31 60... Pressing output shaft out of drive flange (wheel hub) and drawing in

Special tools required:

Hydraulic unit - 81 64 2 155 744
Adapter kit 1 - 81 64 2 155 745
Adapter kit 2 - 81 64 2 155 746

Fig 1: Pressing Output Shaft From Drive Flange Using Special Tools

Courtesy of BMW OF NORTH AMERICA, INC.

The following tools are required to press out the output shaft from the drive flange, see graphic for arrangement:

Vehicle Components

I	Drive flange hub
II	Wheel bearing / swivel bearing

Necessary Components

1	Hydraulic unit
E3	Washer M24
F3	Spindle M24 (length 270 mm)
C1	Holding sleeve
K2	Screws M14 x 1.5
B1	Adapter

Secure output shaft against falling out

Press out output shaft with hydraulic unit

The following work steps describe drawing in the output shaft:

Fig 2: Installing Output Shaft From Drive Flange Using Special Tools

Courtesy of BMW OF NORTH AMERICA, INC.

Vehicle Components

I	Drive flange hub
II	Wheel carrier/swivel bearing
III	Output shaft

Required Components For All Models And Types

1	Hydraulic unit
E1	Holding sleeveM24
D1	Washer
F2	Spindle M24 / M20 (length 335 mm)

Components Specific To Model And Type (Thread Diameter, Output Shaft)

G1	Adapter M22 x 1.5 to M20
G2	Adapter M24 x 1.5 to M20
G3	Adapter M27 x 1.5 to M20

Fig 3: Drawing In Output Shaft

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Risk of damage!

Due to the technical requirements, the special tool used, sleeve G,* is relatively thin-walled. To ensure that the load limit of the tensioning sleeve is not exceeded when drawing in the output shaft, it is essential to use adapter 81 64 2 318 661 in combination with a torque wrench.

Fit adapter with torque wrench to hydraulic unit

Set torque wrench to 20 Nm.

Draw in output shaft with hydraulic tool until the torque wrench is activated.