S e c t i on3 - P a ge 8 May 2013 Operating Pr ocedur e For intensied cable truss tensioner • Slide assembly onto the tail of the cable until the tensioner nose is fully seated against the wedges of the dogbone/wedge barr el. A minimum of one inch of cable tail should pr otrude fr om the end of the autogripper assembly . (If the cable does not pr otrude fr om the back of the tensioner the minimum one inch length the jaws will not grip the cable pr operly . Ther e is signifcant risk that the cable will strip the wedge teeth). • Pr essurize the cylinder to the desir ed load (2,000 psi/17 ton maximum for the 0.6” x 30 ton cable – see appendix 1 for a pr essur e versus load plot). If the cylinder runs out of travel befor e the load is r eached, r elease the pr essur e and slide the cylinder on further and r epeat the tensioning pr ocess. • The following wear components a re available for pur chase fr om your local DSI supplier (appendix 2): • Autogripper assembly • Autogripper wedges • O-Ring kit • Banana Nose • Ensur e that all hydraulic fttings a re tightened befor e operation, and that the unit is in good working or der . Check the following: • Ther e a re no major dents in the housing. • That the autogripper assembly (gold in color) is fully tightened against the face of the piston. • That the autogripper wedges a re in good condition and ar e not chipped, dented or missing teeth. • That ther e a re no major leaks in the system. • Monitor during use the following • The autogripper r emains scr ewed in tight against the face of the piston • The gripper wedges do not become too dirty • That the wedge teeth do not wear too badly . The autogripper wedges ar e designed for r euse, but eventually need r eplacing. • Befor e placing the tensioner onto the cable, ensur e the cable has minimal dirt and or dust on its surface. This dirt and dust will make it har der for the wedges to grip the cable. www .dsiundergr ound.com