Iveco EuroCargo (12 to 26 t). Manual — part 66
35431
PARTS COMPOSING GEARS DRIVE
1. Selection rod — 2. Shaft — 3. Synchronising rod — 4. Hub —
5. Screw — 6. 4
th
-5
th
fork — 7. 2
nd
-3
rd
fork — 8. 1
st
and re-
verse gear fork
5
4
6
3
2
1
8
7
Figure 75
INTERNAL DRIVE SHAFT ASSEMBLY
Arrange on a bench forks (6-7-8) and hub (4) according to the
position marked upon disassembling.
Place selection rod (1) so that the grooves are inserted into
forks and hub; repeat the operation with synchronisation rod
(3) and keeping them in position, insert shaft (2).
Screw the hub (4) screw (5) at the required torque.
Figure 76
Figure 77
Figure 78
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Secure the assembly in a vice, unscrew the four screws (1) and
disassemble valve (2) of epicyclic reduction gear drive.
33655
Tighten the shaft going out of the box in a clamp, remove plug
(1) and disassemble cover (2).
78166
Remove control box pin (2) and spring (1).
Do not mix removed elements with those of the anti-release
push rod.
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Figure 79
Figure 80
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Figure 81
Assemble sealing gasket (1) and bushes (2) into drive case (3)
with a suitable beater.
EXTERNAL DRIVE CASE ASSEMBLY
Figure 82
Figure 83
Figure 84
Extract, from the control box (3), sealing gasket (1) and bushes
(2) with a suitable beater.
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33660
Extract, from the control shaft (2), control selector (1) and
box (3).
33657
Unscrew screws (1) and disassemble cover (2).
33658
Unscrew screw (1) and remove spacer, upper cup (3) and
spring (2). Remove lower cup.
78167
Remove the snap ring (4) and use a punch tool (5) having the
right diameter to push the extraction washer (1) and remove
flexible plugs (2) and (3).
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GEARBOX 2870.9
Base - February 2003
Figure 85
Figure 86
Figure 87
Figure 88
33660
Tighten control shaft (2) in a clamp and assemble thereon box
(3) and control selector (1).
78168
Insert the extraction washer (1) and use a punch tool having
the right diameter to install the first plug (2). Install the second
plug (3) and the snap ring (4).
71880
Upon assembling, the drive shaft must be assembled
with the reference arrow (1) facing upwards.
!
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!
During installation, plug cuts shall be opposed by 180
°
(see detail A).
The bigger plug cut shall face the control selector (1)
milled area (see detail B).
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GEARBOX 2870.9
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Base - February 2003
33657
Clean joining surfaces of control box and cover (2) and apply
”LOCTITE 510” adhesive on one of the two components.
Assemble cover (2) and tighten screws (1) at a torque of 36.5
Nm (3.7 kgm).
Apply threading sealer LOCTITE 270 on the screws (1).
33658
Install the spring (2), the upper cap (3), the spacer and the
screw (1) and apply threading sealer LOCTITE 270 on the
screw itself.
Tighten the screw (1) to 30 Nm (3.1 kgm).
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Assemble lower cup (1).
Figure 89
Figure 90
Figure 91
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Figure 92
Figure 93
Install the pin (2), the spring (1) and apply sealer ”LOCTITE
518” (
→).
33655
Install the cover (2) and tighten the screws to 19 Nm (1.9
kgm).
Apply sealer ”LOCTITE 675” and refit the plug (1).
Figure 94
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Apply ”LOCTITE 518” sealant, mount epicyclic reduction gear
control valve (2), fasten screws (1) and tighten them to the
specified torque.
E
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12-26 t
112
GEARBOX 2870.9
Base - February 2003
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