The employer shall ensure at the construction site of a building or other construction work that,—
(a) all lifting appliances including all parts and gears thereof, whether fixed or moveable, are tested and examined by a competent person before being taken into use for the first time or after they have undergone any alterations or repairs, liable to affect their strength or stability, or after erection on a construction site and also once at least in every one year, in the manner, as specified in Schedule-II; and
(b) all lifting appliances are thoroughly examined by a competent person of the employer once at least in every twelve months and where the competent person making such examination forms the opinion that any of the lifting appliances cannot continue to function safely, he shall forthwith give notice in writing of his opinion to the owner of such lifting appliance.
Explanation.—For the purpose of this rule, thorough examination means a visual examination, supplemented, if necessary, by other means such as hammer test carried out as carefully as the conditions permit Section 40 (2) (e) 20 in order to arrive at a reliable conclusion as to the safety of the parts examined; and, if necessary, for such examination, parts of the lifting appliance and gear, shall be dismantled.