Remove/install radial shaft sealing ring at output flange

AR27.40-P-0205RT

2.9.09

TRANSMISSION 722.9 in MODEL 251

Remove/install radial shaft sealing ring at output flange

P27.40-2053-06

1 Collar nut

2 Connecting flange

3 Output shaft

4 Radial shaft seal

9 Drift

P27.30-2011-12

1 Collar nut

2 Connecting flange

3 Output shaft

5 Rear engine mount

6 Bolts

28 Intermediate housing

Modification notes

25.6.07

Operation sequence adapted to the change in repair method

 	Remove/install
Danger!	Risk of death caused by vehicle slipping or toppling off of the lifting platform.	Align vehicle between columns of vehicle lift and position four support plates at vehicle lift support points specified by vehicle manufacturer.	AS00.00-Z-0010-01A
	Notes on self-locking nuts and bolts		AH00.00-N-0001-01A
1.1	Remove transfer case	Vehicles with 4MATIC	AR28.10-P-0100RT
		 Installation: Grease toothing of transfer case input shaft lightly.
		MB long-life grease	*BR00.45-Z-1001-06A
1.2	Remove adapter housing	Vehicles without 4MATIC	AR27.30-P-0800RT
		 Installation: Grease toothing of adapter housing input shaft lightly.
		MB long-life grease	*BR00.45-Z-1001-06A
2	Remove intermediate housing (28)	 Installation: Install new bolts (6).
			*BA27.40-P-1020-01A
3	Unscrew collar nut (1) at connecting flange (2).		*BA27.50-P-1001-01A
			*126589020900
4	Detach connecting flange (2) from output shaft (3).
5	Use a screwdriver to lever radial shaft sealing ring (4) out of transmission housing.	 Do not damage seat of radial shaft sealing ring (4) as this can lead to oil loss or transmission damage.
6	Press in new radial shaft sealing ring (4) using drift (9)	 Installation: Press in radial shaft sealing ring (4) until drift (9) touches transmission housing.
			*140589121500
7	Install in the reverse order
Danger!	Risk of accident due to vehicle starting off when engine is running Risk of injury caused by contusions and burns during starting procedure or when working near the engine as it is running	Secure vehicle to prevent it from moving by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.	AS00.00-Z-0005-01A
8	Perform engine test run and check transmission for leaks with engine running

 Gear assembly

Number	Designation		Trans-mission 722.55/6/9


BA27.50-P-1001-01A	Collar nut, output flange to output shaft	Nm	200

 Housing

Number	Designation			Trans-mission 722.9


BA27.40-P-1020-01A	Bolt, intermediate housing to transmission housing	Stage 1	Nm	10
		Stage 2	°	90

126 589 02 09 00

Wrench socket

Drift

140 589 12 15 00

Repair materials

Number	Designation	Order number
BR00.45-Z-1001-06A	Long-life grease	A 000 989 63 51 11

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