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Audi A4 Workshop Service and Auto Repair Manuals

Dismantling and assembling pinion shaft > < Pinion shaft and hollow shaft
Pinion shaft and hollow shaft - exploded view
   
Pinion shaft and hollow shaft - exploded view
Dismantling and assembling pinion shaft → Chapter
Dismantling and assembling hollow shaft → Chapter
  Note
t  Refer to technical data when installing new gears or final drive gear set → 6-speed manual gearbox 0A3, four-wheel drive; Rep. Gr.00.
t  Always renew the double angular contact ball bearing → Item when renewing the pinion shaft (final drive gear set) → Item.
t  Lubricate all needle bearings and synchro-rings with gear oil before installing.
t  When renewing synchro-rings, renew inner ring, intermediate ring and synchro-ring for the corresponding gear together.
t  If synchro-rings are not being renewed, make sure they are re-installed on the same gear. Do not interchange synchro-rings for reverse gear with synchro-rings for 1st and 2nd gear → Fig..
t  Items 22 to 29, 32 and 49 were modified on 1st and 2nd gear selector rod version with spring-loaded selector fork → Fig.. Refer to → Electronic parts catalogue “(ETKA)” to allocate components.
t  Adjustment work is required when renewing the parts marked with 1). Table of adjustments → Chapter.
1 - Gearbox housing 1)
2 - Shim “S3
q   Table of adjustments → Chapter
3 - Pinion shaft 1)
q   Is mated with crown wheel, always renew together as a set
q   Dismantling and assembling → Chapter
q   Adjusting crown wheel and pinion shaft → Chapter
4 - Needle bearing
q   Bearing for flange shaft in pinion shaft
q   Pulling out → Fig.
q   Driving in → Fig.
5 - Double angular contact ball bearing
q   If only this bearing is renewed, re-adjustment is not necessary
q   Pressing off → Fig.
q   Pressing on → Fig.
q   Installation position: shoulder on outer race faces towards pinion gear
6 - Shim “S5
q   To position tapered roller bearing inner race → Item
q   Re-determining thickness → Chapter
7 - Tapered roller bearing inner race
q   Pressing off → Fig.
q   Pressing on → Fig.
8 - Washer
9 - Circlip
q   Re-determining thickness → Fig.
10 - Needle bearing
q   For pinion shaft in hollow shaft
q   Lubricate with gear oil
11 - Shim “S4
q   Table of adjustments → Chapter
12 - Retaining plate
q   Installation position: machined side faces towards gearbox housing (can only be installed in one position).
13 - Bolt, 30 Nm
q   6 x
q   Apply locking fluid -AMV 185 101 A1- when fitting
14 - Hollow shaft
q   With 3rd and 4th gear wheels
q   Dismantling and assembling → Chapter
15 - 6th gear wheel
q   Pressing off → Fig.
q   Pressing on → Fig.
q   Installation position: high inside collar faces 5th gear wheel
16 - 5th gear wheel
q   Pressing off → Fig.
q   Pressing on → Fig.
q   Installation position: high inside collar faces towards 6th gear wheel
17 - Roller bearing
q   For hollow shaft
q   Do not interchange with roller bearing for input shaft
q   Pressing off with 5th gear wheel → Fig.
q   Pressing on → Fig.
18 - Bearing mounting
q   The roller bearing outer race → Item cannot be renewed individually; renew bearing mounting if signs of wear are found.
q   The roller bearing outer race must not have any radial clearance in the bearing mounting.
19 - Shim “S6
q   To position 2nd speed selector gear
q   Re-determining thickness → Chapter
20 - Needle bearing inner race
q   For 2nd speed selector gear
q   Pressing off with 5th gear wheel → Fig.
q   Pressing on → Fig.
21 - Needle bearing
q   For 2nd gear
22 - 2nd speed selector gear
23 - Inner ring for 2nd gear
q   Installation position → Fig.
q   Checking for wear → Fig.
q   Renew if scored or if there are visible traces of wear
24 - Intermediate ring for 2nd gear
q   Installation position → Fig.
q   Checking for wear → Fig.
25 - Synchro-ring for 2nd gear
q   Installation position → Fig.
q   Checking for wear → Fig.
q   Renew if scored or if there are visible traces of wear
26 - Locking collar with synchronising hub for 1st and 2nd gear
q   Removing and installing → Chapter
q   Assembling locking collar/synchronising hub → Anchor
27 - Synchro-ring for 1st gear
q   Installation position → Fig.
q   Checking for wear → Fig.
q   Renew if scored or if there are visible traces of wear
28 - Intermediate ring for 1st gear
q   Installation position → Fig.
q   Checking for wear → Fig.
29 - Inner ring for 1st gear
q   Installation position → Fig.
q   Checking for wear → Fig.
q   Renew if scored or if there are visible traces of wear
30 - Needle bearing inner race
q   For 1st speed selector gear
31 - Needle bearing
q   For 1st gear
32 - 1st speed selector gear
33 - Thrust washer
q   For 1st speed selector gear and reverse gear
34 - Reverse selector gear
q   With locking collar for reverse gear
q   Removing and installing → Chapter
q   Dismantling and assembling locking collar and reverse selector gear → Fig.
35 - Synchro-ring for reverse gear
q   Installation position → Fig.
q   Checking for wear → Fig.
q   Renew if scored or if there are visible traces of wear
36 - Intermediate ring for reverse gear
q   Installation position → Fig.
q   Checking for wear → Fig.
37 - Inner ring for reverse gear
q   Installation position → Fig.
q   Renew if scored or if there are visible traces of wear
38 - Needle bearing
q   For reverse selector gear
39 - Clutch unit
q   Removing and installing → Chapter
40 - Gearbox cover
41 - 12-point nut, 75 Nm
42 - Spacer ring
q   Secures 12-point nut → Item on hollow shaft to prevent it from working loose
43 - Tapered roller bearing outer race
q   Can be removed and installed by hand
44 - Tapered roller bearing inner race
q   Can be removed and installed by hand
45 - Washer
q   Note thickness
q   Re-determining thickness → Anchor
46 - Circlip
q   Note thickness
q   Re-determining thickness → Anchor
47 - Synchronising hub for 1st and 2nd gear
48 - Thrust block
q   Installing thrust blocks (3x) → Anchor
49 - Locking collar for 1st and 2nd gear
50 - Thrust block
q   Installing thrust blocks (3x) → Fig.
51 - Reverse selector gear
52 - Locking collar for reverse selector gear

   

Dismantling and assembling pinion shaft > < Pinion shaft and hollow shaft