Page 10 - Zavation Z-Direct Lumbar System with DSG Tech Booklet - Hensler 2019
P. 10

Final Tightening:
                                                           The final tightening will consist of the Counter Torque
                                                           Wrench and T-Handle Torque Wrench Driver. The
                                                           Counter Torque Wrench engages the rod and screw
                                                           head, while the T-Handle Torque Wrench engages the
                                                           set screws. Rotate the T-Handle Torque Wrench Driver
                                                           until the limit driver produces an audible and tactile
                                                           click indicating final tightening is achieved. The torque
                                                           limit is set to click at 12N-m (106in-lbs).








                                                           Cross Connectors:








                                                           Use the Calipers to measure the distance between the
                                                           two rods. Choose the cross connector of appropriate
                                                           length. Assure the cross connector set screws are not
                                                           advanced to ensure fully seating of cross connectors
                                                           onto the rods. Use the Cross Connector Screwdriver to
                                                           engage the cross connector and insert onto the rods.
                                                           Once fully seated, use the Cross Connector Torque
                                                           Wrench Driver to torque each screw until the limit
                                                           driver produces an audible and tactile click indicating
                                                           final tightening is achieved 4.2N-m (37.5 in-lbs).  Torque
                                                           the center set screw only after both rod set screws have
                                                           been torqued.























                                                           DCR 234                                ST-002 Rev 4
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