Maintenance - walterscheid KIT 80 Betriebsanleitung

• replace the retainer in the ball carrier.
• Swing the retainer into the direction of travel and secure it with the retainer pins and the grip
pins . check the correct fit of the grip pins.
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4. MaiNteNaNce:

(see Fig. 2)
the hitch ball must be lubricated with water-resistant, multi-purpose grease at regular intervals, especially
after cleaning with a pressure washer. if thereis a lubrication fitting is on the ball-type trailer shank, the ball
can be supplied with grease via the central lubrication.
replacing the Ball:
the ball can be replaced twice at most. replacement is necessary when the ball diameter has become less
than 78.5 mm at any point. replacement may only be performed by a specialist workshop. Wear limits can
be checked conveniently by means of a separately available Walterscheid test gauge.
• remove the slotted nut M48x1,5 - DiN 70852.
• Force out the ball from below, using a suitable press.
• centre the new ball and force it in up to the stop, likewise using a press. Before doing so, slightly lubri-
cate the seat.
• apply loctite 648 on the thread of the ball and secure the new ball with the slotted nut by applying a
tightening torque of 160 Nm.
the retainer should be pulled out completely at regular intervals, depending on the schedule density, and
any dirt in the bearing has to be eliminated. Both retainer pins must be removed beforehand for this purpo-
se. Subsequently re-grease the bearing.
if the vertical play of the hitched coupling exceeds 5 mm, the appropriate parts must be replaced, e.g. re-
tainer, ball or ball-type trailer shank.
4.1 safety notes
• the user is obliged to always operate the coupling in perfect condition and to forbid its use by unau
thorised persons.
• the loads indicated on the type plate may not be exceeded.
• unauthorised conversion or modification of the coupling is not permitted.
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