Ideally, Musaf should be davened before the seventh hour of the day (1:16pm).
Since the Chazzan cannot move out of his place to bow at Aleinu, he should stand at a distance from the Shtender, to allow him some space to bow.
For the Tekios of the silent Shmoneh Esrei, the Baal Tokeiah knocks on the Bimah beforehand to signal that he is about to blow. One should pause to listen even if he is not yet up to the corresponding place in Shmoneh Esrei.
A Makrie is not used during Musaf.
The paragraph of Misoid (beginning of Chazaras Hashatz) is recited by the Chazzan and not the congregation.
One should stand for U’Nesane Toikef.
The Chazzan recites the entire Aleinu – including the second half – out loud. The congregation quietly recites it word for word with him, bowing at V’Anachnu Korim, and continuing until Hu Elokenu Ein Oid. At that point, they begin saying the Pesukim of Atoh Horayso, as printed in the Machzor.
The subsequent paragraph (beginning Oichilah) is recited by the Chazzan only.
One may not bow directly on a stone floor, but rather, should prepare mats upon which to bow. [Mats do not need to be used when bowing on a floorcovering of any other type.]
When one bows, his head should reach all the way to the ground.
The Chazzan must keep his feet together during Shmoneh Esrei. He should therefore be helped up after bowing at Aleinu.
