Regulation 311(1) The manager of a mine shall appoint for the mine a competent person to thoroughly examine at intervals of not more than twelve month, the parts and working gear whether fixed or movable including the anchoring and fixing appliances of a crane, grab or winch operated by mechanical power and used as a lifting machine in the mine.(2) The manager of a mine shall ensure that (a) except in the case of a new machine, a crane, grab or winch which is operated by mechanical power and which has been dismantled or out of regular use for a period that exceeds two months, is not used as a lifting machine in the mine, for the first time unless immediately before the first use the parts and working gear of that lifting machine, whether fixed or movable including the anchoring and fixing appliances have been thoroughly examined by a competent person appointed for that purpose; and(b) records of the examinations are entered and signed and kept in the mine.