Instructions how to insert the straps of the Tefillin shel yad
Before one begins to work on the Tefillin he should say, “ Everything I do today today with with regards of Tefillin, I do for the sake of the holiness of Tefillin. ”
Outward wrapping straps
Put the strap with the knot to the side of the Tefillin that it will rest. Place a string through the opening "meavarta" of the Tefillin.
Loop the string through the loop of the strap.
Carefully pull the strap through the opening, "meavarta" of the Tefillin.