Article Content

  Chapter 2 Dangerous machines

   Section 2 Mobile cranes

Article 22
Before manufacturing or making modification to the mobile cranes, the Manufacturer shall fill up the type inspection application form (Annex 1) and submit the same along with the documents listed below to thelocal inspecting organization:
1. Type of mobile crane to be tested, criteria of strength calculation and assembly sketches for the mobile crane applying for inspection.
2. Summary of inspection equipment necessary for the manufacturing process.
3. Brief description of educational background and working experience of the chief designer.
4. Brief description of educational background and working experience of the construction director.
Any alteration of the equipment stipulated in Item 2 or personnel stipulated in Paragraphs 3,4 of the previous paragraph shall be reported to the local inspecting organization.
The quality control, quality assurance measures, equipment and personnel for the type inspection as stipulated in Paragraph 1 shall apply to stipulations in Article 11 and the inspecting organization shall issue the Qualification Certificate of Type Inspection for Manufacturing Equipment (Annex 2) for qualifiers in the said inspection..
The Manufacture or revision shall not be carried out without passing the inspection. However, this shall not apply to types and conditions that have already passed the type inspection.
Article 23
Before using the mobile cranes upon completion of manufacturing or before importing from foreign country, the employer shall fill the Application for Usage Inspection of Mobile cranes (Annex 14), and submit the application along with the documents shown below to the local inspecting organization to apply for the usage inspection:
1. Qualification certification for the type inspection of manufacturing facilities (for the exported facilities, documents relating to quality control etc. shall be attached)
2. Specification of Mobile Cranes (Annex 15)
3. Criteria for strengthen calculation and assembly drawings.
Article 24
The contents of the operation inspection of the mobile cranes shall consist of the items shown below:
1. Structure and performance inspection: including review of the strength calculation for structure, selection of dimensions and materials, review of hoisting load, installation of safety devices, inspection of electrical and mechanical parts, methods of construction, necessary identification of rated load and hoisting load etc., operating speed of various equipment under no load and rated load and other necessary items.
2. Load test: A test to be performed by placing a test load weighing 1.25 times of the rated load of the crane (whenever the rated load exceeding 200 ton, a test load of 50ton plus the rated load shall be taken ) on the hoisting equipment for the as-required test of the hoisting, vertical traveling and rotation actions of the crane and the horizontal traveling action of the chain trolley etc.
3. Stability test: A test to be carried out in different directions, the front stability test shall be carried out by placing a test load weighing 1.27 times of the rated load of the crane on the hoisting equipment for testing the stability under most adverse conditions. and, while the left and right stability and the rear stability shall be demonstrated by calculation method.
4. Other as-required inspections.
The inspecting organization may fully or partially exempt the imported equipment evidenced with corresponding inspection certifications from the inspection requirements stipulated in this Article.
Article 25
After receiving the application for usage inspection of mobile cranes from the manufacturer or the employer, the inspecting organization shall notify the manufacturer or the employer of the date for the inspection so that they can proceed with the preparation of the loads and necessary instruments for performing the load test and stability test accordingly.
Article 26
The inspecting organization shall stamp the qualification mark (annex 7) on the specification of Mobile Cranes for the traveling cranes qualified in the usage inspection or deemed qualified according to Paragraph 2 of Article 24, after being signed by the Inspector, one (1 ) copy of the specification shall then be delivered to the applicant, and the qualification mark shall be printed, painted or posted at distinct part of the object inspected for identification.
The inspecting organization shall issue the Report for Results of Usage Inspection (Annex 16) and Qualification Certificate (Annex 17) to traveling cranes qualified in the completion inspection, the maximum period of validity for the aforesaid documents shall be two (2 ) years.
The Employer shall hang the aforesaid Qualification Certificate or its photocopy in the driving cab of the cranes or at the distinct locations in the workplace.
Article 27
The Employer shall fill up the Application Form for Periodic Inspection of Mobile Cranes (Annex 10) one (1) month before the expiry of the qualification certificate for the inspection of mobile cranes and submit the same to the inspecting organization for application of the periodic inspection. The cranes shall be prohibited from operation, if the inspection is not applied withinthe above time limit or the inspection has not passed.
The aforesaid periodic inspection shall include the inspections for the structure, performance of parts of the crane and the load test as well as other necessary items.
The load test as stipulated in the precedingParagraph refers toa test to be carried out for examination of the hoisting, vertical traveling and rotation actions of the crane, and horizontal traveling action of the chain trolley etc. with a test load equal to the rated load at the rated speed. However, this requirement may be exempted if the inspecting organization deems it unnecessary.
The stipulations in Article 25 shall apply to the load test stipulated in precedingParagraph 2.
Article 28
The inspecting organization shall sign on the original qualification certificate and indicate the extended period of service (2 years as the maximum) for the mobile cranes having passed the periodic inspection.
The Inspector shall fill the Report for the Result of Periodic Inspection for Mobile Cranes (Annex 18) after the completion of the periodic inspection and notify the Employer of the results.
Article 29
To make alterations to any of the following components of the mobile crane, the Employer shall submit the related drawings to the inspecting organization for information andauditing:
1. Prime motor.
2. Hoisting structure.
3. Steel wire or hoisting chain.
4. Hook, grab bucket or other devices.
5. Braking devices.
The requirements stipulated in the preceding Paragraph 1 is not applicable to those alterations made to the above listed components where the involved materials, specifications and dimensions remain unchanged.
If the hoisting load of the mobile crane is intended to be reduced to be less than 3 tons, the Eployer shall report to the inspecting organization for confirmation and revocation of the corresponding inspection qualification certification.
Article 30
When altering the truss, jib, feet, tower or similar structural parts of the traveling crane, the employer shall fill up the Application Form for Alteration Inspection of Mobile Cranes (Annex 12) and submit the same along with the drawings of the parts to be altered to the inspecting organization for application of the alteration inspection.
The inspecting organization shall remark the date and results of the inspection as well as the alterations made to thecomponents on the original qualification certificate for the mobile cranes qualified through the alteration inspection.
The stipulations in Articles 24 and 25 shall apply to the alteration inspection stipulated in the preceding Paragraph 1. .
Article 31
If the idle mobile cranes, which have been out of service for over one (1) year beyond the valid period of the qualification certificate of inspection, are intended to be reused, theEmployer shall fill up the Application Form for Re-inspection of Fixed Type Cranes (Annex 13) and submit the same to the inspecting organization to apply for re-inspection.
The inspecting organization shall remark the date and results of inspection and the service life (2 years as the maximum) on the original qualification certificate for the inspection for mobile cranes qualified in the re-inspection.
The requirements stipulated in Articles 24 and 25 shall mutatis mutandis apply to the re-inspection mentioned in Paragraph 1.