Iveco Stralis AT/AD. Manual — part 111
Incorrect fluid level.
Adjust fluid level.
YES
NO
Replace speed sensors.
YES
Speed sensors faulty.
THE GEARBOX DOES NOT INSERT A
SPECIFIC SELECTION
4
YES
Fluid temperature sensor faulty.
Replace fluid temperature sensor.
NO
5
Engine idle speed too high.
Adjust engine idle speed to between 500 and 800 rpm.
YES
NO
THE GEARBOX DOES NOT CORRECTLY
PERFORM THE
SELECTIONS
Replace speed sensors.
YES
Speed sensors faulty.
(To be continued)
NO
Tighten speed sensor mounting bolts.
YES
Speed sensors loose.
182
GEARBOXES ALLISON MD 3060 PR ALLISON MD 3066 PR
S
TRALIS
AT/AD
Base - January 2003
Adjust fluid level.
YES
Incorrect fluid level.
NO
Overhaul valve block. Replace defective valves.
YES
Solenoid valves stuck or blocked.
YES
NO RESPONSE FROM
GEAR SELECTOR
6
Incorrect fluid level.
Adjust fluid level.
NO
See point 8.
YES
Line pressure low.
NO
Overhaul valve block. Replace defective valves.
YES
Solenoid valves stuck or blocked.
GEARBOXES ALLISON MD 3060 PR ALLISON 3066 MD PR
183
S
TRALIS
AT/AD
YES
7
CLUTCH SLIP AND VIBRATION
IN ALL RANGES
Replace the speed sensors.
YES
Incorrect signals from speed sensors.
NO
Adjust fluid level.
YES
Incorrect fluid level.
NO
Line pressure low.
See point 8.
Incorrect fluid level.
Adjust fluid level.
NO
Replace filter.
YES
Line filter clogged.
NO
Clean or replace intake filter.
YES
Intake filter blocked or faulty.
LOW LINE PRESSURE IN ALL
RANGES
8
NO
Replace seals. Tighten any loose screws.
YES
Leaks from control module.
YES
184
GEARBOXES ALLISON MD 3060 PR ALLISON MD 3066 PR
S
TRALIS
AT/AD
Base - January 2003
Incorrect fluid level.
Adjust fluid level.
YES
NO
Replace filter.
YES
Lubrication filter clogged.
LOW LUBRICATION PRESSURE
9
Air in fluid. Incorrect fluid level.
Adjust fluid level.
YES
NO
Replace temperature sensor.
YES
Temperature sensor inaccurate.
OVERHEATING IN ALL RANGES
10
Dipstick cap loose or worn.
Tighten dipstick cap.
Replace dipstick if necessary.
YES
NO
Drain off fluid to obtain correct level.
YES
Fluid level too high.
SOME OIL EMERGES FROM FILLING
PIPE AND/OR EXHAUST
11
(To be continued)
GEARBOXES ALLISON MD 3060 PR ALLISON 3066 MD PR
185
S
TRALIS
AT/AD
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