{"id":17969,"date":"2024-09-26T00:00:00","date_gmt":"2024-09-26T06:00:00","guid":{"rendered":"https:\/\/support.epiloglaser.com\/staging\/laser-machine\/fusion-pro\/getting-started\/x-axis-belt-tensioning-guide\/"},"modified":"2025-05-22T09:41:28","modified_gmt":"2025-05-22T15:41:28","slug":"x-axis-belt-tensioning-guide","status":"publish","type":"post","link":"https:\/\/support.epiloglaser.com\/staging\/laser-machine\/fusion-edge\/service-and-repair\/x-axis-belt-tensioning-guide\/","title":{"rendered":"X-Axis Belt Tensioning Guide"},"content":{"rendered":"

Identifying X-Axis Rail Version<\/h2>\n

Before you begin, determine which version of the X-Axis rail is installed in your machine. Check the right side of the X-Axis rail: if there is no cutout, you have Revision 1<\/a>; if there is a cutout, you have Revision 2<\/a>. Follow the corresponding procedure based on this identification.<\/p>\n

\"right<\/p>\n

Rev 1 Procedure<\/h2>\n
    \n
  1. \n

    Power OFF machine.<\/p>\n

    \t\t\"screenshot\"<\/li>\n

  2. \n

    Remove the left side panel.<\/p>\n

    \t\t\"screenshot\"<\/li>\n

  3. \n

    Manually move the carriage to the right, and down about halfway.<\/p>\n

    \t\t\"screenshot\"<\/li>\n

  4. \n

    Insert the tip of the tensioner tool into the center of the X-axis belt. Notches must align with rail.<\/p>\n

    \n \t\t\tNote:<\/strong> The notches on the tensioner tool must align with the cutout on the X-axis rail. This is necessary for the tool to provide an accurate reading.\n\t\t<\/div>\n

    \"screenshot\"<\/p>\n<\/li>\n

  5. \n

    When the tool is seated flush against the X-axis rail, the O-ring on the rear shaft will indicate the belt tension.<\/p>\n

    \t\t\"screenshot\"<\/p>\n

    \n
    \n

    WARNING:<\/strong> Do NOT attempt to adjust the belt tension tool. These are calibrated at the factory.<\/strong><\/p>\n<\/p><\/div>\n

    \t\t\t\"screenshot\"\n\t\t<\/div>\n

    Reading Belt Tensioner<\/h3>\n<\/p>\n
      \n
    • If the O-ring is flush with the body of the tensioner tool, the belt is properly tensioned.<\/li>\n
    • If the O-ring is not visible, the belt tension is too low.<\/li>\n
    • If there is a gap between the O-ring and the body of the tool, the belt tension is too high.<\/li>\n

      \t\t\t\t\"screenshot\"<\/ul>\n<\/li>\n

    • \n

      To adjust the tension of the X-Axis belt, begin by loosening eight (8) 7\/64\u201d hex screws on the X-Axis idler assembly.<\/p>\n

      \"screenshot\"<\/div>\n

      BACK<\/p>\n

      \n

      \"screenshot\"<\/p>\n<\/div>\n

      FRONT<\/p>\n<\/li>\n

    • \n

      Evenly turn the two (2) 7\/64\u201d hex screws on the end of the X-Axis idler assembly.<\/p>\n

      \n \t\t\tNote:<\/strong> Tightening these two screws adds tension to the belt. Loosening, will remove tension.\n\t\t<\/div>\n

      \t\t\"screenshot\"<\/li>\n

    • \n

      Repeat steps 4 and 5, continually checking the belt tension after adjusting the tensioner screws.<\/p>\n<\/li>\n

    • \n

      Once the O-ring is flush with the body of the tool, continue with the \u201cBelt Tracking\u201d section of this document.<\/p>\n<\/li>\n<\/ol>\n

      Belt Tracking<\/h2>\n
        \n
      1. \n

        Open your preferred illustrating program and create a black, raster box that is roughly two (2) inches smaller than the bed and four (4) inches tall.<\/p>\n<\/li>\n

      2. \n

        Set the speed to 100% and the power to 0%.<\/p>\n<\/li>\n

      3. \n

        Send the job to the engraver, open the top door, and start the job.<\/p>\n<\/li>\n

      4. \n

        The belt should stay in the middle of the idler pulley as the carriage head moves left to right.<\/p>\n

        \t\t\"screenshot\"<\/li>\n

      5. \n

        If the x-axis belt is riding against the idler pulley flange, make equal but opposite adjustments to the two (2) 7\/64\u201d tensioner screws.<\/p>\n

        If the X-Axis belt is too high<\/h4>\n<\/p>\n
          \n
        • Tighten the top screw 1\/4 turn<\/li>\n
        • Loosen the bottom screw 1\/4 turn<\/li>\n<\/ul>\n

          If the X-Axis belt is too low<\/h4>\n<\/p>\n
            \n
          • Loosen the top screw 1\/4 turn<\/li>\n
          • Tighten the bottom screw 1\/4 turn<\/li>\n<\/ul>\n

            \t\t\"screenshot\"<\/li>\n

          • \n

            Once the belt is tracking properly, confirm that the belt tension is still set properly.<\/p>\n<\/li>\n

          • \n

            Once the belt tracking and tension are properly set, you can tighten down the eight (8) 7\/64\u201d hex screws to lock the idler pulley in place.<\/p>\n

            \"screenshot\"<\/div>\n

            BACK<\/p>\n

            \n

            \"screenshot\"<\/p>\n<\/div>\n

            FRONT<\/p>\n<\/li>\n<\/ol>\n

            Rev 2 Procedure<\/h2>\n
              \n
            1. \n

              Power OFF machine.<\/p>\n

              \t\t\"screenshot\"<\/li>\n

            2. \n

              Remove the left side panel.<\/p>\n

              \t\t\"screenshot\"<\/li>\n

            3. \n

              Manually move the carriage to the right, and down about halfway.<\/p>\n

              \t\t\"screenshot\"<\/li>\n

            4. \n

              Insert the tip of the tensioner tool into the center of the X-Axis belt. Notches must align with rail.<\/p>\n

              \n \t\t\tNote:<\/strong> The notches on the tensioner tool must align with the cutout on the X-Axis rail. This is necessary for the tool to provide an accurate reading.\n\t\t<\/div>\n

              \"screenshot\"<\/p>\n<\/li>\n

            5. \n

              When the tool is seated flush against the X-Axis rail, the O-ring on the rear shaft will indicate the belt tension.<\/p>\n

              \t\t\"screenshot\"<\/p>\n

              \n
              \n

              WARNING:<\/strong> Do NOT attempt to adjust the belt tension tool. These are calibrated at the factory.<\/strong><\/p>\n<\/p><\/div>\n

              \"screenshot\"\n\t\t<\/div>\n

              Reading Belt Tensioner<\/h3>\n<\/p>\n
                \n
              • If the O-ring is flush with the body of the tensioner tool, the belt is properly tensioned.<\/li>\n
              • If the O-ring is not visible, the belt tension is too low.<\/li>\n
              • If there is a gap between the O-ring and the body of the tool, the belt tension is too high.<\/li>\n

                \t\t\t\t\"screenshot\"<\/ul>\n<\/li>\n

              • \n

                To adjust the belt tension, loosen the three 5\/32\u201d hex screws on the tensioner.<\/p>\n

                \t\t\"screenshot\"<\/li>\n

              • \n

                If the tension is low, tighten the 5\/32\u201d tensioner adjustment screw.<\/p>\n

                \t\t\"screenshot\"<\/li>\n

              • \n

                If the tension is high, loosen the 5\/32\u201d tensioner adjustment screw.<\/p>\n

                \t\t\"screenshot\"<\/li>\n

              • \n

                Check the tension.<\/p>\n

                \t\t\"screenshot\"<\/p>\n

              • \n

                When the tension is set properly, tighten the three (3) 5\/32\u201d screws on the tensioner.<\/p>\n

                \t\t\"screenshot\"<\/li>\n

              • \n

                Replace the side cover.<\/p>\n

                \t\t\"screenshot\"<\/li>\n<\/ol>\n\r\n\t\t\t

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