Berger & Schroter ProfiTech 20121 Assembly And Operating Instructions Manual page 26

6. If the lever does not lock into place
at the bottom without excessive force,
it must be readjusted as shown below.
8. Turn both the top hexagon socket nuts respectively to the right or left using the
enclosed Allen wrench, depending on whether the quick release lever coupler is to
tightly or loosely fitted on the tow coupling. If the lever now locks into place at the
bottom without excessive force and the quick release lever coupler cannot move
freely to the right/left or up/down, the quick release lever coupler is adjusted opti-
mally.
7. The lever can be easily locked into
place at the bottom but the quick re-
lease lever coupler freely move to the
right/left or up/down. Now, readjust-
ment must take place as shown below.
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