Grohe Axor 35115801 Installation Instructions Manual page 7

Push the baseplate against the wall (1).
Thread the sleeves into the rough ().
2.
1.
Tighten the retaining nuts using the service key.
Lightly lubricate the o-rings on the spout and handle
escutcheons with the enclosed lubricant (1). Push the
escutcheons onto the baseplate ().
2.
1.
7