AL-KO 605 363 Mode D'emploi page 11

Troubleshooting
9
Fault
Coupling does not engage when
placed on ball
Trailer cannot be uncoupled
Too much play in the coupling
danger of trailer becoming
unhitched
Cause
Ball diameter greater than
50 mm.
Inner parts of the coupling are
dirty or are not functioning
correctly.
Ball deformed.
Coupling worn out.
Articulation angle exceeded.
Rivet bent.
Elimination
Change ball.
Clean and grease coupling,
replace as necessary.
Align trailer and car and
uncouple.
Grease/lubricate coupling
mechanism.
Have coupling changed.
Have towball changed.