39-169
Adjusting backlash
(Positioning ring gear in final drive housing)
Drive pinion with shim "S3" installed
Differential with shims "S1*" + "S2*" installed
- Insert differential in final drive housing, install
cover and tighten all bolts to 25 Nm.
- Turn differential 5 turns in both directions to
settle tapered roller bearings.
- Assemble measuring equipment.
Use dial gauge extension VW 382/10 (6 mm flat).
- Set measuring lever VW 388 to dimension "a" = 60 mm.
- Determine play between teeth flanks as follows:
- Turn ring gear until it makes contact with a tooth flank (end of
backlash travel).
- Set dial gauge to "0" with 1 mm preload.
Pa
ge 32 of 38 Drive
pinion and rin
g gear, ad
justin
g
11/19/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.TM03.39.19
39-173
Performing check measurement
Note:
Drive pinion with shim "S3" installed Differential with shims "S1" + "S2" installed
- Turn differential 5 turns in both directions so that tapered roller
bearings settle.
- Measure backlash four times on circumference.
Specifications: 0.12-0.22 mm
If the backlash lies outside the tolerances, the adjustments must be
repeated, but the total shim thickness "S
total
" must remain unchanged.
The individual measurements must not differ by more than 0.06 mm
from each other.
Pa
ge 38 of 38 Drive
pinion and rin
g gear, ad
justin
g
11/19/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.TM03.39.19
