Mercedes-Benz Actros 2017, Operating Instructions Manual

Page: 260 / 436

i If you do not pull away immediately after
pressing the button, the indicator lamp in the
í
button lights up again. Crawler mode
then remains deactivated.
X
To deactivate: press the lower section of the
í
button again.
The indicator lamp in the
í
button lights
up.
Crawler mode is deactivated automatically if
you:
R
select a gear above the permissible pulling-
away gears
R
shift the transmission to neutral position
R
apply the parking brake
R
activate the rocking-free drive function
Rocking-free
General notes
! If the gross tractor/trailer combination
weight is very high, the dry clutch may be
overloaded and damaged.
You can use the rocking-free drive function in all
permissible pulling-away gears to rock the vehi-
cle out of a depression in the terrain. Transmis-
sion control switches to the manual drive pro-
gram automatically once the rocking-free drive
function has been activated. If you release the
accelerator pedal when rocking free, the dry
clutch is immediately disengaged and the vehi-
cle rolls back. If you depress the accelerator
pedal again, the dry clutch engages immediately
and the vehicle pulls away.
After selecting the pulling-away gear, activate or
deactivate the rocking-free drive function via
the Systems menu window in the
ä
settings
menu (
Y
page 151).
In all-wheel drive vehicles, you can activate or
deactivate the rocking-free drive function using
the
i
button after selecting the pulling-away
gear.
The rocking-free drive function is deactivated
automatically when:
R
you are driving faster than approximately
8 km/h
R
you select a gear above the permissible pull-
ing-away gears
R
the on-board computer displays the Clutch
under heavy strain
event window in vehi-
cles with a hydrodynamic clutch
Activating or deactivating rocking-free
using the button (all-wheel drive vehicles)
X
Push the upper section of the
i
button.
When the indicator lamp in the
i
button
lights up, the rocking-free drive function has
been activated.
Pulling away and stopping the vehicle
Pulling away
Multifunction lever
Depending on the transmission, various pulling-
away gears can be selected. For the 8-speed
transmission 1st - 2nd; for the 12-speed trans-
mission, 1st - 6th; and for the 16-speed trans-
mission, 1st - 8th gearcan be selected.
If the clutch is under a heavy load, you can only
pull away in 1st gear. In the municip gearshift
program, you cannot select a gear higher than
2nd to pull away (
Y
page 153).
X
Start the engine.
X Turn the direction of travel selection switch to
the
h
position (drive)
:
.
In all drive programs, the transmission control
selects a suitable pulling-away gear, which
258
Automated transmission
Driving mode