1999 AUDI A4 01A Transmission Drive Pinion And Hollow Shaft Assembly Workshop Manual

Allocation Fig. 23
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pinion and hollow shaft, disassemblin
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35 -
Synchronizer ring for reverse gear
Checking for wear Fig. 17
36 -
Spring
Insert in reverse gear Fig. 16Application of spring to gear Parts
catalog
37 -
Reverse gear
38 -
Circlip
IdentificationAllocation Fig. 15
, item -7-
39 -
Tapered roller bearing inner race1)
Pressing off Fig. 9Pressing on Fig. 10
40 -
Bushing
To secure small tapered roller bearing
outer race Pulling out Fig. 6Does not need to be installed after small
tapered roller bearing has been replaced
Pa
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pinion and hollow shaft, disassemblin
g and assemblin
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35-29


41 -
Tapered roller bearing outer race1)
Pressing out Fig. 7Pressing in Fig. 8
42 -
Shim S4
List of adjustments Page 39
-37
43 -
Ring
Holds rubber washerApplication Parts catalog
44 -
Rubber washer
Compensates length variationsApplication Parts catalog
45 -
Transmission cover
Pa
ge 11 of 25 Drive
pinion and hollow shaft, disassemblin
g and assemblin
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35-30


When the bolt is tightened, the outer race will be pulled out of the
housing. Fig. 1 Pulling out double tapered roller bearing outer race
- Remove differential Page 39
-16
.
- Place pressure piece of 3128 bushing puller below outer race.
- Install threaded part of 3128 bushing puller using VW401 thrust plate
onto transmission housing.

Note:
When pressing off, the inner ring of the double tapered roller bearing is
damaged. Fig. 2 Pressing off double tapered roller bearing inner race
- Remove circlip before pressing off.
- Outer race -A- must be installed to press off inner race.
Pa
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pinion and hollow shaft, disassemblin
g and assemblin
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The smaller diameter of 3062 thrust pad faces outer race. Fig. 3 Pressing in double tapered roller bearing outer race

Fig. 4 Pressing on double tapered roller bearing inner race
Pa
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pinion and hollow shaft, disassemblin
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35-32


Fig. 5 Determining thickness of circlip
- Determine thickest circlip which can still just be installed and install it.
- Circlips for synchronizer hubs, needle bearings and individual gears
should be determined as for double tapered roller bearing shown.
Available circlips and part numbers Parts catalog

Fig. 6 Pulling out securing bushing for small tapered roller
bearing outer race
A - Puller 12-14.5 mm (0.472-0.570 in.), e.g. Kukko 21/1 puller
Pa
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pinion and hollow shaft, disassemblin
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The outer race is pressed out together with pressure plate (item - 43 -),
Page 35
-29
, shim S4 (item -42-) Page 35
-29
and the rubber washer
for compensating length variations (item 44 ), Page 35
-29
. Fig. 7 Pressing out tapered roller bearing outer race

Fig. 8 Pressing in tapered roller bearing outer race
Pa
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pinion and hollow shaft, disassemblin
g and assemblin
g
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Fig. 9 Pressing off tapered roller bearing inner race
- Press off inner race together with reverse gear.
A - Separating tool 22-115 mm (0.866-0.590 in.), e.g. Kukko 17/2
separating tool

Fig. 10 Pressing on tapered roller bearing inner race
- Install circlip before pressing on inner race.
Pa
ge 16 of 25 Drive
pinion and hollow shaft, disassemblin
g and assemblin
g
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