REMOVAL AND INSTALLATION

caution

The magnetic encoder collects metallic particles easily, because it is magnetized. Make sure that the magnetic encoder should not collect metallic particles. Check that there is not any trouble prior to reassembling it. <Vehicles with ABS>
When removing and installing the front wheel hub assembly, make sure that the magnetic encoder for wheel speed detection (integrated with the inner oil seal) does not contact with surrounding parts to avoid damage. <Vehicles with ABS>
When removing and installing the front wheel speed sensor, make sure that the pole piece at the end does not contact with surrounding parts to avoid damage. <Vehicles with ABS>
The parts indicated by * are the nuts with friction coefficient stabilizer. In removal, ensure there is no damage, clean dust and soiling from the bearing and thread surfaces, and tighten them to the specified torque.

Post-installation operation

Using your fingers, press the Ball Joint Dust Cover to check for a crack or damage.

			Removal steps
		1.	Cotter pin
<<A>>	>>A<<	2.	Driveshaft nut
	>>A<<	3.	Washer
		4.	Front wheel speed sensor (Refer to GROUP 35B - Wheel speed sensor ) <Vehicles with ABS>
		5.	Front wheel speed sensor harness clamp <Vehicles with ABS>
		6.	Brake hose bracket
<<B>>		7.	Brake caliper assembly
		8.	Brake disc
<<C>>		9.	Self-locking nut (tie-rod end connection)
		10.	Flange nut (lower arm ball joint connection)
<<D>>		11.	Driveshaft and hub knuckle assembly connection
		12.	Hub knuckle assembly

Required Special Tools:

MB990242: Puller Shaft
MB990244: Puller Bar
MB990767: Front Hub and Flange Yoke Holder
MB991354: Puller Body
MB991897 or MB992011: Ball Joint Remover

REMOVAL SERVICE POINTS

<<A>> DRIVESHAFT NUT REMOVAL

caution

Do not apply the vehicle weight on the front wheel hub assembly with the driveshaft nut loosened. Otherwise, the wheel bearing may be broken.

Use special tool MB990767 to counter the hub as shown in the figure to remove the driveshaft nut.

<<B>> BRAKE CALIPER ASSEMBLY REMOVAL

1.Remove the brake caliper assembly with brake hose.

2.Secure the removed brake caliper assembly with a wire or other similar material at a position where it will not interfere with the removal and installation of the hub knuckle assembly.

<<C>> SELF-LOCKING NUT (TIE-ROD END CONNECTION) REMOVAL

caution

Loosen the self-locking nut (tie-rod end connection) from the ball joint, but do not remove here. Use the special tool.
To prevent the special tool from dropping off, suspend it with a cord.

Install special tool MB991897 or MB992011 as shown in the figure.

2.Turn the bolt and knob to make the special tool jaws parallel, then hand-tighten the bolt. After tightening, check that the jaws are still parallel.

note

To adjust the special tool jaws to be parallel, set the orientation of the knob as shown in the figure.

3.Unscrew the bolt to disconnect the ball joint.

<<D>> DRIVESHAFT AND HUB KNUCKLE ASSEMBLY DISCONNECTION

caution

The magnetic encoder collects metallic particles easily, because it is magnetized. Make sure that the magnetic encoder does not collect metallic particles. <Vehicles with ABS>
When removing the driveshaft, make sure that it does not contact with the magnetic encoder (integrated with the inner oil seal) to avoid damage. <Vehicles with ABS>

If the driveshaft is seized, use special tools MB990242 and MB990244, MB991354 and MB990767 to push the driveshaft out from the hub.

INSTALLATION SERVICE POINT

>>A<< WASHER/DRIVESHAFT NUT INSTALLATION

caution

The magnetic encoder collects metallic particles easily, because it is magnetized. Make sure that the magnetic encoder should not collect metallic particles. Check that there is not any trouble prior to reassembling it.. <Vehicles with ABS>
When installing the driveshaft, make sure that it does not contact with the magnetic encoder (integrated with the inner oil seal) to avoid damage. <Vehicles with ABS>
Do not apply the vehicle weight on the wheel bearing before fully tightening the driveshaft nut. Otherwise, the wheel bearing may be broken.

1.Be sure to install the driveshaft washer in the illustrated direction.
2.Using special MB990767, tighten the driveshaft nut. At this time, tighten the nut to the specified lower limit torque so that the pin hole may align with cotter pin.
Tightening torque: 144 - 176 N·m (107 - 129 ft-lb)
3.If the pin hole does not align with the pin, tighten the driveshaft nut [less than 176 N·m (129 ft-lb)] and find the nearest hole, then fit the cotter pin.