719
Model Code Page
42. Gearbox
1. 1. 1995
6000--8750 423 15
8. 11. 1990
F. Fitting differential
1. Fit the differential RH side bearing onto the differential hou-
sing (if removed) (use tool ETV 893400). Place the differential
case into the gearbox housing right side first.
2. Support the differential to the height of the bearing holes
andfittheRHsidebearingouterraceandthebearingflange
together with the threaded adjusting flange according to the
marks. Fit then a wooden wedge so that it presses the diffe-
rential to the right against the RH side bearing.
2466
ETV 893400
3. Fit the LH side bearing with tool ETV 893400.
4. Fit the bearing outer race.
Note! Tap the outer race as deep as possible for good cent-
ring.
2467
5. Fit the LH side bearing flange/adjusting flange according
to the marks.
Note! The adjusting flange can be tightened with a piece of
flat iron and with an adjustable spanner as sho wn in figure
above.
6. Adjust the backlash between the crown wheel and the
pinion by moving the differential sideways by means of the
adjusting flanges. Ensure that there is no play in the bearings
during the adjustment by turning both nuts equally in the
same direction.
2
68
0,175 ---0,325
7. Measurethe tooth backlash with a dial gauge with thestylus
at right angles tothe side of the tooth. The backlash should be
0,175 ---0,325 mm.
Note! Try to adjust the backlash to the middle of the tolerance
range or preferably near the min. value.
2456
Nm
8. When the backlash is correct, tighten carefully the RH side
adjusting flange until the differentialbearing rol ling resistance
is correct. The rolling resistance is measured at the front end
of the bevel pinion shaft. Thus the correct value is the bevel
pinion shaft rolling resistance +:
+ 0 , 6 --- 1 , 7 N m (Z7/40, Z8/42) or
+ 0 , 8 --- 2 , 2 N m (Z9/38) or
+ 1 , 0 --- 2 , 8 N m (Z11/37)
In parentheses there is given the number of teeth of the
pinion/crown wheel. Concerning different gearboxes, see
pages 420/2 and 420/2A.
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