been told by mot guy slight play at steering wheel.
if memory serves me right its a case of undo nut on box and tighten cap head bolt, yes?

cheers

only when box is central ,either by counting turns or pin through arm into bottom of box ,once box is set central steering wheel can be set to suit that position too then road wheels to suit both ,rock input uj on box while you adjust 6mm allen screw clockwise to just remove free play ,either side of center box does have free play getting larger to each lock