Replacing Ear-Axle Bearing (Rear)

Information 

• The marking on the bearing housing always points to the rear in direction of travel  .

The following tools are required for removing and pressing in the bearing:

• > 9698/1 - Assembly fixture  , spindle and nut from > 9698 - assembly fixture 
• > 9698/2 - Pressure piece 
• > VAS 6178 - Hydraulic cylinder 
• > VAS 6179 - Foot pump 
• Optional:  > VAS 6179/1 - Pressure Gauge with Connection Line 

1. Spray bearing seat with anti-rust agent before pressing it out to make it easier to pull off the bearing.

   Allow anti-rust agent to work.

2. Mark the position of the recess -1-  on the rear axle housing -Pin-  .

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   Position of recess for rear bearing

   Information 

   The help of another person is required.

3. Press out rear bearing using the specified tools.

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   Tools for rear bearing

   1	Spindle with nut from > 9698 - assembly fixture
   2	Pressure piece 9698/1-6
   3	> 9698/2 - Pressure piece
   4	Sleeve 9698/1-1
   5	> VAS 6178 - Hydraulic cylinder
   6	Spacer (optional) for better securing of the spindle
   →	N-marking

   1. 3.1  Fit pressure piece 9698/1-6 -2-  at the top of the rear bearing with spindle -1-  and nut and centre it.
   2. 3.2  Position > 9698/2 - pressure piece-2-  at the bottom of the bearing and align it on the contact surface of the rear axle housing.

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      Pressure piece 9698/2 for rear bearing

   3. 3.3  Fit sleeve 9698/1-1 -2-  from below on pressure piece 9698/2 -1-  .

      Information 

      The help of another person is required.

   4. 3.4  Push > VAS 6178 - hydraulic cylinder  onto the spindle and secure with spacer and nut.
   5. 3.5  Press out rear bearing using > VAS 6178 - hydraulic cylinder  at setting 1.
4. Carefully de-burr edges -1-  of the recesses in the bearing seat.

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   Recesses for rear-axle bearing seat

   1. 4.1  Clean the bearing seat and polish it with fine sandpaper if necessary.
   2. 4.2  Lightly grease bearing seat with Kluber Syntheso Glep  .

      Press in rear bearing: 

5. Rear bearing -1-  :

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   Securing (rear) bearing

   1. 5.1  Align markings -Arrows-  .
   2. 5.2  Screw four pins 9698/1-9 -2-  into washer 9698/1-8 -3-  (position A).
   3. 5.3  Secure bearing -1-  in the tool.
6. Bearing position for pressing in the bearing (rear), markings on the bearing (rear) and on the rear axle housing must be aligned -Arrows-  .

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   Bearing position for pressing in

   1	Pressure piece 9698/1-7
   2	Rear bearing
   3	Pin 9698/1-9  (4 ea.)
   4	Washer 9698/1-8
   5	> VAS 6178 - Hydraulic cylinder

   Information 

   Overpressing the bearing can damage the rubber. The bearing must be replaced in this case.

7. Press in -2-  rear bearing.

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   Tool arrangement for rear bearing

   1	Pressure piece 9698/1-7
   2	Rear bearing
   3	Pin 9698/1-9  (4 ea.)
   4	Washer 9698/1-8
   5	> VAS 6178 - Hydraulic cylinder

   1. 7.1  Centre pressure piece 9698/1-7 -1-  with spindle and nut on the contact surface of the rear axle housing.
   2. 7.2  Centre bearing -2-  with fixing device (9698/1-9  pin -3-  with 9698/1-8  washer -4-  ) on the bearing seat.
   3. 7.3  Slowly press in rear bearing -2-  using > VAS 6178 - hydraulic cylinder-5-  at setting 1.
   4. 7.4  Press the rear bearing -1-  in as far as required until there is no gap between the rubber and the contact surface of the rear axle housing.

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      Press-in instructions