Axor Montreux 16510XX1 Installation Instructions / Warranty page 5

Install the friction washers, metal washers and mounting
nuts.
Tighten the mounting nuts by hand.
Tighten the tensioning screws.
Install the spout, slide bushing and o-ring.
Make sure that the slide bushing is oriented correctly.
Tighten the spout screw.
16805 / 16511 only:
Inspect the alignment of the handles.
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