Transmission 725.0
BE27.51-P-1005-01E	Clearance in multidisk clutch K38	Contact force for clearance adjustment	F1	N	600
		Number of internal plates	3	mm	1,5…1,7
			4	mm	1,8…2,0
			5	mm	2,1…2,3
			6	mm	2,4…2,6