bibliotheca.com, page 8
4. If you need to adjust the height on any of the return devices, all four feet on a unit are
adjustable,
l untighten the upper screw nut of the desired leg (clockwise),
l adjust the height by turning the lower nut,
l tighten the upper screw (counterclockwise),
5. Use a 14mm spanner wrench to adjust the height and 13mm spanner wrench to lock the
height. The top nut can lose the thread on the leg so it may become loose. When re-fixing,
make sure it is straight,
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