DISASSEMBLY AND REASSEMBLY




<Vehicles with rear drum brake>



Disassembly steps


1.
Snap ring
<<A>>

2.
Retainer
<<B>>

3.
Axle shaft


4.
Bearing case


5.
Backing plate
<<C>>

6.
Outer bearing inner race


7.
Hub bolt


8.
Inner bearing inner race


9.
Oil seal
<<D>>

10.
Bearing outer race



Reassembly steps

>>A<<
10.
Bearing outer race

>>B<<
9.
Oil seal

>>C<<
6.
Outer bearing inner race

>>C<<
8.
Inner bearing inner race


7.
Hub bolt


5.
Backing plate


4.
Bearing case


3.
Axle shaft

>>D<<
2.
Retainer

>>E<<
1.
Snap ring

<Vehicles with rear disc brake>



Disassembly steps


1.
Snap ring
<<A>>

2.
Retainer
<<B>>

3.
Axle shaft


4.
Bearing case


5.
Backing plate
<<C>>

6.
Outer bearing inner race


7.
Hub bolt


8.
Inner bearing inner race


9.
Oil seal
<<D>>

10.
Bearing outer race



Reassembly steps

>>A<<
10.
Bearing outer race

>>B<<
9.
Oil seal

>>C<<
6.
Outer bearing inner race

>>C<<
8.
Inner bearing inner race


7.
Hub bolt


5.
Backing plate


4.
Bearing case


3.
Axle shaft

>>D<<
2.
Retainer

>>E<<
1.
Snap ring

DISASSEMBLY SERVICE POINTS



<<A>> RETAINER REMOVAL



1.Remove one retainer bolt from the backing plate.

2.Apply gummed cloth tape around the edge of the bearing case for protection.
caution Be careful not to damage the bearing case and the axle shaft.
3.As shown in the figure, hold the axle shaft. Using a grinder, shave off a point of its circumference locally until the wall thickness become as follows:

  • 1.0 - 1.5 mm for axle shaft side
  • 2.0 mm for bearing side
caution Be careful not to damage the bearing case and the axle shaft.

4.Fix the axle shaft and shave off the remaining 2.0 mm on the side of the retainer bearing.
caution Be careful not to damage the axle shaft.

5.Cut in with a chisel the place where the retainer ring has been shaven and remove the retainer ring.

<<B>> AXLE SHAFT REMOVAL



1.Secure special tool axle shaft bearing case remover (MB991792) to the bearing case bolt with the nut.
The flange on the special tool should be parallel with the bearing case.If not, add washer(s) between them.
2.Drive out the axle shaft from the bearing case with a press as shown.

<<C>> OUTER BEARING INNER RACE REMOVAL



Install special tool rear axle shaft bearing remover (MB990560) as shown in the illustration, and then use a press to remove the outer bearing inner race from the axle shaft.

<<D>> BEARING OUTER RACE REMOVAL



Reinstall the outer bearing inner race that was removed previously. Use special tool ball joint remover and installer A (MB990799) and a press to remove the bearing outer race.

REASSEMBLY SERVICE POINTS



>>A<< BEARING OUTER RACE INSTALLATION



Use special tool rear suspension bushing base (MB990890 or MB990891) to press-fit the bearing outer race to the bearing case.

>>B<< OIL SEAL INSTALLATION


1.Set the outer bearing inner race.

2.Apply multipurpose grease to the lips of the oil seal.
Grease: Multipurpose grease SAE J310, NLG1 NO.2 or equivalent
3.Use the following special tools, press-fit the oil seal into the bearing case until it is flush with the face of the bearing case.

  • Installer adapter (MB990936)
  • Installer bar (MB990938)
4.Apply multipurpose grease to the lips of the oil seal.
Grease: Multipurpose grease SAE J310, NLG1 NO.2 or equivalent

>>C<< OUTER BEARING INNER RACE/INNER BEARING INNER RACE INSTALLATION



1.Apply multipurpose grease to the roller surface and ends of the bearing.
Grease: Multipurpose grease SAE J310, NLG1 NO.2 or equivalent
2.Pass the axle shaft through the bearing case and the inner bearing inner race and outer bearing inner race.
caution Both the inner bearing inner race and outer bearing inner race should be press-fitted together.
3.Use special tool ball joint remover and installer A (MB990799) to press-fit the inner bearing inner race and outer bearing inner race to the axle shaft.

>>D<< RETAINER INSTALLATION



1.Use special tool ball joint remover and installer A (MB990799) to press-fit the retainer with ABS rotor to the axle shaft. Check that the press-fitting force is at the standard value.
2.If the initial press-fitting force is less that the standard value, replace the axle shaft.
Standard value:
Initial press-fitting force N
29,400 or more
Final press-fitting force N
98,000 - 107,800

>>E<< SNAP RING INSTALLATION



1.After installing the snap ring, measure clearance (A) between the snap ring and the retainer with a feeler gauge. Check that it is within the standard value.
Standard value (A): 0 - 0.166 mm
2.If the clearance exceeds the standard value, change the snap ring so that the clearance is at the standard value.
Thickness of snap ring mm
Identification colour
2.17
-
2.01
Yellow
1.85
Blue
1.69
Purple
1.53
Red
Example:
Clearance 2.0 mm
Standard value 0 - 0.166 mm
Thickness of snap ring 1.85 mm