Iveco EuroCargo (12 to 26 t). Manual — part 68
71926
Figure 109
Figure 110
Figure 111
Figure 112
71924
Extract sealing gasket (4) from cover (2), unscrew screws (1)
and disassemble cover (2) and support (3).
71923
Through a suitable wrench (1), unscrew screws (2) and
remove check washers (3).
Withdraw synchronising ring (1), reaction ring (2) and recover
the spacer ring below.
Check that ball bearing (2), when rotating along the two
directions, does not show roughness or noise when sliding.
In case of a replacement of the bearing itself, slightly heat
support (1) seat before disassembling it.
71925
Check that all parts composing the epicyclic reduction gear
assembly do not shown traces of excessive wear, seizures or
breakages.
Replace the affected parts.
Checks
!
Upon assembling, the following must always be
replaced: rings, sealing gaskets and springs for sliding
sleeves positioning rollers.
E
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ARGO
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ECTOR
12-26 t
GEARBOX 2870.9
117
Base - February 2003
71931
71930
Figure 113
Figure 114
Figure 115
Figure 116
Turn planetary gear-holder shaft (1) over, assemble
synchronising rings (2) and arrange elastic check ring (4).
71928
By using grease, pre-assemble rollers (4), shims (2) and
shoulder rings (1) into planetary gear (3).
71927
Assemble complete planetary gear (1) into planetary
gear-holder shaft (2) and key-in pin (3).
Settle pin (1) on planetary gear-holder shaft (2) by using a
plastic hammer.
By using a punch (2), assemble elastic peg (2) checking pin (3).
71932
Figure 117
Through a feeler gauge (1), check the clearance between the
two synchronising rings (2) and (3) that must be included
between 0.5 and 1.9 mm. Otherwise, replace the
synchronising rings.
Figure 118
71929
E
URO
C
ARGO
T
ECTOR
12-26 t
118
GEARBOX 2870.9
Base - February 2003
71936
71935
Figure 119
Figure 120
Figure 121
Figure 122
Key-in synchronising ring (1).
71933
35523
Assemble hub (1) on planetary gear-holder shaft and arrange
elastic check ring (2).
Arrange springs, pins and rollers (1), apart from the central
ones (
→), into the hub.
Key-in the crown, by placing it in a neutral position with marks
(1) next to the seats without rollers. Arrange the three central
rollers (2) and with a punch (3) push them into their seats.
71937
Figure 123
Insert spacer ring (1) into its seat in case (2).
Figure 124
71934
Key-in sliding sleeve (1) completed with check ring (2) on
crown (3), then, by compressing ring (2), push sliding ring (1)
into the crown till the check ring is hooked into its own seat.
E
URO
C
ARGO
T
ECTOR
12-26 t
GEARBOX 2870.9
119
Base - February 2003
71941
71940
Figure 125
Figure 126
Figure 127
Figure 128
Assemble support (1) completed with ball bearing (2).
Apply LOCTITE 510 sealant on contact surface (
→) between
support and cover.
71938
71925
Assemble check washers (2), screw screws (1) and tighten
them at the required torque.
Place control fork (1) completed with rod as shown in the
figure.
Key-in box (2) on planetary gear-holder shaft (1) and on rod
for control fork (3). Key-in phonic wheel (4) on planetary
gear-holder shaft (1).
Apply LOCTITE 510 sealant on contact surface (
→) between
case (2) and support.
Figure 129
71939
Assemble synchronising ring (1) and reaction ring (2).
E
URO
C
ARGO
T
ECTOR
12-26 t
120
GEARBOX 2870.9
Base - February 2003
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