Iveco Stralis AT/AD. Manual — part 98
45946
70837
70836
70838
70839
70840
Figure 15
Figure 16
Figure 17
Figure 18
Figure 19
Figure 20
Using a press, extract the spider shaft (1) from the supporting
roller bearing (2). Turn the rear box (3) upside-down and
extract the roller bearing (2).
Removing the epicyclic reduction gear train
(E.R.G.)
Using a screwdriver, remove the circlip (3) fastening the ring
gear with internal toothing (4) to the ring gear with external
toothing (2) and remove them from the E.R.G. (1).
Extract the toothed ring (2) from the ring gear with internal
toothing (1).
Using pliers (2), tighten the ends of the circlip (3) and remove
the coupling body (4) from the E.R.G. shaft (1).
Using a punch, extract the pins (5) from the spider shaft (6).
Remove the planetary gears (3) from the spider shaft (6),
together with the rollers (2) and shim adjustment rings (1 and
4).
Extract the toothed shaft (3) from the spider shaft (1) together
with the rings (2).
128
GEARBOX EuroTronic 12 AS 2301 D.D./O.D.
S
TRALIS
AT/AD
Base - January 2003
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70843
70842
Figure 21
Figure 22
Extract one of the pins (1) from the toothed shaft (2) and
extract the rings (3) from this.
Using a suitable extractor, remove the roller bearing ring (1)
from the spider shaft (2).
Using a punch, extract the disc (3) from the inside of the spider
shaft (2).
PARTS COMPRISING THE E.R.G.
1. Circlip - 2. Ring gear with external toothing - 3. Toothed ring - 4. Ring gear with internal toothing - 5. Bearing - 6. Circlip - 7.
Circlip - 8. Coupling body - 9. Pins - 10. Ring - 11. Toothed spindle - 12. Disc - 13. Spider shaft - 14. Pin - 15. Shim adjustment
ring - 16. Rollers - 17. Shim adjustment ring - 18. Planetary gear.
Figure 23
GEARBOX EuroTronic 12 AS 2301 D.D./O.D.
129
S
TRALIS
AT/AD
70844
70840
70845
70982
70838
70983
Figure 24
Figure 25
Figure 26
Figure 27
Figure 28
Figure 29
Heat the inside ring (2) of the roller bearing to 120
°C and fit
it on the spider shaft (3).
Fit on the circlip (1). Fit on the disc (4).
Drive the rings (1 and 3) onto the toothed spindle (2) and fit
on the pin (4).
Insert the spindle (3) together with the rings (2) onto the
spider shaft (1).
Smear grease into the hole of the planetary gear (5) and insert
the rollers (3) with the associated shim adjustment rings (2 and
4). Fit the planetary gears (5) onto the spider shaft (6),
fastening them to it with the pins (1).
Using pliers (2), tighten the ends of the circlip (3) and fit the
coupling body (4) onto the E.R.G. shaft (1).
Fit the ring gear with internal toothing (5) onto the spider shaft
(3) together with the toothed ring (4), and the ring gear with
external toothing (2) and fasten the two ring gears with the
circlip (1).
130
GEARBOX EuroTronic 12 AS 2301 D.D./O.D.
S
TRALIS
AT/AD
Base - January 2003
45951
45943
70847
Figure 30
Figure 31
Figure 32
Heat the seat of the bearing (1) of the rear box (2) to 120
°C
and mount the bearing (1).
Rest the spider shaft (1) on an appropriate spacer.
Heat the inside ring of the bearing (2) to 120
°C and drive it
together with the rear box (3) onto the spider shaft (1).
Determine the ball bearing end float adjustment thickness (3)
by proceeding as follows:
- measure the depth of the seat on the cover (1) of the
bearing (3), distance A;
- measure the protrusion of the bearing (3) from the
surface of the rear box (2), distance B.
The thickness S of the adjustment ring is determined by the
following equation:
S = (A - B) - C
Where:
A and B =
measurements
C
=
end float 0
÷0.1 mm
For example:
A
=
5.4 mm
B
=
5 mm
C
=
0
÷0.1 mm
S
=
(5.4 - 5) - (0
÷0.1 mm) = 0.3 ÷ 0.4 mm
GEARBOX EuroTronic 12 AS 2301 D.D./O.D.
131
S
TRALIS
AT/AD
Adjusting epicyclic reduction gear train bearing
end float
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