Metrohm NIRS Analyzer PRO - Manual (Page 18)

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4. Adjust height with the lab jacks, so the
U-Bolts align properly with the frame
slots. Adjust each side equally, to keep
the Analyzer PRO aligned with the
bracket.
5. When the height is correct, push the
U-Bolt through the slots.
Do this on both sides of the Analyzer
PRO instrument, in preparation for
securing with washers and nuts.
6. Install large washers, lock washers,
and nuts on the ends of the U-Bolts.
Do not tighten until all four sets of
washers and nuts are in place.
When all four sets of hardware are in
place, gently tighten each nut, using
care not to distort the U-Bolts or
frame.
If preferred, nylon-insert locking nuts
may be used in place of normal lock
washers and hex nuts.