Driving mode
5.8 Towing a trailer
Operating manual 3 302 819 en 5 - 81
GMK3060
13.12.2018
5.8 Towing a trailer
When towing a trailer, a towbar coupling is fitted to the back of the carrier.
Please observe the permissible trailer load of your truck crane.
H
Before coupling the trailer, adjust the towbar to the height of the towbar coupling.
H
Please observe the relevant national regulations regarding coupling and
uncoupling of the trailer.
Effects on the
axle loads
Observe the effects on the axle loads when towing a trailer. The axle loads of
your truck crane change in the following manner when operating with central axle
trailers:
– For every 100 kg (220 lbs) of drawbar load, the axle loads on the 1st axle line
are reduced by 74 kg (163 lbs) each.
– For every 100 kg (220 lbs) of drawbar load, the axle loads on the 2nd and
3rd axle lines are reduced by 87 kg (192 lbs) each.
s
G
Risk of accidents by trailer rolling away!
Before coupling or uncoupling the trailer, it must be secured with the trailer park-
ing brake as well as with chocks to prevent it rolling away. Ensure that it is still
possible to swivel the front axle of the trailer.
G
Risk of accidents when coupling the trailer!
No one may be between the truck crane and trailer when coupling the two
vehicles.
G
Risk of accidents from unexpected acceleration!
When you move slowly towards the trailer, the transmission automatically shifts
into manoeuvring mode. If the warning buzzer sounds, release the accelerator
immediately.
If you do not release the accelerator, the electronics will couple automatically
within a few seconds. The truck crane could accelerate unexpectedly and people
might be crushed between the trailer and the truck crane.
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