Iveco EuroCargo (12 to 26 t). Manual — part 51
GEARBOX 2865.6
E
URO
C
ARGO
T
ECTOR
12-26 t
45
Base - February 2003
Gearbox
2865.6
Page
DESCRIPTION
47
. . . . . . . . . . . . . . . . . . . . . . . . . .
SPECIFICATIONS AND DATA
49
. . . . . . . . . . . . .
TIGHTENING TORQUES
51
. . . . . . . . . . . . . . . . .
TOOLS
52
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GEARBOX 2865.5 DISENGAGEMENT/
RE-ENGAGEMENT
57
. . . . . . . . . . . . . . . . . . . .
-
Disengagement
57
. . . . . . . . . . . . . . . . . . . . . . . .
-
Re-engagement
57
. . . . . . . . . . . . . . . . . . . . . . . .
GEARBOX DISASSEMBLY
59
. . . . . . . . . . . . . . . . .
-
Rear cover sealing gasket replacement
62
. . . . . . .
-
Checks
63
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GEARBOX ASSEMBLY
63
. . . . . . . . . . . . . . . . . . . .
-
Bearings pre-loading adjustment for secondary
shaft
64
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PRIMARY SHAFT DISASSEMBLY
68
. . . . . . . . . . . .
PRIMARY SHAFT ASSEMBLY
71
. . . . . . . . . . . . . . .
MOTION ENTRY SHAFT DISASSEMBLY
73
. . . . .
MOTION ENTRY SHAFT ASSEMBLY
74
. . . . . . . .
SECONDARY SHAFT DISASSEMBLY
74
. . . . . . . .
SECONDARY SHAFT ASSEMBLY
74
. . . . . . . . . . .
INTERNAL CONTROL SHAFT
DISASSEMBLY
75
. . . . . . . . . . . . . . . . . . . . . . . .
INTERNAL CONTROL SHAFT ASSEMBLY
75
. . . .
EXTERNAL CONTROL BOX DISASSEMBLY
75
. .
EXTERNAL CONTROL BOX ASSEMBLY
76
. . . . .
-
Idle-R.M. switch adjustment
78
. . . . . . . . . . . . . . .
Figure 1
The IVECO 2865.6 gearbox is of the mechanical type with 1
st
,
2
nd
gear engagement through a double-cone synchronising
ring and 3
rd
, 4
th
, 5
th
and 6
th
gear engagement with free-ring
synchronising rings. The reverse motion engagement is with
a quick-connection sliding sleeve.
The gearbox case is made of light alloy and is composed of a
front half-case and a rear half-case.
Three openings are obtained in the rear half-case for the
possible application of a power takeoff.
Motion transmission is realised through a series of gears,
always meshed and with helical teeth.
The gears are keyed or obtained on four shafts: motion entry,
primary, secondary and reverse motion shafts.
The gear obtained on the motion entry shaft and those keyed
on primary and reverse motion shafts idly rotate on cylindrical
roller cages.
Motion entry shaft and primary shaft are supported by ball
bearings in the gearbox case.
The secondary shaft is front and rear supported by
tapered-roller bearings that are axially adjustable through an
adjustment ring.
The gears engagement and selection control is mechanical.
IVECO 2865.6 GEARBOX ASSEMBLY
79436
GEARBOX 2865.6
E
URO
C
ARGO
T
ECTOR
12-26 t
47
Base - February 2003
Figure 2
LONGITUDINAL SECTION OF 2865.6 GEARSHIFT AND SECTION ON THE REVERSE GEAR SHAFT
78719
Sec. A-A
GEARBOX 2865.6
E
URO
C
ARGO
T
ECTOR
12-26 t
48
Base - February 2003
GEARBOX 2865.6
E
URO
C
ARGO
T
ECTOR
12-26 t
49
Base - February 2003
GEARBOX
2865.6
Type
Mechanical
Gears
6 forward gears and reverse gear
Gears engagement control
Mechanical
Power takeoff
Upon request
Gears engagement:
1
st
— 2
nd
Double-cone synchronizer
3
rd
— 4
th
— 5
th
— 6
th
Free-ring synchronizer
Reverse gear
Quick-connection type
Gears anti-disengagement
Sliding sleeve holding through rollers and
springs.
Gears
With helical teeth
Gear ratio
First
1 : 9.007
Second
1 : 5.015
Third
1 : 3.206
Fourth
1 : 2.066
Fifth
1 : 1.370
Sixth
1 : 1.000
Reverse gear
1 : 8.170
Oil type
Amount
TUTELA ZC 90
8.1 Kg. (9 lt)
Fixed hubs assembly temperature
100
o
C to 130
o
C
Secondary shaft bearings
With tapered rollers
Secondary shaft bearings pre-loading
adjustment
By means of rings
Secondary shaft pre-loading adjustment rings
thickness
mm
4.0-4.1-4.2-4.3-4.4-4.5-4.6
4.7-4.8-4.9-5.0-5.1-5.2-5.3
Supplied in a kit
Secondary shaft bearingsassembly
temperature
85
o
C
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