Iveco Stralis AT/AD. Manual - part 172
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Figure 95
Figure 96
Figure 97
Figure 98
Lubricate taper roller bearings (1) and fit outer races.
Screw in adjustment ring nuts (2).
Adjusting the cap gap
Adjusting and checking retraction of the caps can be done with
two methods:
1
st
METHOD
1.
Use wrench 99355025 (3, Figure 97) to tighten the
adjustment lock rings (4) of the bearings until eliminating
the pinion-crown wheel clearance and end float. At the
same time check that the crown wheel does not force on
the pinion;
2.
using a suitable micrometer positioned diagonally and
centrally in points (X-Y-arrows, Figure 97);
measure and note the distance of the caps;
3.
further tighten the two adjustment lock rings (4,
Figure 97) to obtain a retraction of the caps (2, Figure 97),
measured on Axis X or on axis Y as described in point ”2”
of: 0.15 to 0.33 mm which corresponds to a preload on
the bearings of 1.7 to 3.9 Nm (0.17 to 0.39 kgm).
2
nd
METHOD
A. Diagonally and centrally on the outer machined seats of
both caps (2, Figure 97) position two dial gauges (1) with
magnetic base as shown in Figure 97;
B.
proceed as described in point ”1”;
C. after eliminating the end float further tighten the two
adjustment lock rings (4) to obtain a retraction of the caps
(2) of 0.15 to 0.33 mm, which corresponds to the sum of
the readings on the dial gauges (1).
Adjust the axial clearance between the teeth of the pinion -
crown wheel unit which must be 0.25 to 0.50 mm proceeding
as follows:
- stop the bevel pinion from turning using tool 99370317;
- position the magnetic-based dial gauge (1) as illustrated;
- using wrench 99355025 (3) slacken the adjustment lock
ring on the crown wheel side and tighten, to the same
extent, the adjustment lock ring (2) of the opposite side.
The purpose of this is to leave the previously-adjusted cap
retraction unchanged;
- proceed as described until obtaining the specified
clearance.
The clearance should be checked on 4 points the same
distance apart.
138
AXLES IN TANDEM MERITOR RP 160 E (R 2478) (INTERMEDIATE)
S
TRALIS
AT/AD