Volvo Truck 2003-05

Pinion Seal

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Removal & Installation



  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Remove or disconnect the following:
    NOTE
    There are two parts to the pinion seal. Use extractor 999 7023 with care. The bolt and inner socket in the extractor must be unscrewed when tapping on the extractor to remove pinion seal.



    The exhaust system
     
    The driveshaft
     
    The Active on Demand Coupling (AOC)
     



    Click image to see an enlarged view

    Fig. Using extractor 999 7023 to remove pinion seal

    Using extractor 999 7023 to remove pinion seal
  4.  
  5. Tap extractor tool 999 7023 onto the seal so that the flat end is against the seal.
  6.  
  7. Tighten the inner socket of tool 999 7023. Counter hold the outer part at the same time so that the tool expands against the seal.
  8.  
  9. Remove the seal using the screw in the extractor.
    NOTE
    Check that no seal residue is left in the final drive. If the inner section of the seal remains in place, tap in the extractor again and pull out the inner section. Do not hammer on the extractor too hard. This can cause damage in the extractor, which in turn can scratch the mating surface on the pinion shaft.

  10.  
  11. Remove the pinion seal.
  12.  

To install:


NOTE
The seal consists of two sections but is installed as one unit.

  1. Lubricate the edge of the seal.
  2.  
  3. Use drift 999 7024 for installation. Position the section of the seal with the largest outer diameter against the drift.
  4.  
  5. Tap in the seal until the head of the drift is against the final drive housing.

    Click image to see an enlarged view

    Fig. Using drift 999 7024 to install pinion seal

    Using drift 999 7024 to install pinion seal
  6.  
  7. Install or connect the following:

    The Active on Demand Coupling (AOC)
     
    The driveshaft
     
    The exhaust system
     

  8.  
  9. Refill the oil in the final drive and AOC
  10.  

 
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