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Power take-offs
328
Useful information
These Operating Instructions describe all the
models and standard and optional equipment
of your vehicle that were available at the time
of going to print. Country-specific differences
are possible. Bear in mind that your vehicle
may not be equipped with all the functions
described. This also applies to safety-relevant
systems and functions.
Read the information on qualified specialist
Y
workshops (
page 30).
Power take-offs
Function and notes
G
WARNING
When using the engine run-on function, the
vehicle may start to roll if crawler mode is
activated and the pulling-away gear is
engaged. There is a risk of an accident.
When using the engine run-on function:
shift the transmission into neutral.
R
apply the parking brake.
R
! Vehicles with a clutch pedal:
After declutching, you must wait for 10 sec-
onds before engaging or disengaging the
power take-off. In this way you will avoid
consequential damage.
You can use the power take-off to drive aux-
iliary equipment, e.g. hydraulic pumps. The
engine and power take-off must be operated
at a certain engine speed (working speed),
depending on the conditions of use.
The working speed can be changed:
via the on-board computer in the driving
R
systems menu, window
(
Y
page 332)
using the F constant engine speed
R
switch (
Y
page 332)
Power take-offs with speed limiter: when
power take-off is engaged, the set working
speed cannot be exceeded.
Engine speed
The display of the on-board computer shows
the activation state of power take-off:
/ Power take-off disengaged
0 Power take-off engaged
Vehicles with transmission-driven power
take-off: if power take-off is engaged, you
can select any pulling-away gear or reverse
gear when stationary. Changes of direction
are only permissible in the selected gear. You
may not change gear while driving. On vehi-
cles with an automated manual transmission,
the transmission changes automatically to
manual drive program
is switched on.
Vehicles with engine-driven power take-
off, without clutch actuator (N4Y or N4Z):
pulling away is not possible when power take-
off is engaged. You cannot operate power
take-off while the vehicle is in motion.
Vehicles with engine-driven power take-
off, with clutch actuator (N4X N4W): if
power take-off is engaged, you can select any
pulling-away gear or reverse gear when sta-
tionary. During the journey you can select any
gear.
If you have to leave the cab to operate power
take-off, you can use the ignition lock's
engine run-on function (
engine continues to run and the doors of the
cab can be locked with the key.
When power take-off is engaged, manual
regeneration is interrupted. Manual regener-
ation cannot be started if a power take-off is
active.
The engine speed may rise and the engine
i
noise may change while regeneration is in
process.
If you have to leave the cab to operate
i
power take-off, observe the important
safety notes on the diesel particle filter
Y
(
page 300).
M
when power take-off
Y
page 231). The
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