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When the maximally permitted oil temperature is
approached the defined, the retarder’s performance
will be reduced or the retarder will be disabled by
the electronic control unit.
DANGER !
Risk of accident due to reduced braking power!
The retarder must be deactivated using the
“
Retarder ON/OFF
”
switch in the following
cases:
•
On city roads.
If an electronic braking system (EBS) and/or
antilock system (ABS) is available, manual retarder
shutdown is not required.
•
When the permitted oil temperature exceeds the
limitation.
Options for manually deactivating the retarder:
•
Set the "Retarder ON/OFF" switch to the OFF
position (if available)
•
Set hand lever to zero position (if available)
•
Depress pushbutton "N" on the pushbutton range
selector and thus engage transmission neutral
CAUTION: Only in emergencies on black ice if
there is no other option for switching off the retarder
available.
(10) Stopping, Parking
Stopping
The vehicle can be stopped at any time through
activation of the service brake, irrespective of the
position of the push-button range selector. In such a
case, the automatic electronic gear change unit will
engage the appropriate starting gear. Owing to the
propulsion of the converter, the vehicle may come
to a standstill on a slight grade even without
actuation of the brake.
•
Activate service or parking brake
In the event of a prolonged halt, the push-button
selector should be set to the neutral position.
DANGER!
If the brake is not activated, the vehicle may start
moving even without actuation of the accelerator
pedal.
Transmission with function “Automatic Idle Shift”
(AIS)
The automatic electronic gear change unit will set
the transmission to “Neutral” if the following
conditions prevail simultaneously:
•
Vehicle approaching standstill
•
Service or parking brake activated
•
Accelerator pedal in idling position
The range selected last on the push-button selector
will be retained. As soon as one of the three
conditions no longer prevails, the appropriate
starting gear will be engaged.
Parking
•
Activate the parking brake
•
Then depress push button “N” on the push-button
range selector
DANGER !
Before leaving the vehicle, always activate the
parking brake. When the engine is switched off,
there is no direct connection between engine and
axle. The vehicle can start to roll!
(11) Towing
Towing Vehicle with Coaxial Transmission
Transmission is Functioning
• Push-button range selector in Neutral position.
• Max. towing time: 2 hours.
• Max. towing speed:
Intercity and city buses: 25 km/h
Coaches: 35 km/h
NOTE
At an ambient temperature below -15°C, the
maximally permitted towing speed is 5 km/h.
Transmission Damage Suspected
CAUTION
If transmission damage is suspected, the propshaft
flange between transmission and drive shaft must be
disconnected.
Exception: In a dangerous situation, towing without
separation of the drive train is permitted until the
vehicle has left the danger area (e.g. intersection,
tunnel, etc.).
Towing Vehicle with Angle Drive Transmission
When a vehicle with angle drive transmission is
towed, the propshaft between transmission and
powered axle must always be disconnected.
