Iveco EuroCargo (12 to 26 t). Manual — part 49
33634
33636
33635
Figure 66
Figure 67
Figure 68
Assemble roller bearing and 1
st
speed gear (1).
Heat at a temperature of 100
°C ÷ 130 °C fixed hub (2) for
reverse gear and assemble it on primary shaft (1); asemble
elastic ring (3).
Assemble roller bearing and reverse gear (1).
Assemble coupling body (2) and synchronising ring (3). Heat
fixed hub (1) at a temperature of 100
°C ÷ 130 °C and
assemble it on shaft (4) paying attention that synchronising ring
tangential stops are inserted into respective hub seats.
33637
33638
33639
Figure 69
Figure 70
Figure 71
Assemble shoulder ring (2).
Slightly heat ball bearing rolling half-race (3) and assemble it
on primary shaft (1).
Turn the shaft over in a clamp, assemble roller bearing and 3
rd
speed gear (1).
E
URO
C
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ECTOR
12-26 t
36
GEARBOX 2855.6
Base - February 2003
33640
33641
33642
Figure 72
Figure 73
Figure 74
Assemble sliding sleeve (2) for 3
rd
and 4
th
speed gears, springs
and rollers into fixed hub seats. Assemble synchronising ring
(3) and coupling body (1) for 4th speed gear.
Assemble roller bearing and 4
th
speed gear (2). Heat bush (3)
at a temperature of 100
°C ÷ 130 °C, and assemble it on
primary shaft (4). Assemble elastic ring (1).
Assemble roller bearing, 5
th
speed gear (2), coupling body (1)
and synchronising ring (3) for 5
th
speed gear.
Heat the fixed hub (2) for 5th and 6th speed gears at a
temperature of 100
°C ÷ 130 °C and install it on the primary
shaft with the chamfer heading towards the 5
th
speed gear.
When keying the hub pay attention that synchronising ring
tangential stops are inserted into respective hub seats.
Assemble elastic ring (1) with a suitable thickness so that the
fixed hub has no axial clearance (max allowed 0.03 mm).
33643
33644
Figure 75
Figure 76
Assemble sliding sleeve (2) for 5
th
and 6
th
speed gears, springs
and rollers. Assemble synchronising ring (3) and coupling body
(1) for 6
th
speed gear.
E
URO
C
ARGO
T
ECTOR
12-26 t
GEARBOX 2855.6
37
Base - February 2003
71869
71871
71870
Figure 77
Figure 78
Figure 79
Remove elastic ring (2) and adjustment ring (1).
Abut bearing (1) on a vice, as shown in the figure, and by
beating on shaft (2), extract it from the bearing itself.
PARTS COMPOSING THE MOTION INLET SHAFT
1. Motion inlet shaft - 2. Elastic ring - 3. Adjustment ring - 4.
Ball bearing - 5. Cylindric roller bearing.
MOTION INLET SHAFT ASSEMBLY
71872
62455
Figure 80
Figure 81
Assemble ball bearing (1) on motion inlet shaft (2) and carry
out its adjustment.
- Assemble bearing on motion inlet shaft.
- Measure dimension ”A”.
- Measure seeger ”B” thickness.
- Define spacer ring thickness to be inserted, by defect:
C = A- B.
Motion inlet shaft bearing adjustment spacer ring
thicknesses: mm 2.40 - 2.45 - 2.50 - 2.55 - 2.60 - 2.65
- 2.70 - 2.75 - 2.80.
Motion inlet shaft bearing adjustment
MOTION INLET SHAFT DISASSEMBLY
E
URO
C
ARGO
T
ECTOR
12-26 t
38
GEARBOX 2855.6
Base - February 2003
71869
33651
Figure 82
Figure 83
Assemble adjustment ring (1) whose thickness is equal to the
previously-obtained one and assemble elastic ring (2).
Remove elastic ring (1) from secondary shaft (3), extract bevel
roller bearings (2 and 4) with a suitable punch (destructive
operation).
Slightly heat bevel roller bearings (2 and 4, Figure 83)
and assemble them on secondary shaft (3,
Figure 83). Assemble elastic ring (1, Figure 83).
SECONDARY SHAFT DISASSEMBLY
SECONDARY SHAFT ASSEMBLY
Place on a bench forks (4) and hub (2) according to the
position marked upon disassembling. Place the two rods (3)
inside fork holes and insert drive shaft (1). Tighten hub screw
(2) at the required torque.
71873
71874
Figure 84
Figure 85
Mark fork (3) assembling position. Unscrew screw (4) and
withdraw all forks (3) together with fork positioning rods (2)
and hub (1).
INTERNAL DRIVE SHAFY ASSEMBLY
E
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C
ARGO
T
ECTOR
12-26 t
GEARBOX 2855.6
39
Base - February 2003
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