Equipment Operation - Mercedes-Benz Unimog Operating Instructions Manual

Equipment operation

262
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
workshops ( Y page 30).
Ballast/weights
! Observe the permissible axle and wheel
loads. Do not exceed the maximum gross
vehicle weight. During transportation, the
difference between the left and right wheel
loads should not exceed 10%.
The following parts of the vehicle may oth-
erwise be damaged:
tyres
R
chassis
R
axles
R
The driving, braking and steering character-
istics of the vehicle change when equipment
is coupled or attached as a result of the addi-
tional overhang and momentum of the equip-
ment. Drive with even greater care.
The Unimog has a lightweight construction to
enable it to carry the maximum possible
equipment weights and payloads. Therefore,
it is necessary to load it with ballast weights.
The weight of the Unimog must be adapted to
suit the work to be performed.
Equipment operation
Engine speed mode
General notes
If engine speed mode is activated, it is possi-
ble to drive at a constant engine speed above
the idling speed in equipment operation.
Driving characteristics in engine speed mode
differ considerably from driving in normal
mode. The accelerator no longer controls the
drive torque, but the engine speed. Engine
speed mode should be disengaged for pulling
away on uphill slopes in traffic.
The engine brake is unavailable in engine
speed mode. Engine speed mode is automat-
ically deactivated if you drive faster than
approximately 25 km/h. The F indicator
lamp in the status area of the on-board com-
puter goes out.
Automatically activating engine speed
mode
If you activate one of the following systems,
engine speed mode is automatically activa-
ted:
hydrostatic drive system (
R
transmission-driven power take-off
R
Y
( page 264)
engine-driven power take-off
R
( Y page 264)
Front PTO shaft ( Y
R
Working speed
X
Activate constant working speed mode in
the on-board computer (
or
X
Set the working engine speed using the
accelerator.
Manually activates/deactivates engine
speed mode
Only activate engine speed mode when you
are operating equipment that requires this
mode to be activated. This can be the case
Y page 198)
page 267)
Y page 263).