Operation Manual
03-6
3.6 Overrunning equipment
and wheel brakes
Checking the overrunning
equipment
1. If it is possible to push the towbar more than
halfway (approx. 5 mm) in when the locking bra-
ke has been activated, the braking system must
be regulated immediately by an experienced
shop.
2. To check the reaction point:
Activate the locking brake and push the ca-
ravan backwards until the hand brake lever is
completely tilted. Then push the safety clutch
into the overrunning equipment. The towbar
must extend into the neutral position by itself by
means of the gas cushion in the hydraulic shock
absorber. Should this procedure take longer
than 30 seconds, the overrunning equipment
must be checked by an experienced shop.
The overrunning brake facility consists of the
overrun coupling, a transmission and the wheel
brakes. Should the caravan bump into the base
vehicle, the overrunning brake facility ensures
that it will automatically brake. In other words,
the overrunning brake facility functions indepen-
dently from the base vehicle's brake system. The
brake force that is generated depends mainly on
how intensely the base vehicle brakes and how
heavily the caravan has been loaded. A shock
absorber integrated in the overrun coupling and
with a dened response threshold ensures, on
the one hand, a smooth overrun while, on the
other hand, preventing the caravan from braking
if you only take your foot off the gas or change
gears in the base vehicle.
Wheel brakes
The following information regarding brake ad-
justment applies for all models with the excepti-
on of Premium vehicles.
The wheel brakes that have been used are drum
brakes that do not automatically adjust. They
have an automatic reverse that is sensitive to the
course you drive. The linings of the wheel brakes
are wear and tear parts; therefore, they must be
We recommend that you always check
this is functioning correctly before
using the caravan.