Stabilisierungskugelkupplung – Montage- und Betriebsanleitung
19
version 4.00/2020 . 209692.002
11. Driving/ceaking noises:
During driving or manoeuvring, friction between the friction elements and the
coupling ball may cause noise; this affects neither the function nor the stabilising
effect of the coupling head.
Possible causes of this noise are:
-The towing vehicle coupling ball being painted, Dacromet-coated or galvanised
-The towing vehicle coupling ball being dirty, rusty or damaged
-The friction elements of the stabilising ball coupling being dirty or worn out
-See 10.1 or 10.2 for a solution. Noise may also be generated by:
-Dry running of the drawbar in the guide bushing of the overrun device
-Solution:Lubricate the bushing via the greasing nipples, remove the bellows and
grease the exposed drawbar.
-Detachable coupling ball on the towing vehicle
-Solution:Clean and regrease the detachable coupling ball on the locking
mechanism (see operating instructions for detachable coupling ball)
Refer to the requirements of Section 13 of the German Vehicle Regist
ration Ordinance – FZV with regard to the data in the registration certifi
cate in relation to the permissible trailer load (No 0.1 and 0.2) and the
permissible vertical load (No.13).
