Jump-Starting, Tow-Starting And Towing Away; Important Safety Notes - Mercedes-Benz Unimog Operating Instructions Manual

X
Unscrew cover ; from jump-starting
socket :.
X
Connect a jump lead. Make sure that the
lug fits in the recess.
X
Donor vehicle: start the engine and run it
at a high speed.
X
Vehicle being jump-started: start the
engine and leave it running at idling speed.
X
Donor vehicle: switch off the engine and
turn the key back fully in the ignition lock.
X
Both vehicles: remove the jump lead.
X
Screw cover ; onto jump-starting
socket :.
X
Fit battery compartment cover =
( Y page 307).
Manoeuvring/tow-starting and tow-
ing away

Important safety notes

G
WARNING
If the engine is not running, the power steer-
ing and the compressed-air supply are inop-
erative. You then need to steer considerably
more forcefully. The spring-loaded parking
brake cylinder can be activated if there is a
loss of compressed air and the vehicle may
then brake uncontrollably. This could cause
you to lose control of the vehicle. There is a
risk of an accident.
Always use a tow bar. Always ensure the
compressed-air supply using an external
compressed-air source.
! If the engine is not running, observe the
following when manoeuvring, tow-starting
and towing away:
If the engine is not running and the
R
spring-loaded parking brake cylinder is
activated as a result of a loss of
compressed air, the brakes may over-
heat and be damaged. Charge the
compressed-air system or release the

Jump-starting, tow-starting and towing away

R
! Route cables and compressed-air lines so
that they can accommodate movements
without strain, kinks or friction when turn-
ing corners, etc.
Note that steering movements require con-
siderably more force at a standstill than when
the vehicle is moving. Avoid steering move-
ments when at a standstill, particularly when
the front axle is under heavy load.
If you transport the vehicle on a low-loader,
the permissible vehicle height may be excee-
ded. Pay attention to the headroom clearance
of buildings, e.g. bridges.
Before towing, agree on a clear signal with the
towing vehicle driver. Both you and the towing
vehicle driver must adapt your driving styles
to the more difficult conditions.
If the compressed-air brake system cannot be
charged, the spring-loaded parking brake cyl-
inders can be released manually
( Y
Notes on tow-starting and towing away
Specialist knowledge beyond the scope of
these Operating Instructions is required for
tow-starting and towing away. Only have your
vehicle tow-started/towed away by a profes-
sional towing/recovery company. Further
information can be obtained from a
Mercedes-Benz Service Centre.
spring-loaded parking brake cylinder
manually.
The brake system and gearshift are with-
out compressed-air supply if the vehicle
is being towed away. The transmission
lubrication system does not function and
there is a risk of transmission damage.
Observe the "Towing vehicles with
engine switched off" section.
page 335).
333
Z