Description And Operation - WALTERSCHEID IN338-28N Instrucciones De Instalación Y Operación

4. DESCRIPTION AND OPERATION

The pertinent safety regulations must be observed when coupling and uncoupling.
No one may stand between the vehicles. The coupling may only be operated in locked condition.
When coupling and uncoupling, the drawbar must be as horizontal as possible relative to the coupling.
The drawbar must be preferably in axial direction when coupling or uncoupling.
4.1 Description:
The coupling is a non-automatic, height adjustable trailer coupling (slider) with non-rotatable clevis , its
clevis dimensions and corresponds to ISO 6489-5 and VO (EU) 2015/208.
4.2 Operation:
4.2.1 Uncoupling and opening the coupling:
Use supporting jacks or similar to stop the trailer rolling away. The coupling and uncoupling occurs by
introducing respectively removing the coupling pin (6) into respectively out of the hole of the clevis (2). The
coupling pin has to be secured against unintentional removing or loosing. This will be achieved by locking
with a spring pin (7). Never uncouple if the trailer is under tension or pressure.
The trailer ring of the drawbar must always hit the cone of the clevis (2) when backing-up the tractor. Other-
wise, the clevis, the trailer ring and the coupling mechanism may be damaged.
4.2.2 Height adjustment (see also installation):
By moving the handle (4) up (release locking) and right the two locking pins (5) will move completely into
the slider (1). In this position the slider can be shifted in the guide rails in vertical direction. The handle (4)
being released, the slider will automatically engage into the holes. After each adjustment attention must
be paid that the locking pins (5) have engaged into the holes of the guide rails and the dowel pin (3) in the
handle (4) snap in the slot of the slider. Only then is the system locked properly. The trailer coupling may be
operated only in locked condition!
5. MAINTENANCE
5.1 Care
> Any dirt and corrosion must always be cleaned off the coupling in order to guarantee correct operation.
All moving parts of the coupling must be lubricated regularly (depending on the length of use) and che
cked for easy movement.
> If possible, avoid cleaning with a pressure washer. If this is unavoidable, re-grease the coupling.
5.2 Checks
> Coupling pin (6): Clean the coupling pin and measure its diameter of the coupling pin. The coupling pin
must be replaced if the dimensions are below the limits shown in table 3.
> Clevis (2): Measuring locating hole of the coupling pin in the clevis. In case of exceeding the wear limit in
table 3 the slider (1) must be replaced.
NON-AUTOMATIC TRAILER COUPLING WITH
NON-ROTATABLE CLEVIS TYPE
IN338-28N, IN338-43N, IN338-50N
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