WINTERHOFF WS 3000-D Montage- Und Betriebsanleitung Seite 7

GB
ting lever can be moved into the open position. The trailer can now be uncoupled from the to-
wing vehicle with the help of a jockey wheel.
Important: The overrun device must be detensioned when uncoupling, i.e. the bellow must be
extended.
The trailer should be parked with the ball coupling closed if not being used for any greater length
of time. To do so, raise the open operating lever (Fig. 4), simultaneously pull the ball socket for-
wards (mobile element – Fig. 9) or press the SAFETY BALL into the ball chamber and close the
operating lever slowly.
3.5 Checking the stabiliser
The condition of the friction pads can be checked after connecting and activating the stabiliser.
(Fig. 7) If the wear display is within the green "OK" range, the friction pads are either as new or
sufficient for driving operation.
If the display has reached the yellow range, the friction pads will have to be replaced.
Do not drive with the trailer if the display is within the red "STOP" range.
The following causes for this are possible: Friction pads worn out, coupling ball worn out, there
is no coupling ball in the ball chamber of the WS 3000/3500.
3.6 Anti-theft device
WS 3000 ball couplings can be fitted with anti-theft devices ROBSTOP WS 3000 und ROBSTOP
WS 3000/3500 PLUS (reinforced hardened version with special locking cylinders and SCM-NL,
SBSC-S and SoldSecure-GB certificates) through the provided side housing openings both in a cou-
pled and an uncoupled state.
4. Information for journeys and maintenance
4.1 Coupling ball on towing vehicle
The coupling ball of the trailer coupling must comply with required dimensions and be undama-
ged, clean and free of grease.
In the case of dacromet-coated (matt-silver corrosion-protection coating) and painted coupling
balls, the coating must be removed completely using 200-240 abrasive paper prior to being driven
for the first time and then cleaned, e.g. with thinners or spirit, so that it does not collect on and
clog the surface of the friction pads. The surface of the coupling ball must be "bright metal".
(Fig. 8) A damaged or unclean coupling ball results in increased wear to the friction pads and a
greasy coupling ball reduces the stabilising effect considerably.
4.2 Ball coupling
Keep the inside of the ball chamber close to friction elements clean and free of grease (Fig. 9). If
the friction pads are dirty, they can be cleaned using abrasive paper 200-240. Follow this by
cleaning the surface with thinners or spirit. Oil all moving bearings and bolts slightly. Regular
maintenance and care increases the service life, function and safety of your WS 3000/WS 3500
ball coupling.
4.3 Replacing friction pads
The friction pads are very easy to change if worn. We can supply a replacement set containing 2
friction pads: order no.: 6205 – CLIP-BELAG SET WS 3000
4.4 Travelling noise
Noise may occur whilst travelling, though these do not have any significance for the function of
the ball coupling.
Possible causes of noise can include:
1. Coupling ball of the towing vehicle dacromet-coated, galvanized or painted
2. Coupling ball of the towing vehicle dirty, rusty or damaged
3. Friction pads in the WS 3000 dirty for reasons as named in sections 1.- 3. or for other forms of
contamination
Remedy: as for section 4.1 / 4.2
Furthermore, noise can occur as a result of:
1. Tow bar/pipe running dry in the bushings of the ramp
Remedy: Lubricate the bushings at the grease nipples, also pull off bellow and grease exposed
tow bar.
2. Removable coupling balls on towing vehicle
Remedy: Regrease removable coupling ball on the locking mechanism (see operating instructions
for trailer coupling).
Fig. 7: Wear display
Fig. 8: „bright metal"
Fig. 9: Location of friction pads
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