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ATTENTION! If the drawbar tube has 14 mm Ø fastening holes, the WS 3000 is
not to be fitted using M 12 screws. It can be fitted using M 14 screws with the
holes enlarged at the factory.
2.3 If the WS 3000 ball coupling is used as a replacement for another type of
coupling, care must be taken in connection with the overrun equipment to ensure
that the shock absorber is refitted properly and that any spacer tubes in the
drawbar are reinstalled correctly. Pease use the Ø 12 x 34 mm or Ø 12 x 49 mm
bolts supplied for this purpose depending upon the drawbar diameter. Use bolts
(2)
(3)
as a drift when dismantling the fixing screw
or
(Fig. 3) depending upon the
method used to mount the shock absorber and leave them in the drawbar during
assembly/dismantling of the ball coupling for centering the shock absorber.
Remove the bolts again when pushing the new fixing screw through.
2.4 Proceed as follows to fit the bellow supplied for the WS 3000 D-S.
In the case of drawbar diameters of 40 - 50 mm, simply push the bellow, prior to
mounting the WS 3000 D-S, over the drawbar tube. In the case of diameters of
60 - 70 mm, the small connecting piece in front of the rubber lip must be cut off
using a knife, for example. When the cross screw connection is applied, also cut
out the bottom marked hole; cut out both laterally marked holes for longitudinal
screw connection.
3. Operating instructions
3.1 Coupling
The opened ball coupling is placed on the coupling ball of the towing vehicle
( Fig.4 ).
The support load and possible additional loading of the drawbar serves to cause
(1)
the ball coupling to close automatically and the side securing lugs
are parallel
in relation to the securing surfaces on the housing ( Fig. 4 ).
3.2 Activating the stabiliser
Here, the operating lever must be pushed down out of its closed position to the
stop. ( Fig. 5 ). In doing so, the spring assembly which generates the pressing
force via the friction pads onto the ball coupling is tensioned. Upon completion of
this operation, the operating lever is roughly parallel to the axis of the drawbar. It
is possible to drive with the stabiliser deactivated, for example, when
manoeuvring.
3.3 Switching the stabiliser off
Pull the operating lever slowly upwards in order to turn off the stabiliser ( Fig.6 ).
3.4 Disconnection
Disconnect the lighting plug and contact-breaking cable, turn off stabiliser (Fig.6),
simultaneously pull back and lift the operating lever ( Fig. 6 ) such that the side
(1)
securing lugs
swing over the securing surfaces and the operating lever can be
moved to the open position. The trailer can now be uncoupled from the towing
vehicle with the aid of a jockey wheel.
Note: when uncoupling, the overrun device must be released i.e. the bellow is
stretched.
If not used for any lengthy period of time, the trailer should be parked with the ball
coupling closed. For this purpose, lift up the open operating lever ( Fig. 4 ) and at
the same time pull the ball socket ( movable element with friction pad – Fig. 8 )
forward or press the safety ball into the ball space and slowly close the operating
lever.
3.5 Checking the stabiliser
When the trailer has been hooked up and the stabiliser activated, the condition of
the friction linings can be checked. The wear indicator located on the top of the
operating lever ( Fig. 7 ) displays a bar graph marked with + and - symbols. The
ball coupling is set at the factory such that the pin visible in the oblong hole is
positioned under the + symbol on the bar graph when new friction pads have
been fitted.
3.6 Anti-theft device
The WS 3000 D-S/H-S/L-S ball couplings can be locked both in coupled and
disconnected condition with the ROBSTOP WS 3000 by using the hole on the
side of the housing.
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