audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Renewing needle bearings (polygon bearings) for flange shaft (right-side) with bevel box installed > < Dismantling bevel box
Assembling bevel box
Assembling bevel box
  Note
Table of adjustments → Chapter.
   
Pressing in oil supply sleeves
–  Carefully press in until stop.
  Note
t  Installation position: end with marking faces press tool
t  Sleeves can also be driven in with press tool -VW 409- with the bevel box remaining assembled.
  N39-0778
Pressing roller bearing into final drive housing
–  Carefully press roller bearing into final drive housing onto stop using sleeve -V.A.G 30-21-
  Note
The marking faces towards press tool.
  N39-1083
–  Press large tapered roller bearing inner race onto bevel gear.
  N39-0780
–  Fit oil deflector plate with recess -arrow A- onto lug -arrow B- in large cover.
  Note
On some gearboxes shim S1 is fitted between oil deflector plate and large cover. If fitted, place shim at the same position when installing.
  N39-0815
–  Insert shim S1 into large cover and press in large tapered roller bearing outer race.
  N39-0781
–  Insert bevel gear with input shaft -1- into final drive housing.
–  Lubricate new O-ring with oil and fit onto large cover -2-.
  Note
The O-ring is not fitted on all gearboxes. On gearboxes without O-ring, apply sealant -AMV 188 200- evenly to sealing surface.
–  Fit cover and tighten bolts -3-, -4- and -5- diagonally and in stages to correct torque → Item.
  N39-1084
–  Turn bevel box in assembly stand by 180°.
–  Fit tapered roller bearing inner race -A- onto bevel gear with input shaft as far as stop.
–  Then place tapered roller bearing outer race -B- and shim S2-C- on top.
–  Fit a new O-ring -arrow- onto sealing surface of small cover -D-.
–  Insert small cover and tighten bolts -E- to torque → Item.
  N39-1085
–  Press in outer race for small tapered roller bearing into pinion housing.
Make sure that the lug -arrow- on pinion housing does not make contact with thrust plate -VW 402- when pressing in.
  N39-0783
–  Press large tapered roller bearing outer race into pinion housing.
–  Insert shaft bevel gear with shim S4 and inner race for large tapered roller bearing in final drive housing.
–  Apply sealant to both sides of shim S3 and to final drive housing.
  N39-0782
–  Install pinion housing -1- (apply sealant to bolts when fitting).
–  Insert small tapered roller bearing inner race for shaft bevel gear.
–  Drive in new oil seal for output flange as far as stop using thrust piece -T10049-.
–  Pack space between sealing lip and dust lip half-full with sealing grease -G 052 128 A1-.
–  Apply multi-purpose grease evenly to splines of output flange and shaft bevel gear.
  N39-1087
Drawing in output flange
A - Two-arm puller, e.g. -Kukko 20/10-
–  Attach hooks to underside of pinion housing.
–  Coat threads of new hexagon nut and shaft bevel gear with locking fluid -D 000 600-.
–  Install new hexagon nut for output flange and tighten to specified torque → Item.
  N39-1088
Socket -A- for 3/4" drive
  N39-1077
–  Drive in new oil seal for flange shaft (right-side) as far as stop.
–  Pack space between sealing lip and dust lip half-full with sealing grease -G 052 128 A1-.
  N39-1089
–  Carefully press in flange shaft (right-side) while turning.
–  Check whether it is still possible to turn flange shaft after pressing in.
–  If necessary, apply a blow with a plastic-headed hammer onto other end of flange shaft.
  N39-0816

Renewing needle bearings (polygon bearings) for flange shaft (right-side) with bevel box installed > < Dismantling bevel box