0054 00  TM 10-1670-287-23&P  d.  Cut and remove tacking on risers below connector links.  e.  Loosen barrel nuts on connector links with $^{7}$/$_{16}$-inch open-end wrench.  f.  Remove connector links from risers and discard old lines.  g.  Connect connector links to risers. Connector link barrel nuts must face inboard and tighten  upward. h. Using  $^{7}$/$_{16}$-inch open-end wrench, tighten barrel nut on connector links ¼ turn past hand tight.  i.  Hand-tack each riser at connector link with one turn double nylon lacing tape.  Connector Link  Barrel Nut  Riser Tacking Connector Link  Barrel Nut  Riser Tacking 0054 00-2 