Iveco Daily Euro 4. Manual — part 87
2
TRANSMISSION
D
AILY
E
URO
4
TRANSMISSION
3
D
AILY
E
URO
4
Main transmission operation faults:
1 - Noisy transmission
2 - Noisy transmission only in reverse speed
YES
YES
YES
Insufficient lubricating oil level.
Add TUTELA TRUCK GEARLITE oil up to
proper level.
3 - Gear spontaneous disengagement
4 - Difficult speed engagement or selection
5 - Leakages of lubricant.
NO
1
Screws which fasten the transmission to the chassis are
loose.
Tighten loose screws properly.
NO
Overhaul transmission and replace worn gears.
YES
NO
Gears, bearings, synchronizer rings and sliding sleeves
worn. Springs broken.
Replace worn or damaged components.
2
Excessive backlash between gears.
NOISY TRANSMISSION ONLY
IN REVERSE SPEED
Reverse speed or connected gears damaged.
Overhaul transmission.
YES
NOISY TRANSMISSION
4
TRANSMISSION
D
AILY
E
URO
4
YES
YES
YES
YES
YES
Speed engagement/selection rod release ball spring
yielded or broken.
GEAR SPONTANEOUS
DISENGAGEMENT
Remove the cap and replace the spring.
NO
3
Sliding sleeves positioning springs yielded or broken.
Remove the transmission and replace the springs.
Check the command or replace clutch.
NO
4
Wrong quality of oil in the box. Insufficient oil level.
Drain the oil and refill with TUTELA TRUCK
GEARLITE oil up to proper level.
Movement of sliding sleeves hindered. Forks, sliding
sleeves, synchronizer rings worn.
Disassemble the gearbox and look for the cause and
carry out repairs if necessary.
NO
DIFFICULT SPEED ENGAGEMENT
OR SELECTION
YES
Wrong assembly of levers on selection and/or gear
engagement levers.
Check and/or mount the levers as described under the
relevant heading.
NO
TRANSMISSION
5
D
AILY
E
URO
4
YES
YES
YES
Oil level too high.
Restore proper level
NO
5
Breather clogged
Clean breather
NO
Input and/or output shaft retaining rings worn.
Replace retaining rings.
Loose screws and/or nuts which fasten: covers,
support, boxes
Remove the component; clean coupling surfaces.
Spread on them some LOCTITE 5206 sealing, re-fit
and tighten screws and/or nuts to the prescribed
torque.
NO
LEAKAGES OF LUBRICANT
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