The Safety Ordinance for Cranes
(Ordinance of the Ministry of Labour No.34 September 30, 1972)
Chapter II Crane
Section 3 Periodical Self-inspections, etc
Article 34 (Periodical Self-inspections)
- (1) The employer shall, after installation of a crane, perform self-inspection for the said cranes periodically once every period within a year. However, this shall not apply to the non-use period of the crane, which is not used for a period of exceeding one year.
- (2) The employer shall, as regards a crane set forth in the proviso of the preceding paragraph, perform the self-inspection before resuming its use.
- (3) The employer shall perform the load test on the self-inspection set forth in the preceding two paragraphs. However, this shall not apply to the cranes falling under any of the following each item:
- (i) A crane for which the load test pursuant to the provision of paragraph (1) of the Article 40, has been performed within two months before the said self-inspection, or the validity term of the crane inspection certificate of which is to be expired within two months after the said self-inspection;
- (ii) A crane installed at power plants, substations, etc. where there is remarkable difficulty to perform the load test, and the load test for which is found unnecessary by the Chief of the competent Labour Standards Inspection Office.
- (4) The load test set forth in the preceding paragraph shall be done in such manners as performing motions with hoisting, travelling, slewing, trolley traverse, etc., under the rated speed, while suspending a load with the mass corresponding to the rated capacity.
- (1) The employer shall perform self-inspections for a crane as to the following matters periodically once every period within one month. However, this shall not apply to the non-use period of the crane, which is not used for a period exceeding one month:
- (i) Abnormalities on over-winding preventive devices and other safety devices, overload warning devices and other warning devices, brakes and clutches;
- (ii) Damages on wire ropes and lifting chains;
- (iii) Damages on load-lifting attachments such as hooks and grab buckets;
- (iv) Damages on the wiring, collectors, switchboards, switches and controllers;
- (v) Damages on main ropes, rail ropes, connecting parts of guy ropes, and conditions of setting winches, for cable cranes.
- (2) The employer shall, as regards a crane set forth in the proviso of the preceding paragraph, perform the self-inspection as to the matters listed in each item of the same paragraph, before resuming its use.
Article 36 (Checkup before Commencing Work)
- (1) The employer shall, when carrying out the work using a crane, check up the crane as to the following matters before commencing the work for the day:
- (i) The function of over-winding preventive devices, brakes, clutches and controls;
- (ii) The condition on the upper part of runways and rails on which the trolley traverses;
- (iii) The condition of the parts where wire ropes reeve through.
Article 37 (Checkup after Storm, etc.)
- (1) The employer shall, when carrying out the work using a crane installed out of doors, after the wind having instantaneous wind velocity of exceeding 30 m/s, or after the earthquake of medium intensity or heavier, check up in advance, the abnormalities in each part of the crane.
Article 38 (Records of Self-inspection, etc.)
- (1) The employer shall record the results of the self-inspection and the checkup, prescribed in this Section (excluding the checkup set forth in Article 36) and reserve these records for three years.
Article 39 (Repair)
- (1) The employer shall, when any abnormality is found based on the self-inspection or the checkup prescribed in this Section, immediately repair.