The manual asks for greasing hitch nipple (#1) on the regular basis.
What doesn't mention, is to keep greased bottom guide bushing (#2),
so after cold and salty winter one may find the pin jammed thanks to rust build up,
which may lead to very educational but rather painful experience.
...and if you ended up following my steps start with pulling out cotter pin
and unbolting big m-f 2 3/16" nut first.
Ringfeder.jpgRingfeder diagram.jpg
Anyway, hitch is operational again and that brings me to another topic:
if anybody in North America is pulling kinda Müller-Mitteltal trailer 'cause
that's something I'm thinking about.