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Instruments and controls
Suspension
P
Suspension system
The bus is equipped with electronically controlled air
springs; ECS – Electronic Controlled Suspension.
Function of indicator lights on buses with ECS:
1. Light goes on when starter key is turned to driver posi-
tion. Once the engine has started, the suspension sys-
tem control unit will perform a test. During this time the
lamp will stay on. If no faults are detected (see point 4),
the lamp will go out after about two seconds.
2. The lamp will flash slowly if the pressure in the suspen-
sion system is too low.
3. The lamp will flash rapidly when the bus has not
reached the desired position (with respect to kneeling
and levelling), i.e. the bus is
moving towards the desired
end position or normal position. The lamp will flash at
the same rate if the bus is driven faster than 30 km/h in
high or low position (levelling control).
4. The lamp is also used to indicate faults and as a diagno-
sis lamp. If the diagnosis system detects a fault, the lamp
will light up and stay on. Read more about diagnosing
the suspension system in the chapter ”If anything hap-
pens”.
Crush risk!
The electronic suspension system operates only while
the engine is running. If the engine was stopped with
the bus raised, it will return to normal level when the
engine is restarted.
Warning!
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