[. . . ] [. . . ] Do not remove them. Step 1 Step 2 Release the 4 splines by pulling outward. Step 3 Fit the new cassette into the post, aligning the 4 splines to the slots. Step 2 Step 3 Step 4 Press the cassette fully into post and tighten the four screws. Cassette is now ready to use. Step 4 Lawrence Metal Products Inc. · 800. 441. 0019 · 631. 666. 0300 · Fax: 631. 666. 0336 · www. lawrencemetal. com e-mail: service@lawrencemetal. com · PO Box 400-M · 260 Spur Drive South, Bay Shore, New York 11706-0779 USA [. . . ] [. . . ]