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Tow-starting the vehicle
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ting
Towing and Recovery | Actros, Antos (Model 963), Arocs (Model 964)
General safety information
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WARNING
• If the reservoir pressure in the compressed air
system is too low or nonexistent (warning lamp
lights up below 6.8 bar), there will not be adequate
braking effect. The clutch and transmission control
systems may be inoperative depending on the
pressure level. Tow-starting is not possible.
• Fill the compressed air system from an external
source before tow-starting.
• When the vehicle is tow-started, there will be no
power steering or pneumatic assistance.
• Only use a tow bar.
• Risk of skidding on wet or slippery roads.
• Only tow-start the vehicle in the forward direction
of travel with a forward gear engaged.
• If spring brake cylinders have been mechanically
released, the parking brake is inoperative.
• Do not tow-start if there is damage to the engine,
transmission, transfer case, axle or steering.
• Only tow-start the vehicle with the batteries
connected.
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WARNING
When tow-starting, the permanent brake (engine
brake/retarder) in the vehicle may perform uncontrol-
led braking actions.
Switch off the permanent brake before tow-starting. If
necessary, use the service brake to brake the vehicle
while tow-starting.
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WARNING
If Active Brake Assist is switched on while you are
using your vehicle for work or towing it, for example,
the vehicle may brake by itself. The wheels could lose
their grip. There is a risk of accident!
Always switch off Active Brake Assist in these or simi
-
lar situations.
Ë
If the maximum permissible engine speed is
exceeded, the warning buzzer sounds. Select a higher
start-off gear or reduce the towing speed.
M
Switch electronic ignition lock to drive position. The
indicator check runs. If the indicator check does not run,
the vehicle cannot be tow-started.
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Switch off ASR (acceleration skid control).
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Switch off ESP
®
(Electronic Stability Program).
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Switch off ABA (Active Brake Assist).
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In vehicles with ADR classification, check that the battery
disconnect switches are deactivated, see page 16.
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Attach a tow bar to the drawbar or coupling jaw, see
page 58.
