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17:04:43.768745+09","90","https://nissei-gtr-en.g.kuroco-img.app/files/user/images/ph-product_1.png",[91,102],[51,54],2,{"topics_category_id":112,"category_nm":57,"parent_id":91,"memo":113,"inst_ymdhi":114,"update_ymdhi":115,"topics_group_id":94,"category_weight":116,"ext_col_01":117,"ext_col_02":45,"ext_col_03":118,"ext_title":45,"open_flg":97,"ext_col_04":45,"ext_col_05":45,"slug":58,"topics_category_ids":119,"category_nms":120,"child_level":110},"22","IPMギアモータ","2022-07-12 15:06:29.76825+09","2026-04-23 17:04:58.71226+09","80","https://nissei-gtr-en.g.kuroco-img.app/files/user/images/ph-product_2.png","※Common to gearmotors",[91,112],[51,57],{"topics_category_id":122,"category_nm":60,"parent_id":91,"memo":123,"inst_ymdhi":124,"update_ymdhi":125,"topics_group_id":94,"category_weight":126,"ext_col_01":127,"ext_col_02":45,"ext_col_03":45,"ext_title":45,"open_flg":97,"ext_col_04":45,"ext_col_05":45,"slug":61,"topics_category_ids":128,"category_nms":129,"child_level":110},"23","バッテリー電源ギアモータ","2022-07-12 15:07:01.697721+09","2026-04-23 17:05:13.245123+09","70","https://nissei-gtr-en.g.kuroco-img.app/files/user/images/ph-product_3.png",[91,122],[51,60],{"topics_category_id":131,"category_nm":63,"parent_id":45,"memo":132,"inst_ymdhi":133,"update_ymdhi":134,"topics_group_id":94,"category_weight":135,"ext_col_01":136,"ext_col_02":45,"ext_col_03":45,"ext_title":45,"open_flg":97,"ext_col_04":137,"ext_col_05":45,"slug":64,"topics_category_ids":138,"category_nms":139,"child_level":100},"24","サーボモータ用高精度減速機","2022-07-12 15:07:50.023907+09","2026-04-23 17:06:51.169052+09","60","https://nissei-global-en.g.kuroco-img.app/files/user/images/product/servo.png","High Precision Reducer\u003Cbr>for Servo Motors",[131],[63],{"topics_category_id":141,"category_nm":66,"parent_id":45,"memo":142,"inst_ymdhi":143,"update_ymdhi":144,"topics_group_id":94,"category_weight":145,"ext_col_01":146,"ext_col_02":45,"ext_col_03":45,"ext_title":45,"open_flg":97,"ext_col_04":45,"ext_col_05":45,"slug":67,"topics_category_ids":147,"category_nms":148,"child_level":100},"25","ギアボックス","2022-07-12 15:08:24.650862+09","2026-04-23 17:07:39.288565+09","50","https://nissei-global-en.g.kuroco-img.app/files/user/images/product/box.png",[141],[66],{"topics_category_id":150,"category_nm":35,"parent_id":45,"memo":151,"inst_ymdhi":152,"update_ymdhi":153,"topics_group_id":94,"category_weight":154,"ext_col_01":155,"ext_col_02":45,"ext_col_03":45,"ext_title":45,"open_flg":97,"ext_col_04":45,"ext_col_05":45,"slug":36,"topics_category_ids":156,"category_nms":157,"child_level":100},"26","高剛性減速機","2022-07-12 15:08:53.01594+09","2026-04-23 17:08:00.61025+09","40","https://nissei-global-en.g.kuroco-img.app/files/user/images/product/rc.png",[150],[35],{"topics_category_id":159,"category_nm":38,"parent_id":45,"memo":160,"inst_ymdhi":161,"update_ymdhi":162,"topics_group_id":94,"category_weight":163,"ext_col_01":164,"ext_col_02":45,"ext_col_03":45,"ext_title":45,"open_flg":97,"ext_col_04":45,"ext_col_05":45,"slug":39,"topics_category_ids":165,"category_nms":166,"child_level":100},"51","歯車","2026-04-23 17:04:08.2212+09","2026-04-23 17:08:44.113579+09","0","https://nissei-global-en.g.kuroco-img.app/files/user/images/product/gear.png",[159],[38],{"totalCnt":168,"perPage":168,"totalPageCnt":100,"pageNo":100,"path":169,"param":45,"startPageNo":100,"endPageNo":100,"first_page_param":45,"previous_page_param":45,"next_page_param":45,"last_page_param":170,"other_page_param":171},8,"/rcms-api/10/product/category/parent","?pageID=1","?pageID=",{"details":173},{"topics_id":174,"ymd":175,"contents_type":176,"subject":177,"topics_flg":100,"open_flg":100,"regular_flg":4,"inst_ymdhi":178,"update_ymdhi":179,"topics_group_id":180,"slug":181,"group_nm":182,"group_description":45,"contents_type_cnt":100,"contents_type_nm":183,"contents_type_slug":184,"contents_type_parent_nm":184,"category_parent_id":184,"contents_type_ext_col_01":45,"contents_type_ext_col_02":45,"contents_type_ext_col_03":45,"contents_type_ext_col_04":45,"contents_type_ext_col_05":45,"contents_type_list":185,"meta_keywords":186,"meta_description":187,"ext_col_03":188,"attention":189,"html":45,"past_html":190},722,"2016-12-12",38,"No.2 Abnormal heating","2022-07-27T15:18:38+09:00","2026-04-23T17:21:58+09:00",17,"gtr-maintenance-koshou01-02","固定ページ","ギアモータ",null,[176],"株式会社ニッセイ,ギアモータ,メンテナンス","株式会社ニッセイのギアモータのメンテナンス情報です。","1943",{},"\u003Csection id=\"SecCnt\">\n\u003Cdiv class=\"breadcrumbs\">\u003Ca href=\"\">Home\u003C/a> > \u003Ca href=\"/en/gtr/\">Gearmotor\u003C/a> > \u003Ca href=\"/en/gtr/maintenance/\">Support\u003C/a> > \u003Ca href=\"/en/gtr/maintenance/\">Cause of the failure and countermeasure (Gearmotor, gearmotor with brake)\u003C/a> > No.2 Abnormal heating\u003C/div>\n\n\u003Csection id=\"SecCntMain\" class=\"mt30\">\n\u003Ch1 class=\"SecCnth1\">No.2 Abnormal heating\u003C/h1>\n\n\u003Ch2 class=\"SecCnth2\">Gearmotor, gearmotor with brake [Cause and countermeasure]\u003C/h2>\n\u003Ch3 class=\"SecCnth3\">Abnormal heating\u003C/h3>\n\n\u003Csection class=\"cf mb50\">\n\u003Ca name=\"21\">\u003C/a>\n\u003Ch4 class=\"SecCnth4\">Defect of the power source, wiring, or control (2.1)\u003C/h4>\n\u003Cp class=\"linkL mb20\">\u003Ca href=\"/en/gtr/maintenance/koshou01/\">Gearmotor, gearmotor with brake\u003C/a>\u003C/p>\n\u003Ctable class=\"prdTbl\">\n\u003Ctr>\n\u003Cth class=\"mainte-th1 center\">Classification No.\u003C/th>\n\u003Cth class=\"mainte-th2 center\">Cause\u003C/th>\n\u003Cth class=\"mainte-th3 center\">Countermeasure\u003C/th>\n\u003Cth class=\"mainte-th4 center\">Inspection procedure and action\u003C/th>\n\u003Cth class=\"mainte-th5 center\">Judging criterion\u003C/th>\n\u003C/tr>\n\u003Ctr>\n\u003Cth class=\"mainte-th1 th2\">2.1.1\u003C/th>\n\u003Ctd class=\"mainte-th2\">Operation under phase loss (1-phase operation)\u003C/td>\n\u003Ctd class=\"mainte-th3\">Input 3-phase securely\u003C/td>\n\u003Ctd class=\"mainte-th4\">Check the interphase voltage. Investigate the electromagnetic switch, fuse, etc. and repair or replace them\u003C/td>\n\u003Ctd class=\"mainte-th5\">The interphase voltages are almost the same\u003C/td>\n\u003C/tr>\n\u003Ctr>\n\u003Cth class=\"mainte-th1 th2\">2.1.2\u003C/th>\n\u003Ctd class=\"mainte-th2\">Decrease in the power voltage\u003C/td>\n\u003Ctd class=\"mainte-th3\">Securing of a sufficient voltage source capacity\u003C/td>\n\u003Ctd class=\"mainte-th4\">Calculate the current of the outline specifications from the nameplate value and check whether the capacity is exceeding the allowable value\u003C/td>\n\u003Ctd class=\"mainte-th5\">Report the capacity (KVA) to NISSEI CORPORATION and check whether it is within the allowable range\u003C/td>\n\u003C/tr>\n\u003Ctr>\n\u003Cth class=\"mainte-th1 th2\">2.1.3\u003C/th>\n\u003Ctd class=\"mainte-th2\">Voltage drop due to the wiring length\u003C/td>\n\u003Ctd class=\"mainte-th3\">Review of the wiring length and wire size\u003C/td>\n\u003Ctd class=\"mainte-th4\">Check the interphase voltage of the motor end with the operation status\u003C/td>\n\u003Ctd class=\"mainte-th5\">Report the interphase voltage to NISSEI CORPORATION and check whether it is within the allowable range\u003C/td>\n\u003C/tr>\n\u003Ctr>\n\u003Cth class=\"mainte-th1 th2\">2.1.4\u003C/th>\n\u003Ctd class=\"mainte-th2\">Defect of the operation of the electromagnetic switch\u003C/td>\n\u003Ctd class=\"mainte-th3\">Replacement\u003C/td>\n\u003Ctd class=\"mainte-th4\">Check the continuity of the electromagnetic switch and the interphase voltage of the load side\u003C/td>\n\u003Ctd class=\"mainte-th5\">The interphase voltages are almost the same\u003C/td>\n\u003C/tr>\n\u003Ctr>\n\u003Cth class=\"mainte-th1 th2\">2.1.5\u003C/th>\n\u003Ctd class=\"mainte-th2\">Mismatch between the inverter and motor\u003C/td>\n\u003Ctd class=\"mainte-th3\">Setting of the optimal constant\u003C/td>\n\u003Ctd class=\"mainte-th4\">Input the automatic tuning or motor constant\u003C/td>\n\u003Ctd class=\"mainte-th5\">The motor frame temperature is within the NISSEI CORPORATION guaranteed value range \u003Cbr>No abnormal vibration, noise, etc. occurs\u003C/td>\n\u003C/tr>\n\u003Ctr>\n\u003Cth class=\"mainte-th1 th2\">2.1.6\u003C/th>\n\u003Ctd class=\"mainte-th2\">The torque boost value is high and the motor rotates in the low-speed area during inverter operation\u003C/td>\n\u003Ctd class=\"mainte-th3\">Lower the torque boost value\u003C/td>\n\u003Ctd class=\"mainte-th4\">Check the torque boost value of the inverter\u003C/td>\n\u003Ctd class=\"mainte-th5\">The motor rotates in the low-speed area and the motor frame temperature is within the manufacturer guaranteed value range\u003C/td>\n\u003C/tr>\n\u003Ctr>\n\u003Cth class=\"mainte-th1 th2\">2.1.7\u003C/th>\n\u003Ctd class=\"mainte-th2\">The brake wiring is not appropriate\u003Cbr>when the inverter is used\u003C/td>\n\u003Ctd class=\"mainte-th3\">Review it and assembly the circuit securely\u003C/td>\n\u003Ctd class=\"mainte-th4\">Check whether the circuit is assembled as recommended\u003C/td>\n\u003Ctd class=\"mainte-th5\">Circuit recommended in the catalog or instruction manual\u003C/td>\n\u003C/tr>\n\u003Ctr>\n\u003Cth class=\"mainte-th1 th2\">2.1.8\u003C/th>\n\u003Ctd class=\"mainte-th2\">Disconnection or connection defect of the brake line\u003C/td>\n\u003Ctd class=\"mainte-th3\">Connect the wire securely\u003C/td>\n\u003Ctd class=\"mainte-th4\">Check continuity of the connected part\u003C/td>\n\u003Ctd class=\"mainte-th5\">There is continuity of the connected part\u003C/td>\n\u003C/tr>\n\u003Ctr>\n\u003Cth class=\"mainte-th1 th2\">2.1.9\u003C/th>\n\u003Ctd class=\"mainte-th2\">Defect of the circuit design or wiring of the brake circuit\u003C/td>\n\u003Ctd class=\"mainte-th3\">Review it and assembly the circuit securely\u003C/td>\n\u003Ctd class=\"mainte-th4\">Check whether the circuit is assembled as recommended by NISSEI CORPORATION\u003C/td>\n\u003Ctd class=\"mainte-th5\">Circuit recommended in the catalog or instruction manual\u003C/td>\n\u003C/tr>\n\u003Ctr>\n\u003Cth class=\"mainte-th1 th2\">2.1.10\u003C/th>\n\u003Ctd class=\"mainte-th2\">Defect of the SSR operation of the brake circuit\u003C/td>\n\u003Ctd class=\"mainte-th3\">Review\u003C/td>\n\u003Ctd class=\"mainte-th4\">Check the pressure resistance value of SSR\u003C/td>\n\u003Ctd class=\"mainte-th5\">It is equivalent to or less than the pressure resistance value written on the surface of SSR\u003C/td>\n\u003C/tr>\n\u003Ctr>\n\u003Cth class=\"mainte-th1 th2\">2.1.11\u003C/th>\n\u003Ctd class=\"mainte-th2\">Breakage of the rectifier\u003C/td>\n\u003Ctd class=\"mainte-th3\">Replacement\u003C/td>\n\u003Ctd class=\"mainte-th4\">Contact NISSEI CORPORATION to check the continuity of each terminal of the rectifier\u003C/td>\n\u003Ctd class=\"mainte-th5\">Contact NISSEI CORPORATION for the check method and check the appropriateness\u003C/td>\n\u003C/tr>\n\u003Ctr>\n\u003Cth class=\"mainte-th1 th2\">2.1.12\u003C/th>\n\u003Ctd class=\"mainte-th2\">The capacitor capacity is large\u003Cbr>(1-phase)\u003C/td>\n\u003Ctd class=\"mainte-th3\">Replace the capacitor with a one with the specified capacity\u003C/td>\n\u003Ctd class=\"mainte-th4\">Check the capacity written on the capacitor\u003C/td>\n\u003Ctd class=\"mainte-th5\">The capacity written on the capacitor and that written on the nameplate value are the same\u003C/td>\n\u003C/tr>\n\u003C/table>\n\n\u003C/section>\n\n\u003Csection class=\"cf mb50\">\u003Ca name=\"22\">\u003C/a>\u003Ch4 class=\"SecCnth4\">Defect of the motor (2.2)\u003C/h4>\n\u003Cp class=\"linkL mb20\">\u003Ca href=\"/en/gtr/maintenance/koshou01/\">Gearmotor, gearmotor with brake\u003C/a>\u003C/p>\n\u003Ctable class=\"prdTbl\">\n\u003Ctr>\n\u003Cth class=\"mainte-th1 center\">Classification No.\u003C/th>\n\u003Cth class=\"mainte-th2 center\">Cause\u003C/th>\n\u003Cth class=\"mainte-th3 center\">Countermeasure\u003C/th>\n\u003Cth class=\"mainte-th4 center\">Inspection procedure and action\u003C/th>\n\u003Cth class=\"mainte-th5 center\">Judging criterion\u003C/th>\n\u003C/tr>\n\u003Ctr>\n\u003Cth class=\"mainte-th1 th2\">2.2.1\u003C/th>\n\u003Ctd class=\"mainte-th2\">Disconnection of the stator winding\u003C/td>\n\u003Ctd class=\"mainte-th3\">Repair by NISSEI CORPORATION\u003C/td>\n\u003Ctd class=\"mainte-th4\">Measure the interphase resistance of the motor\u003C/td>\n\u003Ctd class=\"mainte-th5\">Report the interphase resistance to NISSEI CORPORATION and check whether it is within the allowable range\u003C/td>\n\u003C/tr>\n\u003Ctr>\n\u003Cth class=\"mainte-th1 th2\">2.2.2\u003C/th>\n\u003Ctd class=\"mainte-th2\">Layer short circuit\u003Cbr>of the stator winding\u003C/td>\n\u003Ctd class=\"mainte-th3\">Repair by NISSEI CORPORATION\u003C/td>\n\u003Ctd class=\"mainte-th4\">Measure the interphase resistance of the motor\u003C/td>\n\u003Ctd class=\"mainte-th5\">Report the interphase resistance to NISSEI CORPORATION and check whether it is within the allowable range\u003C/td>\n\u003C/tr>\n\u003Ctr>\n\u003Cth class=\"mainte-th1 th2\">2.2.3\u003C/th>\n\u003Ctd class=\"mainte-th2\">Input power source abnormality\u003C/td>\n\u003Ctd class=\"mainte-th3\">Input the specified voltage\u003C/td>\n\u003Ctd class=\"mainte-th4\">Check the interphase voltage of the motor end\u003C/td>\n\u003Ctd class=\"mainte-th5\">Voltage and frequency written on the nameplate\u003C/td>\n\u003C/tr>\n\u003Ctr>\n\u003Cth class=\"mainte-th1 th2\">2.2.4\u003C/th>\n\u003Ctd class=\"mainte-th2\">Governor switch\u003Cbr>operation defect\u003C/td>\n\u003Ctd class=\"mainte-th3\">Replacement\u003C/td>\n\u003Ctd class=\"mainte-th4\">Check the operation and current value of the breaker and fuse\u003C/td>\n\u003Ctd class=\"mainte-th5\">The motor does not rotate without load or the current value does not exceed the nameplate value with load\u003C/td>\n\u003C/tr>\n\u003Ctr>\n\u003Cth class=\"mainte-th1 th2\">2.2.5\u003C/th>\n\u003Ctd class=\"mainte-th2\">Damage or breakage of\u003Cbr>the bearing or shaft\u003C/td>\n\u003Ctd class=\"mainte-th3\">Repair or replacement\u003C/td>\n\u003Ctd class=\"mainte-th4\">If the output shaft can be rotated, check the load\u003C/td>\n\u003Ctd class=\"mainte-th5\">Contact NISSEI CORPORATION for the reverse rotation torque and check whether it is within the allowable range. No abnormal vibration occurs\u003C/td>\n\u003C/tr>\n\u003Ctr>\n\u003Cth class=\"mainte-th1 th2\">2.2.6\u003C/th>\n\u003Ctd class=\"mainte-th2\">Contact between\u003Cbr>the fan and fan cover\u003C/td>\n\u003Ctd class=\"mainte-th3\">Removal and replacement\u003Cbr>of the contacting and interfering parts\u003C/td>\n\u003Ctd class=\"mainte-th4\">Check appearance of the fan cover\u003C/td>\n\u003Ctd class=\"mainte-th5\">They do not contact each other\u003C/td>\n\u003C/tr>\n\u003Ctr>\n\u003Cth class=\"mainte-th1 th2\">2.2.7\u003C/th>\n\u003Ctd class=\"mainte-th2\">Intrusion of grease\u003Cbr>from the gear head\u003C/td>\n\u003Ctd class=\"mainte-th3\">Replacement\u003C/td>\n\u003Ctd class=\"mainte-th4\">Check the no-load current amount\u003C/td>\n\u003Ctd class=\"mainte-th5\">Report the no-load current to NISSEI CORPORATION and check whether it is within the allowable range\u003C/td>\n\u003C/tr>\n\u003C/table>\n\n\u003C/section>\n\n\u003Csection class=\"cf mb50\">\u003Ca name=\"23\">\u003C/a>\u003Ch4 class=\"SecCnth4\">Defect of the gear head (2.3) \u003C/h4>\n\u003Cp class=\"linkL mb20\">\u003Ca href=\"/en/gtr/maintenance/koshou01/\">Gearmotor, gearmotor with brake\u003C/a>\u003C/p>\n\u003Ctable class=\"prdTbl\">\n\u003Ctr>\n\u003Cth class=\"mainte-th1 center\">Classification No.\u003C/th>\n\u003Cth class=\"mainte-th2 center\">Cause\u003C/th>\n\u003Cth class=\"mainte-th3 center\">Countermeasure\u003C/th>\n\u003Cth class=\"mainte-th4 center\">Inspection procedure and action\u003C/th>\n\u003Cth class=\"mainte-th5 center\">Judging criterion\u003C/th>\n\u003C/tr>\n\u003Ctr>\n\u003Cth class=\"mainte-th1 th2\">2.3.1\u003C/th>\n\u003Ctd class=\"mainte-th2\">Breakage or wear of the gear\u003C/td>\n\u003Ctd class=\"mainte-th3\">Repair by NISSEI CORPORATION\u003C/td>\n\u003Ctd class=\"mainte-th4\">Check whether the motor is rotating, no abnormal noise occurs, and the output shaft rotates\u003C/td>\n\u003Ctd class=\"mainte-th5\">Contact NISSEI CORPORATION for the reverse rotation torque and check whether it is within the allowable range. \u003Cbr>No abnormal vibration nor noise occurs\u003C/td>\n\u003C/tr>\n\u003Ctr>\n\u003Cth class=\"mainte-th1 th2\">2.3.2\u003C/th>\n\u003Ctd class=\"mainte-th2\">Breakage of the bearing or shaft\u003C/td>\n\u003Ctd class=\"mainte-th3\">Repair by NISSEI CORPORATION\u003C/td>\n\u003Ctd class=\"mainte-th4\">Check whether the motor is rotating, no abnormal noise occurs, and the output shaft rotates\u003C/td>\n\u003Ctd class=\"mainte-th5\">Contact NISSEI CORPORATION for the reverse rotation torque and check whether it is within the allowable range. \u003Cbr>No abnormal vibration nor noise occurs\u003C/td>\n\u003C/tr>\n\u003C/table>\n\n\u003C/section>\n\n\u003Csection class=\"cf mb50\">\u003Ca name=\"24\">\u003C/a>\u003Ch4 class=\"SecCnth4\">Defect of the brake (2.4)\u003C/h4>\n\u003Cp class=\"linkL mb20\">\u003Ca href=\"/en/gtr/maintenance/koshou01/\">Gearmotor, gearmotor with brake\u003C/a>\u003C/p>\n\u003Ctable class=\"prdTbl\">\n\u003Ctr>\n\u003Cth class=\"mainte-th1 center\">Classification No.\u003C/th>\n\u003Cth class=\"mainte-th2 center\">Cause\u003C/th>\n\u003Cth class=\"mainte-th3 center\">Countermeasure\u003C/th>\n\u003Cth class=\"mainte-th4 center\">Inspection procedure and action\u003C/th>\n\u003Cth class=\"mainte-th5 center\">Judging criterion\u003C/th>\n\u003C/tr>\n\u003Ctr>\n\u003Cth class=\"mainte-th1 th2\">2.4.1\u003C/th>\n\u003Ctd class=\"mainte-th2\">Rubbing due to a defect of the cap\u003C/td>\n\u003Ctd class=\"mainte-th3\">Cap adjustment\u003C/td>\n\u003Ctd class=\"mainte-th4\">Check the gap between the armature and field with a thickness gauge\u003C/td>\n\u003Ctd class=\"mainte-th5\">Gap amount recommended in the catalog or instruction manual\u003C/td>\n\u003C/tr>\n\u003Ctr>\n\u003Cth class=\"mainte-th1 th2\">2.4.2\u003C/th>\n\u003Ctd class=\"mainte-th2\">Disconnection of the brake coil\u003C/td>\n\u003Ctd class=\"mainte-th3\">Repair by NISSEI CORPORATION\u003C/td>\n\u003Ctd class=\"mainte-th4\">Measure the internal resistance of the brake\u003C/td>\n\u003Ctd class=\"mainte-th5\">Contact NISSEI CORPORATION for the internal resistance and check whether it is within the allowable range\u003C/td>\n\u003C/tr>\n\u003Ctr>\n\u003Cth class=\"mainte-th1 th2\">2.4.3\u003C/th>\n\u003Ctd class=\"mainte-th2\">Rubbing due to burnout of the brake coil\u003C/td>\n\u003Ctd class=\"mainte-th3\">Replacement\u003C/td>\n\u003Ctd class=\"mainte-th4\">Measure the internal resistance of the brake\u003C/td>\n\u003Ctd class=\"mainte-th5\">Contact NISSEI CORPORATION for the internal resistance and check whether it is within the allowable range\u003C/td>\n\u003C/tr>\n\u003Ctr>\n\u003Cth class=\"mainte-th1 th2\">2.4.4\u003C/th>\n\u003Ctd class=\"mainte-th2\">Rubbing due to jamming of a foreign matter\u003C/td>\n\u003Ctd class=\"mainte-th3\">Disassembly and cleaning\u003C/td>\n\u003Ctd class=\"mainte-th4\">Check that the shaft moves smoothly when the power source is applied to the brake\u003C/td>\n\u003Ctd class=\"mainte-th5\"> \u003C/td>\n\u003C/tr>\n\u003Ctr>\n\u003Cth class=\"mainte-th1 th2\">2.4.5\u003C/th>\n\u003Ctd class=\"mainte-th2\">Input power source abnormality\u003C/td>\n\u003Ctd class=\"mainte-th3\">Input the specified voltage\u003C/td>\n\u003Ctd class=\"mainte-th4\">Check the brake input voltage\u003C/td>\n\u003Ctd class=\"mainte-th5\">Report the input voltage to NISSEI CORPORATION and check whether it is within the allowable range\u003C/td>\n\u003C/tr>\n\u003C/table>\n\n\u003C/section>\n\n\u003Csection class=\"cf mb50\">\u003Ca name=\"25\">\u003C/a>\u003Ch4 class=\"SecCnth4\">Defect of the installation or couplings (2.5)\u003C/h4>\n\u003Cp class=\"linkL mb20\">\u003Ca href=\"/en/gtr/maintenance/koshou01/\">Gearmotor, gearmotor with brake\u003C/a>\u003C/p>\n\u003Ctable class=\"prdTbl\">\n\u003Ctr>\n\u003Cth class=\"mainte-th1 center\">Classification No.\u003C/th>\n\u003Cth class=\"mainte-th2 center\">Cause\u003C/th>\n\u003Cth class=\"mainte-th3 center\">Countermeasure\u003C/th>\n\u003Cth class=\"mainte-th4 center\">Inspection procedure and action\u003C/th>\n\u003Cth class=\"mainte-th5 center\">Judging criterion\u003C/th>\n\u003C/tr>\n\u003Ctr>\n\u003Cth class=\"mainte-th1 th2\">2.5.1\u003C/th>\n\u003Ctd class=\"mainte-th2\">Inconsistency of the centers of the shafts\u003C/td>\n\u003Ctd class=\"mainte-th3\">Align the centers of the shafts with each other\u003C/td>\n\u003Ctd class=\"mainte-th4\">Check the misalignment amount\u003C/td>\n\u003Ctd class=\"mainte-th5\">Report the misalignment amount to the coupling manufacturer and check whether it is within the allowable range\u003C/td>\n\u003C/tr>\n\u003Ctr>\n\u003Cth class=\"mainte-th1 th2\">2.5.2\u003C/th>\n\u003Ctd class=\"mainte-th2\">The fan cover is too close to the wall\u003C/td>\n\u003Ctd class=\"mainte-th3\">Separate the fan cover from the wall\u003C/td>\n\u003Ctd class=\"mainte-th4\">Separate the fan cover from the wall as much as possible\u003C/td>\n\u003Ctd class=\"mainte-th5\">Contact NISSEI CORPORATION for the surface temperature and check whether it is within the allowable range\u003C/td>\n\u003C/tr>\n\u003Ctr>\n\u003Cth class=\"mainte-th1 th2\">2.5.3\u003C/th>\n\u003Ctd class=\"mainte-th2\">Clogging of the fan cover\u003C/td>\n\u003Ctd class=\"mainte-th3\">Clean\u003C/td>\n\u003Ctd class=\"mainte-th4\">Remove dust and foreign matters in the air duct\u003C/td>\n\u003Ctd class=\"mainte-th5\">Contact NISSEI CORPORATION for the surface temperature and check whether it is within the allowable range\u003C/td>\n\u003C/tr>\n\u003Ctr>\n\u003Cth class=\"mainte-th1 th2\">2.5.4\u003C/th>\n\u003Ctd class=\"mainte-th2\">The ambient temperature is high\u003C/td>\n\u003Ctd class=\"mainte-th3\">Improve the ventilation\u003C/td>\n\u003Ctd class=\"mainte-th4\">Check the ventilation. Consult NISSEI CORPORATION\u003C/td>\n\u003Ctd class=\"mainte-th5\">Contact NISSEI CORPORATION for the surface temperature and check whether it is within the allowable range\u003C/td>\n\u003C/tr>\n\u003C/table>\n\n\u003C/section>\n\n\u003Csection class=\"cf mb50\">\u003Ca name=\"26\">\u003C/a>\u003Ch4 class=\"SecCnth4\">Defect of a load part or operating conditions (2.6)\u003C/h4>\n\u003Cp class=\"linkL mb20\">\u003Ca href=\"/en/gtr/maintenance/koshou01/\">Gearmotor, gearmotor with brake\u003C/a>\u003C/p>\n\u003Ctable class=\"prdTbl\">\n\u003Ctr>\n\u003Cth class=\"mainte-th1 center\">Classification No.\u003C/th>\n\u003Cth class=\"mainte-th2 center\">Cause\u003C/th>\n\u003Cth class=\"mainte-th3 center\">Countermeasure\u003C/th>\n\u003Cth class=\"mainte-th4 center\">Inspection procedure and action\u003C/th>\n\u003Cth class=\"mainte-th5 center\">Judging criterion\u003C/th>\n\u003C/tr>\n\u003Ctr>\n\u003Cth class=\"mainte-th1 th2\">2.6.1\u003C/th>\n\u003Ctd class=\"mainte-th2\">Selection error\u003Cbr>for the load\u003C/td>\n\u003Ctd class=\"mainte-th3\">Re-selection\u003Cbr>and replacement\u003C/td>\n\u003Ctd class=\"mainte-th4\">Check that the current value is within the rated current value\u003C/td>\n\u003Ctd class=\"mainte-th5\">It is equivalent to or below the rated current value written on the nameplate\u003C/td>\n\u003C/tr>\n\u003Ctr>\n\u003Cth class=\"mainte-th1 th2\">2.6.2\u003C/th>\n\u003Ctd class=\"mainte-th2\">Overload\u003C/td>\n\u003Ctd class=\"mainte-th3\">Remove\u003Cbr>the load\u003C/td>\n\u003Ctd class=\"mainte-th4\">Check that the current value is within the rated current value\u003C/td>\n\u003Ctd class=\"mainte-th5\">It is equivalent to or below the rated current value written on the nameplate\u003C/td>\n\u003C/tr>\n\u003Ctr>\n\u003Cth class=\"mainte-th1 th2\">2.6.3\u003C/th>\n\u003Ctd class=\"mainte-th2\">The startup and stop frequency\u003Cbt>is too high\u003C/td>\n\u003Ctd class=\"mainte-th3\">Lower\u003Cbr>the frequency\u003C/td>\n\u003Ctd class=\"mainte-th4\">Make the startup and stop frequency equivalent to or less then the value recommended by the manufacturer\u003C/td>\n\u003Ctd class=\"mainte-th5\">Contact NISSEI CORPORATION for the surface temperature and check whether it is within the allowable range\u003C/td>\n\u003C/tr>\n\u003Ctr>\n\u003Cth class=\"mainte-th1 th2\">2.6.4\u003C/th>\n\u003Ctd class=\"mainte-th2\">Excessive\u003Cbr>overhung load\u003C/td>\n\u003Ctd class=\"mainte-th3\">Remove\u003Cbr>the load\u003C/td>\n\u003Ctd class=\"mainte-th4\">Check that it is equivalent to or less than the allowable O.H.L. value presented by the manufacturer\u003C/td>\n\u003Ctd class=\"mainte-th5\">It is equivalent to or less than the allowable O.H.L. value written on the catalog\u003C/td>\n\u003C/tr>\n\u003Ctr>\n\u003Cth class=\"mainte-th1 th2\">2.6.5\u003C/th>\n\u003Ctd class=\"mainte-th2\">Too much tension of the belt and chain\u003C/td>\n\u003Ctd class=\"mainte-th3\">Loosen them\u003C/td>\n\u003Ctd class=\"mainte-th4\">Check that the tension is equivalent to or less than the value recommended by the manufacturers\u003C/td>\n\u003Ctd class=\"mainte-th5\">Report the slack amount to the belt and chain manufacturers and check whether it is within the allowable range\u003C/td>\n\u003C/tr>\n\u003C/table>\n\u003C/div>\n\n\u003C/section>\n\n\u003C/section>\n\n\n\n\u003C/section>\n\n\u003Cp id=\"pageTop\">\u003Ca href=\"#\">\u003Ci class=\"fa fa-chevron-up fa-1x\" aria-hidden=\"true\">\u003C/i>\u003C/a>\u003C/p>",[192,194,198],{"name":33,"title":32,"url":193},"/gtr",{"title":195,"url":196,"name":197},"Support","/gtr/maintenance/","gtr-maintenance",{"title":177,"url":199,"name":181},"/gtr/maintenance/koshou01/02/",1779928679066]