WALTERSCHEID KU 2000 Manual Del Usuario página 13

well as pushing up the coupling pin and locking it in the upper position. The lateral locking pins now protru-
de noticeably, the coupling connection is released and the coupling disengaged.
Readiness for coupling is achieved by moving the trailer ring completely out of the clevis.
Never uncouple if the trailer is under tension or pressure. Forcing the handle may damage the mechanism.
4.2.2 Opening the coupling and automatic coupling:
Open the coupling as described under 4.2.1. The hand lever is in its top position, the coupling is ready for
connecting, and the safety pins project laterally from the housing. If a trailer ring is now moved into the
coupling, the trailer ring presses against the trigger in the clevis and the automatic coupling procedure is
triggered, i.e. the coupling pin is instantaneously forced down through the trailer ring and into the seat of
the saddle sleeve. The safety pins lie above the coupling pin and secure it, as indicated by the safety pins
retracting completely into the housing.
Correct locking of the coupling is only ensured if the laterally projecting safety pins (2) disappear com-pletely
in the housing of the coupling mechanism. Only then has the coupling pin moved completely into the saddle
sleeve and is a secure connection guaranteed. This must be checked after every coupling procedure.
The trailer ring of the drawbar must always hit the cone of the clevis when backing-up the tractor. Otherwise,
the clevis, the trailer ring and the coupling mechanism may be damaged.
4.2.3 Height adjustment (see also installation):
By moving the handle up (release locking) and right the two locking pins will move completely into the slid-
er. In this position the slider can be shifted in the guide rails in vertical direction. The handle being released,
the slider will automatically engage into the holes. After each adjustment attention must be paid that the
locking pins have engaged into the holes of the guide rails. Only then is the system locked properly. The
trailer coupling may be operated only in locked condition!
5. MAINTENANCE
(see Fig. 1)
5.1 Care
• Before putting into service and following prolonged use, lubricate the coupling pin, the saddle sleeve
and the trailer ring with high-viscosity, water-resistant grease.
• The grease reservoir of the coupling mechanism is filled at the factory, meaning that there is no need
for constant re-greasing. Too much grease in the coupling mechanism can impair the function of the
coupling, particularly at low ambient temperatures. Therefore, never connect the coupling mechanism
to the central lubrication system.
• The clevis bearing is lubricated through the grease nipple on the flange. This should be done twice per
year, or more often in the event of frequent use.
• If possible, avoid cleaning with a pressure washer. If this is unavoidable, re-grease the coupling.
• In the event of repairs (e.g. replacement of the coupling pin), remove the old grease and lubricate the
coupling mechanism with fresh grease. The coupling mechanism must be lubricated with water-resistant
grease suitable for the temperature range from -40 °C to +120 °C.
• Any dirt and corrosion must always be cleaned off the coupling in order to guarantee correct operation.
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