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If you have to leave the cab to operate the power
take-off, you can use the engine run-on function
of the ignition lock. The engine then continues to
run and you can lock the doors of the cab with
the key (
page 198).
/
%
The engine speed is increased and the engine
noise may change during regeneration.
%
If you have to leave the cab to operate the
power take-off, observe the important safety
notes for the diesel particulate filter
(
page 276).
/
Activates/deactivates power take-off
Activate power take-off
The power take-off must be load-free when it is
activated/deactivated. The body/equipment
mounting directives must also be observed.
Observe the activation/deactivation order when
using the engine-driven power take-off (NMV).
Failing to observe the activation/deactivation
order when using a transmission or engine-driven
power take-off (NMV) can lead to functional
impairments. This includes, for example, longer
activation/deactivation times or failure to
engage/disengage power take-offs.
The required power of the power take-offs must
not exceed the maximum engine output at the
respective operating point.
Stop the vehicle.
#
Apply the parking brake.
#
Shift the transmission to neutral position.
#
Leave the engine running at idle speed.
#
Vehicles with manual transmission: depress
#
the clutch pedal and keep it pressed down.
Press the quick access button ô of the
#
multimedia system.
The
Switch
menu is shown in the display.
To switch on (N4Y/N4Z): First switch on the
#
transmission power take-off and then the
(NMV).
To switch on (N4W/N4X): First switch on
#
the (NMV) and then the transmission power
take-off.
Press the I button.
#
When the power take-off is activated, the dis‐
play of the on-board computer shows the acti‐
vation status 0. The red indicator lamp in
the switch I lights up.
Vehicles with manual transmission: release
#
the clutch pedal when the display shows the
power take-off is activated.
You cannot engage the power take-off when the
parking brake is released. In this case, the yellow
event window in the on-board computer
shows ! and
Engage parking
the parking brake and activate the power take-off
again. If / is flashing in the display of the on-
board computer, the electronic management sys‐
tem does not recognise the vehicle's current
operating state.
Check whether the transmission is in neutral
#
position.
Vehicles with manual transmission: check
#
whether the clutch pedal has been
depressed.
Check whether the vehicle is stationary.
#
Check whether the parking brake is applied.
#
Activate the power take-off again.
#
If / is flashing again in the display of the
#
on-board computer, contact a qualified spe‐
cialist workshop.
%
Automatic regeneration results in high engine
speeds at the transmission power take-off.
Power take-off operation during automatic
regeneration is only permitted if the power
take-off application is designed for increased
engine speed during regeneration operation.
Wait for automatic regeneration and activate
the transmission power take-off again.
Deactivate power take-off
Observe the power take-off activation/deacti‐
#
vation order as instructed.
Leave the engine running at idle speed.
#
Vehicles with manual transmission: depress
#
the clutch pedal and keep it pressed down.
Press the quick access button ô of the
#
multimedia system.
The
Switch
menu is shown in the display.
To switch off (N4Y/N4Z): First switch off
#
the transmission power take-off and then the
(NMV).
To switch off (N4W/N4X): First switch off
#
the transmission power take-off and then the
(NMV).
Press the I button.
#
The power take-off is deactivated. The red
indicator lamp in the switch I goes out.
Working mode 307
brake.. Apply
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