{"id":2153,"date":"2020-06-10T16:22:30","date_gmt":"2020-06-10T07:22:30","guid":{"rendered":"https:\/\/www.shi-ftec.co.jp\/en\/en\/?page_id=2153"},"modified":"2020-06-10T16:22:30","modified_gmt":"2020-06-10T07:22:30","slug":"detail2","status":"publish","type":"page","link":"https:\/\/www.shi-ftec.co.jp\/en\/services\/detail2\/","title":{"rendered":"Proposals for preventive maintenance: CNC Double column Surface Grinding Machine – KSL Series"},"content":{"rendered":"
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Proposals for preventive maintenance: CNC Double column\r\n Surface Grinding Machine – KSL Series<\/h1>\r\n\r\n

Self-diagnosis: KSL series self-diagnosis menu<\/h3>\r\n

Every part of the machine is a consumable, so it may degrade and be damaged. Using the\r\n machine under such circumstances may cause it to break down.<\/p>\r\n

To prevent machine breakdowns, use the self-diagnosis menu to determine if it is necessary to\r\n replace or repair parts.<\/p>\r\n

Inspection items<\/strong><\/p>\r\n

    \r\n
  1. Spindle(KSL-F: Bearing specification\uff09<\/li>\r\n
  2. Hydrostatic bearing spindle (KSL-F: Hydrostatic bearing specifications)<\/li>\r\n
  3. Dynamic bearing spindle (KPL: Dynamic bearing only)<\/li>\r\n
  4. Bed bellows<\/li>\r\n
  5. Cylinder for table driving<\/li>\r\n <\/ol>\r\n
    \r\n \"\"<\/a>\r\n

    Figure 1 Machine inspection position (The position of the KSL-F spindle is not depicted\r\n here.)<\/p>\r\n <\/div>\r\n

    If any of the following applies, a machine overhaul may be necessary.
    \r\n First, please check each of the following items.<\/p>\r\n

    Note 1: For KPL users, check item 2. if spindle has hydrostatic bearing and item 3. if it has\r\n dynamic bearing .<\/p>\r\n

    Note 2: For KPL users, check item 1. if spindle is bearing and item 2. if it has hydrostatic\r\n bearing. Check items 4 and 5 regardless of the machine type.<\/p>\r\n

    \u2460Spindle (KSL-F: Bearing specifications\uff09<\/p>\r\n

      \r\n
    1. The operation time has exceeded 10,000 hours.<\/li>\r\n
    2. There is a strange noise when the spindle is rotating.<\/li>\r\n
    3. It feels strange when it is rotated manually.<\/li>\r\n <\/ol>\r\n\r\n

      \u2461Hydrostatic bearing spindle (KSL-F: Hydrostatic bearing specifications)<\/p>\r\n

        \r\n
      1. 20% or more of the pocket pressure is down compared to the start.<\/li>\r\n
      2. The filter is clogged.<\/li>\r\n
      3. There is abnormal heat generated.<\/li>\r\n
      4. There is a strange noise when the Hydrostatic\u3000bearing spindle is rotating.<\/li>\r\n
      5. It feels strange when it is rotated manually under hydrostatic pressure (scraping,\r\n changes in weight, etc.) <\/li>\r\n
      6. The oil is dirty.<\/li>\r\n <\/ol>\r\n\r\n

        \u2462Dynamic bearing spindle (KPL: Dynamic bearing specifications only)<\/p>\r\n

          \r\n
        1. The free running time differs. (15 seconds or so is normal; 9 seconds and below is\r\n considered abnormal.)<\/li>\r\n
        2. The filter is clogged.<\/li>\r\n
        3. There is a strange noise when the Hydrostatic\u3000bearing spindle is rotating.<\/li>\r\n
        4. It feels strange when it is rotated manually under dynamic pressure.<\/li>\r\n
        5. The oil is dirty.<\/li>\r\n <\/ol>\r\n\r\n

          \u2463Bed bellows (front and back)<\/p>\r\n

            \r\n
          1. There is significant degradation.<\/li>\r\n
          2. There is damage such as holes.<\/li>\r\n
          3. It is bent.<\/li>\r\n <\/ol>\r\n

            The bellows is a consumable, so it may degrade and be damaged when used for a long period of\r\n time.
            Using the machine under such circumstances may cause coolant, waste, etc., to\r\n enter the bed groove and cause the machine to break down.<\/p>\r\n\r\n

            \u2464Cylinder for table driving<\/p>\r\n

              \r\n
            1. It feels strange when moving the table.<\/li>\r\n
            2. Oil is leaking near the cylinder.<\/li>\r\n <\/ol>\r\n

              The cylinder is hidden by the bellows, so it is not visible usually.
              \r\n As a result, operators may not notice any damage, which may lead to a major machine failure.\r\n <\/p>\r\n\r\n

              Please contact us if any of the above applies.<\/p>\r\n\r\n

              Updating control devices that cannot be repaired<\/h3>\r\n

              Some control devices installed in our grinding machines cannot be repaired after the\r\n production has stopped and the applicable service period has passed, even if they are\r\n broken. If a part of the device breaks down, the entire device needs to be replaced.\r\n <\/p>\r\n

              Some devices may take a while to prepare, so there is a risk that they may need to be stopped\r\n for a long period of time after they break down. As preventive maintenance, we recommend\r\n updating control devices before that happens.<\/p>\r\n

              The list below is an example of such devices. We can offer solutions individually if you have\r\n questions or requests.<\/p>\r\n

              List of control devices that cannot be repaired<\/h4>\r\n
              \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n
              Model<\/th>\r\n Uses<\/th>\r\n Name<\/th>\r\n Model<\/th>\r\n Manufacturer<\/th>\r\n <\/tr>\r\n <\/thead>\r\n
              KPL
              KSL
              KSL-F<\/td>\r\n               		Wheel balancing device<\/td>\r\n Water balancer<\/td>\r\n Hydrokompenser HK-5000<\/td>\r\n Hofmann<\/td>\r\n <\/tr>\r\n
              Control device for table drive<\/td>\r\n DC motor drive unit<\/td>\r\n DL-SBZ<\/td>\r\n Mitsubishi Electric<\/td>\r\n <\/tr>\r\n
              LEOPAC-III<\/td>\r\n Toshiba<\/td>\r\n <\/tr>\r\n
              Control device for table drive
              Control device for spindle\r\n drive<\/td>\r\n               		AC spindle drive unit<\/td>\r\n FRENIC5000V3<\/td>\r\n Fuji Electric<\/td>\r\n <\/tr>\r\n
              FRENIC5000V2MKII<\/td>\r\n <\/tr>\r\n
              FRENIC5000V2<\/td>\r\n <\/tr>\r\n
              Control device for spindle drive
              Control device for rotary\r\n dresser drive
              Control device for AWC travel<\/td>\r\n               		Inverter<\/td>\r\n FREQROL-A200 (E)<\/td>\r\n Mitsubishi Electric<\/td>\r\n <\/tr>\r\n
              FREQROL-2200<\/td>\r\n <\/tr>\r\n
              FREQROL-2024<\/td>\r\n <\/tr>\r\n
              FREQROL-K400<\/td>\r\n <\/tr>\r\n
              FREQROL-K3<\/td>\r\n <\/tr>\r\n
              Control device for spindle head travel<\/td>\r\n Fine roll<\/td>\r\n FL750<\/td>\r\n Mitsubishi Electric<\/td>\r\n <\/tr>\r\n
              FL1500<\/td>\r\n <\/tr>\r\n <\/tbody>\r\n <\/table>\r\n <\/div>\r\n\r\n back<\/a>\r\n\r\n <\/div>\r\n<\/div>","protected":false},"excerpt":{"rendered":"Proposals for preventive maintenance: CNC Double column Surface Grinding Machine – KSL Series Self-diagnosis: KSL series self-diagnosis menu Every part of the machine is a consumable, so it may degrade and be damaged. Using the machine under such circumstances may cause it to break down. To prevent machine breakdowns, use the self-diagnosis menu to determine if it is necessary to replace or repair parts. Inspection items Spindle(KSL-F: Bearing specification\uff09 Hydrostatic bearing spindle (KSL-F: Hydrostatic bearing specifications) Dynamic bearing spindle (KPL: Dynamic bearing only) Bed bellows Cylinder for table driving Figure 1 Machine inspection position (The position of the KSL-F spindle is not depicted here.) If any of the following applies, […]

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