Iveco EuroCargo (12 to 26 t). Manual — part 82
OIL LEAKAGE FROM
OUTPUT SHAFT
Seal in output flange faulty or missing.
Fit a new seal.
13
YES
YES
YES
YES
Bolts of output flange loose.
Tighten output flange bolts.
NO
O-ring of flange retaining plate damaged or missing.
Replace flange retaining plate O-ring.
DIRTY OIL
Fluid and filters require changing.
Change fluid and filters.
YES
NO
See point 10.
YES
Overheating.
NO
Replace filter/seals.
YES
Fluid filters/seals damaged.
NO
Inferior quality fluid.
Use recommended fluid.
14
NO
176
ALLISON GEARBOX MD 3060P
E
URO
C
ARGO
T
ECTOR
12-26 t
Base - February 2003
ALLISON GEARBOX MD 3060P
177
E
URO
C
ARGO
T
ECTOR
12-26 t
TIGHTENING TORQUES
PART
TORQUE
Nm
(kgm)
Screws securing converter box to engine
49 to 58
(4.9 to 5.8)
Screws securing adapter - flexible plate
34
(3.4)
Hose fittings for gearbox-exchanger connection
54 to 68
(5.4 to 6.8)
Connection ring nut of external wiring to electric gearbox connector
2 to 3
(0.2 to 0.3)
Screws securing control module to gearbox
57 to 68
(5.7 to 6.8)
Oil filter covers screws
51 to 61
(5.1 to 6.1)
Oil drain plug
25 to 32
(2.5 to 3.2)
Turbine speed sensor securing screw
12 to 14
(1.2 to 1.4)
Engine revolution sensor securing screw
30 to 35
(3 to 3.5)
Output speed sensor securing screw
30 to 35
(3 to 3.5)
Suction filter cover securing screw
12 to 14
(1.2 to 1.4)
Screw securing valve bodies to control module
12 to 14
(1.2 to 1.4)
Screws connecting pressure switch to valve body
5 to 8
(0.5 to 0.8)
Electronic gearbox connector screws
5 to 7
(0.5 to 0.7)
Pressure plugs on gearbox bottom
10 to 13
(1 to 1.3)
Output flange screws
30 to 35
(3.0 to 3.5)
Vent
12 to 16
(1.2 to 1.6)
TOOLS
TOOL No.
DENOMINATION
99360322
Engine flywheel rotation tool
99370629
Gearbox bearing support during vehicle disconnection and
re-connection
99374013
Keying device for sealing ring assembly
DIAGRAM SHOWING CONNECTION BETWEEN TRANSMISSION AND ENGINE
1. Engine flywheel - 2. Spacer - 3. Crankshaft - 4. Connection plate - 5. Transmission - 6. Connection plate adapter -
7. Converter housing - 8. Coupling flange - 9. Flywheel housing.
Figure 5
52121
178
ALLISON GEARBOX MD 3060P
E
URO
C
ARGO
T
ECTOR
12-26 t
Base - February 2003
To replace turbine speed sensor (2), disassemble gearbox
control module complying with the previously described pro-
cedure.
Disconnect wiring from sensor (3).
Unscrew the two screws (1) connecting sensor to valve ca-
sings.
Install the new sensor by tightening screws (1) to a torque of
12 to 14 Nm.
Connect wiring (3) to sensor.
Assemble gearbox control module again according to the pre-
viously described procedure.
Disconnecting
52063
Position vehicle on a bridge.
Drain gearbox oil at operating temperature (71º
÷ 93ºC) re-
moving the drain plug (2) of the control module (1). After hav-
ing discharged the oil, re-assemble the plug (2) with a tighten-
ing torque equal to 25
÷ 32 Nm.
Disassemble oil filter covers (3) by unscrewing the 12 screws
securing the gearbox control module. Remove filters and ga-
skets.
Disconnect the electric connector connecting external wiring
to gearbox.
Hold gearbox control module with a proper hydraulic jack fit-
ted with a support (module weighs 25 kg.).
Unscrew all the screws securing the gearbox control module
to the main box.
By adequately operating, remove control module from gear-
box compartment.
Refitting
To assemble gearbox control module, properly reverse ope-
rations described at disconnecting.
Comply with torque shown in table on page 177.
At the end of assembly check whether oil drain plug is well
tightened, then introduce 28 litres of Tutela GI/A oil through
filling pipe.
REPLACING SPEED SENSORS
Replacing turbine speed sensor
52064
!
The below-described repair interventions deal only
with replacement of faulty components: for possible
diagnostics information pertaining there to, refer to
Section ”Electric/electronic system” of ”Allison auto-
matic gearboxes” Manual (printout No. 603.42.409).
Figure 6
Figure 7
ALLISON GEARBOX MD 3060P
179
E
URO
C
ARGO
T
ECTOR
12-26 t
DISCONNECTING AND CONNECTING
GEARBOX CONTROL MODULE AGAIN
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