Towing The Truck Crane - Manitowoc Grove GMK4090 Operating Manual

8.5.3
In the case of
engine/transmis-
sion damage
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Operating manual
GMK4090

Towing the truck crane

Observe the following if the truck crane has to be towed away:
– The truck crane may only be towed away with a tow-rod. Attach the tow-
rod to the tow-rod coupling on the front bumper.
– Be sure to observe the statutory regulations of the country in which you
are working concerning the overall length of the towing and towed vehi-
cle, including tow-rod.
– If the engine, steering and service brake still work, you can tow the truck
crane with a lorry.
– If the engine, steering or service brake no longer function properly, the
truck crane must be towed with a special breakdown truck.
The front towing coupling is designed for a maximum tractive force of 10 t
(22,000 lbs). Tensile force may be applied only forwards or at an angle of 45°
to both sides of the longitudinal axis of the truck crane.
The following information only applies to towing the truck crane out of the
immediate hazard area in the event of damage to the engine or transmis-
sion.
Risk of damage to the drive line
Always perform all the measures indicated in this section before towing
away. Tow the truck crane at a maximum speed of 7 km/h (4 mph) and for
a maximum distance of 100 m (330 ft). For longer distances, additional
measures must be taken, refer to
Compressed-air supply
If the engine fails, the truck crane must be supplied with compressed air by
the tractor-vehicle so that the brake system is still operable.
8.5 Emergency operation and breakdown assistance
Manitowoc Crane Care
3 302 736 en
Malfunctions in driving mode
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