Disassembling, assembling transmission housing · ar2640s2002a · Mercedes-Benz WIS

AR26.40-S-2002A

Disassembling, assembling transmission housing

27.2.12

ENGINE 111.948 /978, 601.942 /970 in MODEL 638 except CODE (G40) Automatic transmission

S26.40-3002-09

1 Needle bearing (reverse shaft)

2 Outer ring of the tapered roller bearing (longitudinal differential)

3 Bearing bushing (shift lever)

4 Neutral lock bolt

5 Screw

6 Oil channel (main shaft)

7 Cover (shift lever)

8 Cover (shift lever)

9 Radial retainer

10 Bearing (transmission suspension)

11 Screw

12 Oil channel (input shaft)

13 Guide bolt (transmission lock)

 	Disassembling, assembling
1	Disassemble transmission		AR26.10-S-0001A
2	Remove rotary shaft seal (9)		AR26.40-S-0001A
3	Remove neutral locating pin (4)		AR26.60-S-6540A
4	Remove end cover (7, 8)		AR26.60-S-6550-03A
5	Remove bearing bush (3)		AR26.60-S-6550-02A
		 Impact drift	*638589131500
6	Remove needle bearing (1)		AR26.50-S-4800-02A
		 Impact drift	*638589111500
		 Internal extractor	*000589263300
		 Countering support	*000589333300
7	Remove oil way (12)	 Assembling: Smear thread of bolts (11) with adhesive.
		 Engine 111	*BA26.40-N-1008-01I
		 Engine 601	*BA26.40-N-1008-01J
		Loctite 243	*BR00.45-Z-1133-02A
8	Remove oil way (6)	 Assembling: Smear thread of bolts (5) with adhesive.
		 Engine 111	*BA26.40-N-1009-01I
		 Engine 601	*BA26.40-N-1009-01J
		Loctite 243	*BR00.45-Z-1133-02A
9	Remove guide pin (13) using a suitable tool	 Heat up housing to approx. 80-100°C if necessary.
		 Assembling: The exact mounting depth of the guide pin (13) is determined by the impact drift.
		 Impact drift	*638589121500
10	Remove tapered roller bearing outer race (2)		AR26.50-S-5000-01A
		 Impact drift	*638589101500
		 Internal extractor	*000589313300
		 Countering support	*000589343300
		 Two-arm puller	*000589883300
		 Thrust piece	*321589006300
11	Remove bearing (10)		AR26.10-S-0030A
12	Assemble in reverse order

 Transmission housing

Number	Designation		Model 638 with engine 111.948/ 978 without code G40


BA26.40-N-1008-01I	Oil way (input shaft) to transmission housing	Nm	7
BA26.40-N-1009-01I	Oil way (output shaft) to transmission housing	Nm	7

 Transmission housing

Number	Designation		Model 638 with engine 601.942/ 970 without code G40


BA26.40-N-1008-01J	Oil way (input shaft) to transmission housing	Nm	7
BA26.40-N-1009-01J	Oil way (output shaft) to transmission housing	Nm	7

638 589 12 15 00

638 589 13 15 00

638 589 10 15 00

638 589 11 15 00

Drift punch

000 589 33 33 00

000 589 34 33 00

000 589 26 33 00

000 589 31 33 00

Bracing tool

Inner grip puller

Bracing tool

000 589 88 33 00

321 589 00 63 00

Pressure part

Puller

Repair materials

Number	Designation	Order number
BR00.45-Z-1133-02A	Loctite 243	A 613 989 09 71

ar2610s0001a Disassemble, assemble transmission
ar2610s0030a Remove/install bushing of transmission mounting
ar2640s0001a Removing, installing shaft seals
ar2650s480002a Removing, installing reverse gear shaft needle bearing
ar2650s500001a Removing, installing differential taper roller bearing
ar2660s6540a Remove/install neutral locating bolt
ar2660s655002a Removing, installing 1st/2nd gear shift rod bush in transmission housing
ar2660s655003a Removing, installing shift rod end cover in transmission housing